Satellite water cleanliness data
Water quality indicators for swimming and diving
267 coastal spots ranked by satellite-derived water quality indicators. Chlorophyll, dissolved oxygen and nutrient data from Copernicus Marine, updated daily.
Not bathing-water safety advice. Check official local notices before entering the water.
How we score water cleanliness
An indicator average of five satellite-derived water quality signals, normalised to a 0 to 100 scale. Lower is better.
Chlorophyll-a35% · Algal bloom and eutrophication risk.
Dissolved O₂30% · Low oxygen indicates dead zones.
Nitrate15% · Agricultural and sewage runoff.
Phosphate10% · Nutrient pollution driver.
SPM10% · Contaminated runoff and sediment.
Lower score means better modelled clarity and quality indicators. It cannot rule out short-lived pollution, bacteria, algal toxins or local runoff.
267 spots
| # | Location | Country | Score ↑ | Rating | Chlorophyll | Dissolved O₂ | Nitrate | Phosphate | SPM |
|---|---|---|---|---|---|---|---|---|---|
| 1 | El Quemao | Spain | 1 | Pristine | 0.1 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.3 g/m3 |
| 2 | Torquay | Australia | 4 | Pristine | 0.3 mg/m3 | 5.83 ml/L | 0.01 mmol/m3 | 0.185 mmol/m3 | 0.8 g/m3 |
| 3 | Bells Beach | Australia | 4 | Pristine | 0.4 mg/m3 | 5.83 ml/L | 0.01 mmol/m3 | 0.185 mmol/m3 | 0.8 g/m3 |
| 4 | Bundoran | Ireland | 4 | Pristine | 0.5 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.4 g/m3 |
| 5 | Mullaghmore Head | Ireland | 4 | Pristine | 0.5 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.4 g/m3 |
| 6 | Gracetown | Australia | 5 | Pristine | 0.2 mg/m3 | 5.29 ml/L | 0.02 mmol/m3 | 0.137 mmol/m3 | 0.3 g/m3 |
| 7 | Phillip Island | Australia | 5 | Pristine | 0.5 mg/m3 | 5.83 ml/L | 0.03 mmol/m3 | 0.202 mmol/m3 | 0.9 g/m3 |
| 8 | Santa Cruz | Portugal | 5 | Pristine | 0.6 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.4 g/m3 |
| 9 | Lagos | Portugal | 5 | Pristine | 0.7 mg/m3 | 5.75 ml/L | 0.34 mmol/m3 | 0.013 mmol/m3 | 0.5 g/m3 |
| 10 | Seaburn | United Kingdom | 5 | Pristine | 0.8 mg/m3 | 5.81 ml/L | 0.34 mmol/m3 | 0.104 mmol/m3 | 0.3 g/m3 |
| 11 | Dungeons | South Africa | 5 | Pristine | 0.8 mg/m3 | 5.92 ml/L | 0.31 mmol/m3 | 0.247 mmol/m3 | 0.4 g/m3 |
| 12 | Kommetjie | South Africa | 5 | Pristine | 0.8 mg/m3 | 5.92 ml/L | 0.31 mmol/m3 | 0.247 mmol/m3 | 0.4 g/m3 |
| 13 | Rincon | United States | 6 | Pristine | 0.3 mg/m3 | 5.65 ml/L | 0.05 mmol/m3 | 0.433 mmol/m3 | 1.0 g/m3 |
| 14 | Tarifa | Spain | 6 | Pristine | 0.4 mg/m3 | 5.23 ml/L | 0.06 mmol/m3 | 0.021 mmol/m3 | 0.3 g/m3 |
| 15 | Brimms Ness | United Kingdom | 6 | Pristine | 0.5 mg/m3 | 6.00 ml/L | 4.21 mmol/m3 | 0.034 mmol/m3 | 0.4 g/m3 |
| 16 | Dunnet Bay | United Kingdom | 6 | Pristine | 0.5 mg/m3 | 6.00 ml/L | 4.21 mmol/m3 | 0.034 mmol/m3 | 0.4 g/m3 |
| 17 | Thurso East | United Kingdom | 6 | Pristine | 0.5 mg/m3 | 5.98 ml/L | 3.65 mmol/m3 | 0.001 mmol/m3 | 0.4 g/m3 |
| 18 | Widemouth Bay | United Kingdom | 6 | Pristine | 0.7 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 19 | El Palmar | Spain | 6 | Pristine | 0.7 mg/m3 | 5.38 ml/L | 0.09 mmol/m3 | 0.024 mmol/m3 | 0.8 g/m3 |
| 20 | Sandsend | United Kingdom | 6 | Pristine | 0.7 mg/m3 | 5.75 ml/L | 0.27 mmol/m3 | 0.238 mmol/m3 | 0.5 g/m3 |
| 21 | Runswick Bay | United Kingdom | 6 | Pristine | 0.7 mg/m3 | 5.75 ml/L | 0.27 mmol/m3 | 0.238 mmol/m3 | 0.5 g/m3 |
| 22 | Harlyn Bay | United Kingdom | 6 | Pristine | 0.7 mg/m3 | 5.32 ml/L | 0.25 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 23 | Polzeath | United Kingdom | 6 | Pristine | 0.7 mg/m3 | 5.32 ml/L | 0.25 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 24 | Nazaré | Portugal | 6 | Pristine | 0.8 mg/m3 | 5.67 ml/L | 0.59 mmol/m3 | 0.012 mmol/m3 | 0.6 g/m3 |
| 25 | Tynemouth | United Kingdom | 6 | Pristine | 0.9 mg/m3 | 5.78 ml/L | 0.09 mmol/m3 | 0.008 mmol/m3 | 2.3 g/m3 |
| 26 | Arrifana | Portugal | 6 | Pristine | 0.9 mg/m3 | 5.69 ml/L | 0.44 mmol/m3 | 0.018 mmol/m3 | 0.5 g/m3 |
| 27 | Lanzarote/Famara | Spain | 7 | Pristine | 0.1 mg/m3 | 4.86 ml/L | 0.00 mmol/m3 | 0.072 mmol/m3 | 0.2 g/m3 |
| 28 | La Santa | Spain | 7 | Pristine | 0.1 mg/m3 | 4.91 ml/L | 0.00 mmol/m3 | 0.080 mmol/m3 | 0.3 g/m3 |
| 29 | Fuerteventura/Cotillo | Spain | 7 | Pristine | 0.1 mg/m3 | 4.91 ml/L | 0.00 mmol/m3 | 0.086 mmol/m3 | 0.7 g/m3 |
| 30 | Gran Canaria/El Confital | Spain | 7 | Pristine | 0.1 mg/m3 | 4.84 ml/L | 0.00 mmol/m3 | 0.081 mmol/m3 | 0.2 g/m3 |
| 31 | Tenerife | Spain | 7 | Pristine | 0.1 mg/m3 | 4.86 ml/L | 0.00 mmol/m3 | 0.075 mmol/m3 | 0.3 g/m3 |
| 32 | El Confital | Spain | 7 | Pristine | 0.1 mg/m3 | 4.84 ml/L | 0.00 mmol/m3 | 0.081 mmol/m3 | 0.2 g/m3 |
| 33 | Burleigh Heads | Australia | 7 | Pristine | 0.2 mg/m3 | 4.99 ml/L | 0.19 mmol/m3 | 0.169 mmol/m3 | 0.3 g/m3 |
| 34 | Snapper Rocks | Australia | 7 | Pristine | 0.2 mg/m3 | 4.98 ml/L | 0.23 mmol/m3 | 0.171 mmol/m3 | 0.3 g/m3 |
| 35 | Kirra | Australia | 7 | Pristine | 0.2 mg/m3 | 4.98 ml/L | 0.23 mmol/m3 | 0.171 mmol/m3 | 0.3 g/m3 |
| 36 | Noosa | Australia | 7 | Pristine | 0.2 mg/m3 | 5.10 ml/L | 0.01 mmol/m3 | 0.143 mmol/m3 | 0.6 g/m3 |
| 37 | The Wedge | United States | 7 | Pristine | 0.2 mg/m3 | 5.57 ml/L | 0.28 mmol/m3 | 0.578 mmol/m3 | 0.5 g/m3 |
| 38 | Huntington Beach | United States | 7 | Pristine | 0.2 mg/m3 | 5.57 ml/L | 0.28 mmol/m3 | 0.578 mmol/m3 | 0.5 g/m3 |
| 39 | Shipwreck Bay | New Zealand | 7 | Pristine | 0.3 mg/m3 | 5.69 ml/L | 2.15 mmol/m3 | 0.311 mmol/m3 | 0.5 g/m3 |
| 40 | Easkey | Ireland | 7 | Pristine | 0.3 mg/m3 | 5.63 ml/L | 3.63 mmol/m3 | 0.002 mmol/m3 | 0.3 g/m3 |
| 41 | Strandhill | Ireland | 7 | Pristine | 0.5 mg/m3 | 5.63 ml/L | 3.63 mmol/m3 | 0.002 mmol/m3 | 0.2 g/m3 |
| 42 | Taghazout | Morocco | 7 | Pristine | 0.6 mg/m3 | 5.37 ml/L | 0.26 mmol/m3 | 0.114 mmol/m3 | 0.8 g/m3 |
| 43 | Mavericks | United States | 7 | Pristine | 0.6 mg/m3 | 6.22 ml/L | 0.54 mmol/m3 | 0.602 mmol/m3 | 0.8 g/m3 |
| 44 | Chapel Porth | United Kingdom | 7 | Pristine | 0.7 mg/m3 | 5.39 ml/L | 1.41 mmol/m3 | 0.000 mmol/m3 | 0.4 g/m3 |
| 45 | Margaret River | Australia | 7 | Pristine | 0.7 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.2 g/m3 |
| 46 | Lakey Peak | Indonesia | 7 | Pristine | 0.8 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.4 g/m3 |
| 47 | Porthleven | United Kingdom | 7 | Pristine | 0.8 mg/m3 | 5.39 ml/L | 1.40 mmol/m3 | 0.000 mmol/m3 | 0.4 g/m3 |
| 48 | Porthtowan | United Kingdom | 7 | Pristine | 0.8 mg/m3 | 5.39 ml/L | 1.40 mmol/m3 | 0.000 mmol/m3 | 0.4 g/m3 |
| 49 | Pantín | Spain | 7 | Pristine | 0.8 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 50 | Anchor Point | Morocco | 7 | Pristine | 0.8 mg/m3 | 5.37 ml/L | 0.25 mmol/m3 | 0.114 mmol/m3 | 0.8 g/m3 |
| 51 | Tiree | United Kingdom | 7 | Pristine | 0.9 mg/m3 | 5.80 ml/L | 2.01 mmol/m3 | 0.001 mmol/m3 | 0.6 g/m3 |
| 52 | Fraserburgh | United Kingdom | 7 | Pristine | 0.9 mg/m3 | 5.98 ml/L | 3.82 mmol/m3 | 0.007 mmol/m3 | 0.4 g/m3 |
| 53 | Bamburgh | United Kingdom | 7 | Pristine | 0.9 mg/m3 | 5.80 ml/L | 1.34 mmol/m3 | 0.001 mmol/m3 | 1.4 g/m3 |
| 54 | Bloubergstrand | South Africa | 7 | Pristine | 1.1 mg/m3 | 5.93 ml/L | 0.56 mmol/m3 | 0.321 mmol/m3 | 0.7 g/m3 |
| 55 | Razo | Spain | 7 | Pristine | 1.2 mg/m3 | 5.84 ml/L | 1.32 mmol/m3 | 0.047 mmol/m3 | 0.8 g/m3 |
| 56 | Baleal | Portugal | 7 | Pristine | 1.3 mg/m3 | 5.70 ml/L | 0.59 mmol/m3 | 0.013 mmol/m3 | 0.6 g/m3 |
| 57 | Peniche/Supertubos | Portugal | 7 | Pristine | 1.3 mg/m3 | 5.70 ml/L | 0.59 mmol/m3 | 0.013 mmol/m3 | 0.6 g/m3 |
| 58 | Praia do Amado | Portugal | 7 | Pristine | 1.4 mg/m3 | 5.69 ml/L | 0.44 mmol/m3 | 0.018 mmol/m3 | 0.4 g/m3 |
| 59 | Sagres | Portugal | 7 | Pristine | 1.4 mg/m3 | 5.69 ml/L | 0.45 mmol/m3 | 0.019 mmol/m3 | 0.4 g/m3 |
| 60 | Tanegashima | Japan | 8 | Pristine | 0.1 mg/m3 | 4.51 ml/L | 0.01 mmol/m3 | 0.049 mmol/m3 | 0.3 g/m3 |
| 61 | Miyazaki | Japan | 8 | Pristine | 0.1 mg/m3 | 4.54 ml/L | 0.04 mmol/m3 | 0.041 mmol/m3 | 0.4 g/m3 |
| 62 | Rhodes | Greece | 8 | Pristine | 0.1 mg/m3 | 4.50 ml/L | 0.01 mmol/m3 | 0.001 mmol/m3 | 0.3 g/m3 |
| 63 | Honolua Bay | United States | 8 | Pristine | 0.1 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.186 mmol/m3 | 0.3 g/m3 |
| 64 | Saint-Leu | Réunion | 8 | Pristine | 0.1 mg/m3 | 4.74 ml/L | 0.00 mmol/m3 | 0.167 mmol/m3 | 0.3 g/m3 |
| 65 | Oludeniz | Turkey | 8 | Pristine | 0.1 mg/m3 | 4.59 ml/L | 0.03 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 66 | Vliho Bay | Greece | 8 | Pristine | 0.2 mg/m3 | 4.57 ml/L | 0.08 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 67 | Tofo | Mozambique | 8 | Pristine | 0.2 mg/m3 | 4.88 ml/L | 0.01 mmol/m3 | 0.153 mmol/m3 | 0.2 g/m3 |
| 68 | Ponta Preta | Cape Verde | 8 | Pristine | 0.2 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.063 mmol/m3 | 0.4 g/m3 |
| 69 | Lennox Head | Australia | 8 | Pristine | 0.2 mg/m3 | 4.95 ml/L | 0.48 mmol/m3 | 0.189 mmol/m3 | 0.4 g/m3 |
| 70 | Izu Peninsula | Japan | 8 | Pristine | 0.2 mg/m3 | 4.60 ml/L | 0.03 mmol/m3 | 0.037 mmol/m3 | 0.4 g/m3 |
| 71 | Niijima | Japan | 8 | Pristine | 0.2 mg/m3 | 4.60 ml/L | 0.02 mmol/m3 | 0.039 mmol/m3 | 0.4 g/m3 |
| 72 | Trestles | United States | 8 | Pristine | 0.2 mg/m3 | 5.47 ml/L | 0.14 mmol/m3 | 0.534 mmol/m3 | 0.7 g/m3 |
| 73 | Anakao | Madagascar | 8 | Pristine | 0.3 mg/m3 | 4.85 ml/L | 0.04 mmol/m3 | 0.160 mmol/m3 | 0.2 g/m3 |
| 74 | Salinas | Spain | 8 | Pristine | 0.3 mg/m3 | 5.29 ml/L | 3.22 mmol/m3 | 0.000 mmol/m3 | 0.4 g/m3 |
| 75 | Durban Bay of Plenty | South Africa | 8 | Pristine | 0.5 mg/m3 | 4.99 ml/L | 0.14 mmol/m3 | 0.197 mmol/m3 | 0.3 g/m3 |
| 76 | Inch Beach | Ireland | 8 | Pristine | 0.6 mg/m3 | 5.50 ml/L | 3.18 mmol/m3 | 0.003 mmol/m3 | 0.2 g/m3 |
| 77 | Bantham | United Kingdom | 8 | Pristine | 0.8 mg/m3 | 5.35 ml/L | 0.95 mmol/m3 | 0.000 mmol/m3 | 1.9 g/m3 |
| 78 | Bigbury-on-Sea | United Kingdom | 8 | Pristine | 0.8 mg/m3 | 5.35 ml/L | 0.95 mmol/m3 | 0.000 mmol/m3 | 1.9 g/m3 |
| 79 | Bude Summerleaze | United Kingdom | 8 | Pristine | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 80 | Blacks Beach | United States | 8 | Pristine | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.7 g/m3 |
| 81 | La Jolla Cove | United States | 8 | Pristine | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.7 g/m3 |
| 82 | Crantock | United Kingdom | 8 | Pristine | 1.0 mg/m3 | 5.39 ml/L | 1.40 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 83 | Perranporth | United Kingdom | 8 | Pristine | 1.0 mg/m3 | 5.39 ml/L | 1.41 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 84 | Newquay/Fistral | United Kingdom | 8 | Pristine | 1.0 mg/m3 | 5.39 ml/L | 1.41 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 85 | Constantine Bay | United Kingdom | 8 | Pristine | 1.0 mg/m3 | 5.39 ml/L | 1.40 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 86 | Lusty Glaze | United Kingdom | 8 | Pristine | 1.0 mg/m3 | 5.39 ml/L | 1.40 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 87 | Watergate Bay | United Kingdom | 8 | Pristine | 1.0 mg/m3 | 5.39 ml/L | 1.40 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 88 | Sennen Cove | United Kingdom | 8 | Pristine | 1.1 mg/m3 | 5.46 ml/L | 0.99 mmol/m3 | 0.000 mmol/m3 | 0.4 g/m3 |
| 89 | Scarborough | United Kingdom | 8 | Pristine | 1.1 mg/m3 | 5.75 ml/L | 0.27 mmol/m3 | 0.238 mmol/m3 | 2.2 g/m3 |
| 90 | Cayton Bay | United Kingdom | 8 | Pristine | 1.1 mg/m3 | 5.75 ml/L | 0.27 mmol/m3 | 0.238 mmol/m3 | 2.2 g/m3 |
| 91 | La Torche | France | 8 | Pristine | 1.3 mg/m3 | 5.54 ml/L | 1.35 mmol/m3 | 0.000 mmol/m3 | 0.4 g/m3 |
| 92 | Tramore | Ireland | 8 | Pristine | 1.4 mg/m3 | 5.60 ml/L | 0.84 mmol/m3 | 0.002 mmol/m3 | 0.5 g/m3 |
| 93 | Sandycove | Ireland | 8 | Pristine | 1.4 mg/m3 | 5.76 ml/L | 0.13 mmol/m3 | 0.013 mmol/m3 | 1.8 g/m3 |
| 94 | Unstad | Norway | 8 | Pristine | 1.7 mg/m3 | 6.23 ml/L | 0.11 mmol/m3 | 0.016 mmol/m3 | 2.1 g/m3 |
| 95 | Siargao/Cloud 9 | Philippines | 9 | Pristine | 0.1 mg/m3 | 4.41 ml/L | 0.00 mmol/m3 | 0.123 mmol/m3 | 0.3 g/m3 |
| 96 | Teahupo'o | French Polynesia | 9 | Pristine | 0.1 mg/m3 | 4.62 ml/L | 0.01 mmol/m3 | 0.220 mmol/m3 | 0.3 g/m3 |
| 97 | Aganoa | Samoa | 9 | Pristine | 0.1 mg/m3 | 4.55 ml/L | 0.00 mmol/m3 | 0.258 mmol/m3 | 0.3 g/m3 |
| 98 | Hookipa | United States | 9 | Pristine | 0.1 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.185 mmol/m3 | 0.3 g/m3 |
| 99 | Jaws/Pe'ahi | United States | 9 | Pristine | 0.1 mg/m3 | 4.65 ml/L | 0.00 mmol/m3 | 0.191 mmol/m3 | 0.3 g/m3 |
| 100 | Fernando de Noronha | Brazil | 9 | Pristine | 0.1 mg/m3 | 4.65 ml/L | 0.37 mmol/m3 | 0.216 mmol/m3 | 0.2 g/m3 |
| 101 | Taitung | Taiwan | 9 | Pristine | 0.1 mg/m3 | 4.51 ml/L | 0.29 mmol/m3 | 0.082 mmol/m3 | 0.8 g/m3 |
| 102 | Simeulue | Indonesia | 9 | Pristine | 0.1 mg/m3 | 4.49 ml/L | 0.01 mmol/m3 | 0.050 mmol/m3 | 0.3 g/m3 |
| 103 | Baler | Philippines | 9 | Pristine | 0.2 mg/m3 | 4.55 ml/L | 0.01 mmol/m3 | 0.099 mmol/m3 | 1.2 g/m3 |
| 104 | Krui | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.65 ml/L | 0.23 mmol/m3 | 0.197 mmol/m3 | 0.5 g/m3 |
| 105 | Bathsheba | Barbados | 9 | Pristine | 0.2 mg/m3 | 4.49 ml/L | 0.00 mmol/m3 | 0.040 mmol/m3 | 1.0 g/m3 |
| 106 | Mentawai Islands | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.56 ml/L | 0.02 mmol/m3 | 0.141 mmol/m3 | 0.3 g/m3 |
| 107 | Kuta Lombok | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.57 ml/L | 0.27 mmol/m3 | 0.123 mmol/m3 | 0.2 g/m3 |
| 108 | Playa Grande | Costa Rica | 9 | Pristine | 0.2 mg/m3 | 4.79 ml/L | 0.03 mmol/m3 | 0.275 mmol/m3 | 0.3 g/m3 |
| 109 | Desert Point | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.60 ml/L | 0.05 mmol/m3 | 0.105 mmol/m3 | 0.2 g/m3 |
| 110 | Pascuales | Mexico | 9 | Pristine | 0.2 mg/m3 | 4.78 ml/L | 0.18 mmol/m3 | 0.217 mmol/m3 | 0.5 g/m3 |
| 111 | Keramas | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.59 ml/L | 0.17 mmol/m3 | 0.116 mmol/m3 | 0.2 g/m3 |
| 112 | Canggu | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.63 ml/L | 0.32 mmol/m3 | 0.127 mmol/m3 | 0.2 g/m3 |
| 113 | Le Moule | Guadeloupe | 9 | Pristine | 0.2 mg/m3 | 4.49 ml/L | 0.00 mmol/m3 | 0.049 mmol/m3 | 0.3 g/m3 |
| 114 | Balangan | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.63 ml/L | 0.30 mmol/m3 | 0.126 mmol/m3 | 0.2 g/m3 |
| 115 | Uluwatu | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.63 ml/L | 0.30 mmol/m3 | 0.126 mmol/m3 | 0.2 g/m3 |
| 116 | Bingin | Indonesia | 9 | Pristine | 0.3 mg/m3 | 4.63 ml/L | 0.32 mmol/m3 | 0.127 mmol/m3 | 0.2 g/m3 |
| 117 | Padang Padang | Indonesia | 9 | Pristine | 0.3 mg/m3 | 4.63 ml/L | 0.30 mmol/m3 | 0.126 mmol/m3 | 0.2 g/m3 |
| 118 | Nosara | Costa Rica | 9 | Pristine | 0.3 mg/m3 | 4.80 ml/L | 0.03 mmol/m3 | 0.277 mmol/m3 | 0.4 g/m3 |
| 119 | Maroubra | Australia | 9 | Pristine | 0.3 mg/m3 | 5.40 ml/L | 2.68 mmol/m3 | 0.255 mmol/m3 | 0.4 g/m3 |
| 120 | Narrabeen | Australia | 9 | Pristine | 0.3 mg/m3 | 5.40 ml/L | 2.68 mmol/m3 | 0.255 mmol/m3 | 0.5 g/m3 |
| 121 | Dee Why | Australia | 9 | Pristine | 0.3 mg/m3 | 5.40 ml/L | 2.68 mmol/m3 | 0.255 mmol/m3 | 0.5 g/m3 |
| 122 | Boracay | Philippines | 9 | Pristine | 0.3 mg/m3 | 4.46 ml/L | 0.01 mmol/m3 | 0.024 mmol/m3 | 0.3 g/m3 |
| 123 | North Stradbroke Island | Australia | 9 | Pristine | 0.5 mg/m3 | 5.00 ml/L | 0.23 mmol/m3 | 0.167 mmol/m3 | 0.8 g/m3 |
| 124 | G-Land | Indonesia | 9 | Pristine | 0.6 mg/m3 | 4.81 ml/L | 0.14 mmol/m3 | 0.138 mmol/m3 | 0.5 g/m3 |
| 125 | Angourie | Australia | 9 | Pristine | 0.6 mg/m3 | 4.98 ml/L | 0.42 mmol/m3 | 0.186 mmol/m3 | 0.6 g/m3 |
| 126 | Jeffreys Bay | South Africa | 9 | Pristine | 0.7 mg/m3 | 5.22 ml/L | 0.90 mmol/m3 | 0.203 mmol/m3 | 0.4 g/m3 |
| 127 | Scarborough Beach | Australia | 9 | Pristine | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.2 g/m3 |
| 128 | Montañita | Ecuador | 9 | Pristine | 1.0 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 129 | Saltburn-by-the-Sea | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.81 ml/L | 0.33 mmol/m3 | 0.103 mmol/m3 | 3.8 g/m3 |
| 130 | Gwithian | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.43 ml/L | 1.25 mmol/m3 | 0.000 mmol/m3 | 0.9 g/m3 |
| 131 | Praa Sands | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.43 ml/L | 1.25 mmol/m3 | 0.000 mmol/m3 | 0.9 g/m3 |
| 132 | Porthmeor | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.43 ml/L | 1.26 mmol/m3 | 0.000 mmol/m3 | 0.9 g/m3 |
| 133 | Whitesands Bay | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.60 ml/L | 1.44 mmol/m3 | 0.000 mmol/m3 | 2.4 g/m3 |
| 134 | Mount Maunganui | New Zealand | 9 | Pristine | 1.5 mg/m3 | 5.96 ml/L | 2.00 mmol/m3 | 0.208 mmol/m3 | 0.5 g/m3 |
| 135 | Barra de la Cruz | Mexico | 10 | Pristine | 0.2 mg/m3 | 4.64 ml/L | 0.15 mmol/m3 | 0.324 mmol/m3 | 0.3 g/m3 |
| 136 | Sayulita | Mexico | 10 | Pristine | 0.2 mg/m3 | 4.60 ml/L | 0.30 mmol/m3 | 0.216 mmol/m3 | 0.5 g/m3 |
| 137 | El Tunco | El Salvador | 10 | Pristine | 0.2 mg/m3 | 4.59 ml/L | 0.03 mmol/m3 | 0.272 mmol/m3 | 0.3 g/m3 |
| 138 | Playa Hermosa | Costa Rica | 10 | Pristine | 0.2 mg/m3 | 4.71 ml/L | 0.02 mmol/m3 | 0.317 mmol/m3 | 0.5 g/m3 |
| 139 | Praia da Pipa | Brazil | 10 | Pristine | 0.2 mg/m3 | 4.55 ml/L | 0.00 mmol/m3 | 0.101 mmol/m3 | 1.6 g/m3 |
| 140 | Puerto Escondido | Mexico | 10 | Pristine | 0.2 mg/m3 | 4.58 ml/L | 0.03 mmol/m3 | 0.285 mmol/m3 | 0.9 g/m3 |
| 141 | El Sunzal | El Salvador | 10 | Pristine | 0.3 mg/m3 | 4.61 ml/L | 0.03 mmol/m3 | 0.308 mmol/m3 | 0.3 g/m3 |
| 142 | Cimaja | Indonesia | 10 | Pristine | 0.3 mg/m3 | 4.68 ml/L | 0.14 mmol/m3 | 0.240 mmol/m3 | 0.9 g/m3 |
| 143 | Laniakea | United States | 10 | Pristine | 0.3 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.157 mmol/m3 | 1.5 g/m3 |
| 144 | Waimea Bay | United States | 10 | Pristine | 0.3 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.157 mmol/m3 | 1.5 g/m3 |
| 145 | Pipeline | United States | 10 | Pristine | 0.3 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.157 mmol/m3 | 1.5 g/m3 |
| 146 | Sunset Beach | United States | 10 | Pristine | 0.3 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.157 mmol/m3 | 1.5 g/m3 |
| 147 | Sebastian Inlet | United States | 10 | Pristine | 0.3 mg/m3 | 4.42 ml/L | 0.02 mmol/m3 | 0.000 mmol/m3 | 1.1 g/m3 |
| 148 | Nias (Sorake) | Indonesia | 10 | Pristine | 0.4 mg/m3 | 4.55 ml/L | 0.01 mmol/m3 | 0.102 mmol/m3 | 1.2 g/m3 |
| 149 | Santa Teresa | Costa Rica | 10 | Pristine | 0.4 mg/m3 | 4.72 ml/L | 0.02 mmol/m3 | 0.312 mmol/m3 | 0.3 g/m3 |
| 150 | Popoyo | Nicaragua | 10 | Pristine | 0.4 mg/m3 | 4.84 ml/L | 0.34 mmol/m3 | 0.354 mmol/m3 | 0.7 g/m3 |
| 151 | Jeju Jungmun | South Korea | 10 | Pristine | 0.4 mg/m3 | 4.57 ml/L | 0.95 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 152 | Dakar Yoff | Senegal | 10 | Pristine | 0.5 mg/m3 | 4.50 ml/L | 0.01 mmol/m3 | 0.034 mmol/m3 | 0.5 g/m3 |
| 153 | Ngor/Ouakam | Senegal | 10 | Pristine | 0.5 mg/m3 | 4.50 ml/L | 0.01 mmol/m3 | 0.034 mmol/m3 | 0.5 g/m3 |
| 154 | New Smyrna Beach | United States | 10 | Pristine | 0.6 mg/m3 | 4.55 ml/L | 0.19 mmol/m3 | 0.001 mmol/m3 | 1.4 g/m3 |
| 155 | Rincón | Puerto Rico | 10 | Pristine | 0.7 mg/m3 | 4.48 ml/L | 0.00 mmol/m3 | 0.018 mmol/m3 | 0.4 g/m3 |
| 156 | Santa Catalina | Panama | 10 | Pristine | 0.7 mg/m3 | 4.69 ml/L | 0.03 mmol/m3 | 0.163 mmol/m3 | 0.4 g/m3 |
| 157 | Manorbier | United Kingdom | 10 | Pristine | 1.2 mg/m3 | 5.49 ml/L | 1.97 mmol/m3 | 0.000 mmol/m3 | 1.9 g/m3 |
| 158 | Ericeira | Portugal | 10 | Pristine | 1.2 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 159 | Ribeira d'Ilhas | Portugal | 10 | Pristine | 1.2 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 160 | Newgale | United Kingdom | 10 | Pristine | 1.2 mg/m3 | 5.48 ml/L | 1.86 mmol/m3 | 0.000 mmol/m3 | 2.4 g/m3 |
| 161 | Santa Cruz | United States | 10 | Pristine | 1.4 mg/m3 | 6.07 ml/L | 0.38 mmol/m3 | 0.655 mmol/m3 | 0.6 g/m3 |
| 162 | Imsouane | Morocco | 10 | Pristine | 1.5 mg/m3 | 5.40 ml/L | 0.43 mmol/m3 | 0.109 mmol/m3 | 0.5 g/m3 |
| 163 | Machrihanish | United Kingdom | 10 | Pristine | 1.7 mg/m3 | 5.78 ml/L | 2.07 mmol/m3 | 0.001 mmol/m3 | 0.9 g/m3 |
| 164 | San José del Cabo | Mexico | 11 | Pristine | 0.2 mg/m3 | 4.40 ml/L | 0.01 mmol/m3 | 0.281 mmol/m3 | 0.3 g/m3 |
| 165 | Somo | Spain | 11 | Pristine | 0.2 mg/m3 | 5.07 ml/L | 5.68 mmol/m3 | 0.000 mmol/m3 | 0.4 g/m3 |
| 166 | Lacanau | France | 11 | Pristine | 0.3 mg/m3 | 5.24 ml/L | 6.18 mmol/m3 | 0.003 mmol/m3 | 0.4 g/m3 |
| 167 | Eoropie | United Kingdom | 11 | Pristine | 0.4 mg/m3 | 5.96 ml/L | 5.68 mmol/m3 | 0.156 mmol/m3 | 4.1 g/m3 |
| 168 | North Malé Atoll | Maldives | 11 | Pristine | 0.4 mg/m3 | 4.49 ml/L | 0.00 mmol/m3 | 0.141 mmol/m3 | 0.9 g/m3 |
| 169 | Avoca Beach | Australia | 11 | Pristine | 0.6 mg/m3 | 5.38 ml/L | 3.52 mmol/m3 | 0.264 mmol/m3 | 0.6 g/m3 |
| 170 | Pavones | Costa Rica | 11 | Pristine | 0.6 mg/m3 | 4.66 ml/L | 0.08 mmol/m3 | 0.225 mmol/m3 | 1.3 g/m3 |
| 171 | Thulusdhoo | Maldives | 11 | Pristine | 0.6 mg/m3 | 4.49 ml/L | 0.00 mmol/m3 | 0.141 mmol/m3 | 0.3 g/m3 |
| 172 | Reykjanes Peninsula | Iceland | 11 | Pristine | 0.7 mg/m3 | 6.25 ml/L | 5.45 mmol/m3 | 0.330 mmol/m3 | 1.0 g/m3 |
| 173 | Troncones | Mexico | 11 | Pristine | 0.8 mg/m3 | 5.06 ml/L | 0.39 mmol/m3 | 0.177 mmol/m3 | 2.5 g/m3 |
| 174 | Brighton | United Kingdom | 11 | Pristine | 1.3 mg/m3 | 5.20 ml/L | 0.16 mmol/m3 | 0.001 mmol/m3 | 3.4 g/m3 |
| 175 | Kimmeridge Bay | United Kingdom | 11 | Pristine | 1.4 mg/m3 | 5.30 ml/L | 0.54 mmol/m3 | 0.001 mmol/m3 | 3.4 g/m3 |
| 176 | Maresias | Brazil | 11 | Pristine | 1.4 mg/m3 | 5.16 ml/L | 0.07 mmol/m3 | 0.139 mmol/m3 | 1.1 g/m3 |
| 177 | Ubatuba | Brazil | 11 | Pristine | 1.4 mg/m3 | 5.13 ml/L | 0.03 mmol/m3 | 0.127 mmol/m3 | 1.7 g/m3 |
| 178 | Freshwater West | United Kingdom | 11 | Pristine | 1.4 mg/m3 | 5.48 ml/L | 1.85 mmol/m3 | 0.000 mmol/m3 | 2.6 g/m3 |
| 179 | Torres | Brazil | 11 | Pristine | 1.7 mg/m3 | 5.43 ml/L | 0.23 mmol/m3 | 0.117 mmol/m3 | 2.0 g/m3 |
| 180 | Florianópolis | Brazil | 11 | Pristine | 1.8 mg/m3 | 5.37 ml/L | 0.08 mmol/m3 | 0.102 mmol/m3 | 1.3 g/m3 |
| 181 | Hoddevik | Norway | 11 | Pristine | 2.5 mg/m3 | 6.13 ml/L | 1.06 mmol/m3 | 0.011 mmol/m3 | 1.5 g/m3 |
| 182 | Cabarete | Dominican Republic | 12 | Pristine | 0.1 mg/m3 | 4.46 ml/L | 0.01 mmol/m3 | 0.009 mmol/m3 | 6.0 g/m3 |
| 183 | Deba | Spain | 12 | Pristine | 0.1 mg/m3 | 5.01 ml/L | 6.27 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 184 | San Sebastián | Spain | 12 | Pristine | 0.1 mg/m3 | 5.03 ml/L | 6.32 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 185 | Zarautz | Spain | 12 | Pristine | 0.1 mg/m3 | 5.01 ml/L | 6.27 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 186 | Cloudbreak | Fiji | 12 | Pristine | 0.2 mg/m3 | 4.68 ml/L | 0.01 mmol/m3 | 0.192 mmol/m3 | 4.8 g/m3 |
| 187 | Restaurants (Namotu) | Fiji | 12 | Pristine | 0.2 mg/m3 | 4.68 ml/L | 0.01 mmol/m3 | 0.192 mmol/m3 | 4.8 g/m3 |
| 188 | Sopelana | Spain | 12 | Pristine | 0.2 mg/m3 | 5.04 ml/L | 6.06 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 189 | Getxo | Spain | 12 | Pristine | 0.2 mg/m3 | 5.04 ml/L | 6.06 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 190 | Bull Bay | Jamaica | 12 | Pristine | 0.2 mg/m3 | 4.46 ml/L | 0.01 mmol/m3 | 0.009 mmol/m3 | 5.1 g/m3 |
| 191 | Anglet | France | 12 | Pristine | 0.3 mg/m3 | 5.04 ml/L | 6.33 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 192 | Biarritz | France | 12 | Pristine | 0.3 mg/m3 | 5.04 ml/L | 6.33 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 193 | Guéthary | France | 12 | Pristine | 0.3 mg/m3 | 5.04 ml/L | 6.33 mmol/m3 | 0.000 mmol/m3 | 0.5 g/m3 |
| 194 | Merewether | Australia | 12 | Pristine | 0.8 mg/m3 | 5.35 ml/L | 3.89 mmol/m3 | 0.237 mmol/m3 | 0.4 g/m3 |
| 195 | Nihiwatu | Indonesia | 12 | Pristine | 1.3 mg/m3 | 4.76 ml/L | 0.00 mmol/m3 | 0.126 mmol/m3 | 0.3 g/m3 |
| 196 | Huanchaco | Peru | 12 | Pristine | 1.5 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.6 g/m3 |
| 197 | Compton Bay | United Kingdom | 12 | Pristine | 1.6 mg/m3 | 5.31 ml/L | 0.20 mmol/m3 | 0.001 mmol/m3 | 4.1 g/m3 |
| 198 | Bracklesham Bay | United Kingdom | 12 | Pristine | 1.6 mg/m3 | 5.23 ml/L | 0.20 mmol/m3 | 0.001 mmol/m3 | 3.8 g/m3 |
| 199 | Filey | United Kingdom | 12 | Pristine | 1.8 mg/m3 | 5.55 ml/L | 0.04 mmol/m3 | 0.165 mmol/m3 | 4.0 g/m3 |
| 200 | Mirleft | Morocco | 12 | Pristine | 2.2 mg/m3 | 5.38 ml/L | 0.20 mmol/m3 | 0.114 mmol/m3 | 0.5 g/m3 |
| 201 | Tamarin Bay | Mauritius | 13 | Pristine | 0.1 mg/m3 | 4.77 ml/L | 0.00 mmol/m3 | 0.151 mmol/m3 | 8.0 g/m3 |
| 202 | Baisha Bay | Taiwan | 13 | Pristine | 0.6 mg/m3 | 4.53 ml/L | 0.04 mmol/m3 | 0.002 mmol/m3 | 5.5 g/m3 |
| 203 | Ichinomiya | Japan | 13 | Pristine | 0.9 mg/m3 | 4.98 ml/L | 1.76 mmol/m3 | 0.340 mmol/m3 | 1.0 g/m3 |
| 204 | Tsurigasaki Beach | Japan | 13 | Pristine | 0.9 mg/m3 | 4.98 ml/L | 1.76 mmol/m3 | 0.340 mmol/m3 | 1.0 g/m3 |
| 205 | Hiriketiya | Sri Lanka | 13 | Pristine | 0.9 mg/m3 | 4.66 ml/L | 0.92 mmol/m3 | 0.320 mmol/m3 | 0.5 g/m3 |
| 206 | Putsborough | United Kingdom | 13 | Pristine | 1.4 mg/m3 | 5.61 ml/L | 3.53 mmol/m3 | 0.006 mmol/m3 | 4.2 g/m3 |
| 207 | Bournemouth | United Kingdom | 13 | Pristine | 2.0 mg/m3 | 5.29 ml/L | 0.44 mmol/m3 | 0.000 mmol/m3 | 3.5 g/m3 |
| 208 | Capbreton | France | 14 | Pristine | 0.2 mg/m3 | 5.04 ml/L | 6.33 mmol/m3 | 0.000 mmol/m3 | 2.6 g/m3 |
| 209 | La Gravière | France | 14 | Pristine | 0.2 mg/m3 | 5.04 ml/L | 6.30 mmol/m3 | 0.000 mmol/m3 | 2.6 g/m3 |
| 210 | Les Cavaliers | France | 14 | Pristine | 0.2 mg/m3 | 5.01 ml/L | 6.04 mmol/m3 | 0.000 mmol/m3 | 2.6 g/m3 |
| 211 | Seignosse | France | 14 | Pristine | 0.2 mg/m3 | 5.01 ml/L | 6.04 mmol/m3 | 0.000 mmol/m3 | 2.6 g/m3 |
| 212 | Hossegor | France | 14 | Pristine | 0.2 mg/m3 | 5.04 ml/L | 6.33 mmol/m3 | 0.000 mmol/m3 | 2.6 g/m3 |
| 213 | El Gouna | Egypt | 14 | Pristine | 0.7 mg/m3 | 4.37 ml/L | 0.00 mmol/m3 | 0.005 mmol/m3 | 5.6 g/m3 |
| 214 | Weligama | Sri Lanka | 14 | Pristine | 1.0 mg/m3 | 4.66 ml/L | 0.92 mmol/m3 | 0.320 mmol/m3 | 0.5 g/m3 |
| 215 | Itacaré | Brazil | 14 | Pristine | 1.1 mg/m3 | 4.63 ml/L | 0.01 mmol/m3 | 0.086 mmol/m3 | 3.8 g/m3 |
| 216 | Raglan | New Zealand | 15 | Pristine | 0.6 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 7.4 g/m3 |
| 217 | Leucate | France | 15 | Pristine | 1.0 mg/m3 | 4.76 ml/L | 0.73 mmol/m3 | 0.000 mmol/m3 | 6.2 g/m3 |
| 218 | Bocas del Toro | Panama | 15 | Pristine | 1.7 mg/m3 | 4.45 ml/L | 0.56 mmol/m3 | 0.001 mmol/m3 | 1.6 g/m3 |
| 219 | Dover | United Kingdom | 15 | Pristine | 2.0 mg/m3 | 5.25 ml/L | 0.16 mmol/m3 | 0.090 mmol/m3 | 5.1 g/m3 |
| 220 | Llangennith | United Kingdom | 15 | Pristine | 2.0 mg/m3 | 5.47 ml/L | 2.27 mmol/m3 | 0.001 mmol/m3 | 4.4 g/m3 |
| 221 | Medewi | Indonesia | 15 | Pristine | 2.0 mg/m3 | 4.65 ml/L | 0.02 mmol/m3 | 0.114 mmol/m3 | 0.5 g/m3 |
| 222 | Mui Ne | Vietnam | 15 | Pristine | 2.0 mg/m3 | 4.69 ml/L | 1.23 mmol/m3 | 0.002 mmol/m3 | 0.7 g/m3 |
| 223 | Garopaba | Brazil | 15 | Pristine | 2.5 mg/m3 | 5.35 ml/L | 0.40 mmol/m3 | 0.128 mmol/m3 | 2.0 g/m3 |
| 224 | Mundaka | Spain | 16 | Clean | 0.2 mg/m3 | 5.00 ml/L | 6.26 mmol/m3 | 0.000 mmol/m3 | 5.6 g/m3 |
| 225 | Lanuza | Philippines | 16 | Clean | 0.4 mg/m3 | 4.43 ml/L | 0.04 mmol/m3 | 0.121 mmol/m3 | 8.3 g/m3 |
| 226 | Cocoa Beach | United States | 16 | Clean | 1.0 mg/m3 | 4.46 ml/L | 0.05 mmol/m3 | 0.000 mmol/m3 | 7.3 g/m3 |
| 227 | Shonan | Japan | 17 | Clean | 0.4 mg/m3 | 6.33 ml/L | 4.97 mmol/m3 | 1.616 mmol/m3 | 0.5 g/m3 |
| 228 | Folly Beach | United States | 17 | Clean | 1.4 mg/m3 | 4.43 ml/L | 1.07 mmol/m3 | 0.000 mmol/m3 | 5.4 g/m3 |
| 229 | Outer Banks | United States | 17 | Clean | 1.8 mg/m3 | 4.49 ml/L | 0.67 mmol/m3 | 0.000 mmol/m3 | 3.2 g/m3 |
| 230 | Saunton Sands | United Kingdom | 17 | Clean | 2.4 mg/m3 | 5.61 ml/L | 3.49 mmol/m3 | 0.005 mmol/m3 | 4.2 g/m3 |
| 231 | Woolacombe | United Kingdom | 17 | Clean | 2.4 mg/m3 | 5.61 ml/L | 3.49 mmol/m3 | 0.005 mmol/m3 | 4.2 g/m3 |
| 232 | Croyde | United Kingdom | 17 | Clean | 2.4 mg/m3 | 5.61 ml/L | 3.53 mmol/m3 | 0.006 mmol/m3 | 4.2 g/m3 |
| 233 | Punta de Mita | Mexico | 18 | Clean | 0.7 mg/m3 | 4.61 ml/L | 0.32 mmol/m3 | 0.217 mmol/m3 | 10.0 g/m3 |
| 234 | Jericoacoara | Brazil | 18 | Clean | 2.0 mg/m3 | 4.54 ml/L | 0.01 mmol/m3 | 0.083 mmol/m3 | 4.7 g/m3 |
| 235 | Dakhla | Morocco | 18 | Clean | 3.3 mg/m3 | 5.15 ml/L | 0.03 mmol/m3 | 0.073 mmol/m3 | 2.1 g/m3 |
| 236 | Cannon Beach | United States | 18 | Clean | 3.9 mg/m3 | 6.25 ml/L | 0.58 mmol/m3 | 0.253 mmol/m3 | 3.9 g/m3 |
| 237 | Matosinhos | Portugal | 18 | Clean | 4.0 mg/m3 | 5.68 ml/L | 1.29 mmol/m3 | 0.063 mmol/m3 | 0.8 g/m3 |
| 238 | Rockaway Beach | United States | 19 | Clean | 3.8 mg/m3 | 5.37 ml/L | 0.41 mmol/m3 | 0.140 mmol/m3 | 1.8 g/m3 |
| 239 | Muizenberg | South Africa | 19 | Clean | 4.6 mg/m3 | 5.92 ml/L | 0.32 mmol/m3 | 0.261 mmol/m3 | 0.5 g/m3 |
| 240 | Caswell Bay | United Kingdom | 20 | Clean | 2.7 mg/m3 | 5.61 ml/L | 3.49 mmol/m3 | 0.005 mmol/m3 | 7.7 g/m3 |
| 241 | Langland Bay | United Kingdom | 20 | Clean | 2.7 mg/m3 | 5.61 ml/L | 3.49 mmol/m3 | 0.005 mmol/m3 | 7.7 g/m3 |
| 242 | Arugam Bay | Sri Lanka | 21 | Clean | 3.1 mg/m3 | 4.56 ml/L | 0.87 mmol/m3 | 0.284 mmol/m3 | 0.3 g/m3 |
| 243 | Piha | New Zealand | 21 | Clean | 4.7 mg/m3 | 5.93 ml/L | 0.12 mmol/m3 | 0.200 mmol/m3 | 4.6 g/m3 |
| 244 | Gordon's Bay | South Africa | 21 | Clean | 5.4 mg/m3 | 5.93 ml/L | 0.13 mmol/m3 | 0.257 mmol/m3 | 0.3 g/m3 |
| 245 | Joss Bay | United Kingdom | 22 | Clean | 2.1 mg/m3 | 5.20 ml/L | 0.04 mmol/m3 | 0.126 mmol/m3 | 18.2 g/m3 |
| 246 | Wrightsville Beach | United States | 23 | Clean | 2.9 mg/m3 | 4.54 ml/L | 1.57 mmol/m3 | 0.002 mmol/m3 | 5.5 g/m3 |
| 247 | Portrush | United Kingdom | 24 | Clean | 3.2 mg/m3 | 5.74 ml/L | 4.90 mmol/m3 | 0.003 mmol/m3 | 9.6 g/m3 |
| 248 | Kovalam | India | 26 | Clean | 2.5 mg/m3 | 4.45 ml/L | 4.17 mmol/m3 | 0.460 mmol/m3 | 3.1 g/m3 |
| 249 | Saquarema | Brazil | 26 | Clean | 5.6 mg/m3 | 5.11 ml/L | 0.07 mmol/m3 | 0.194 mmol/m3 | 0.9 g/m3 |
| 250 | Máncora | Peru | 27 | Clean | 2.3 mg/m3 | 4.66 ml/L | 5.48 mmol/m3 | 0.778 mmol/m3 | 3.3 g/m3 |
| 251 | Rest Bay | United Kingdom | 27 | Clean | 3.5 mg/m3 | 5.49 ml/L | 3.47 mmol/m3 | 0.004 mmol/m3 | 13.0 g/m3 |
| 252 | Chicama | Peru | 28 | Clean | 1.9 mg/m3 | 5.10 ml/L | 7.93 mmol/m3 | 1.050 mmol/m3 | 2.4 g/m3 |
| 253 | Lobitos | Peru | 30 | Clean | 0.9 mg/m3 | 4.22 ml/L | 9.22 mmol/m3 | 1.023 mmol/m3 | 2.8 g/m3 |
| 254 | Ocean Beach SF | United States | 30 | Clean | 4.1 mg/m3 | 5.99 ml/L | 0.99 mmol/m3 | 0.643 mmol/m3 | 18.1 g/m3 |
| 255 | Pichilemu | Chile | 30 | Clean | 5.2 mg/m3 | 5.90 ml/L | 3.66 mmol/m3 | 1.072 mmol/m3 | 0.4 g/m3 |
| 256 | Sidi Kaouki | Morocco | 33 | Moderate | 7.8 mg/m3 | 5.40 ml/L | 0.12 mmol/m3 | 0.067 mmol/m3 | 2.9 g/m3 |
| 257 | Essaouira | Morocco | 33 | Moderate | 7.8 mg/m3 | 5.36 ml/L | 0.14 mmol/m3 | 0.063 mmol/m3 | 2.9 g/m3 |
| 258 | Bolinas | United States | 34 | Moderate | 5.2 mg/m3 | 5.99 ml/L | 0.99 mmol/m3 | 0.643 mmol/m3 | 36.3 g/m3 |
| 259 | Varkala | India | 38 | Moderate | 6.6 mg/m3 | 4.62 ml/L | 3.41 mmol/m3 | 0.412 mmol/m3 | 2.8 g/m3 |
| 260 | La Union (San Juan) | Philippines | 38 | Moderate | 8.7 mg/m3 | 4.51 ml/L | 0.06 mmol/m3 | 0.000 mmol/m3 | 0.7 g/m3 |
| 261 | Elands Bay | South Africa | 38 | Moderate | 10.6 mg/m3 | 6.27 ml/L | 0.53 mmol/m3 | 0.347 mmol/m3 | 0.6 g/m3 |
| 262 | Carcavelos | Portugal | 41 | Moderate | 14.3 mg/m3 | 5.68 ml/L | 0.13 mmol/m3 | 0.003 mmol/m3 | 5.8 g/m3 |
| 263 | Praia do Guincho | Portugal | 41 | Moderate | 14.3 mg/m3 | 5.68 ml/L | 0.13 mmol/m3 | 0.003 mmol/m3 | 5.8 g/m3 |
| 264 | Costa da Caparica | Portugal | 41 | Moderate | 14.3 mg/m3 | 5.68 ml/L | 0.13 mmol/m3 | 0.003 mmol/m3 | 5.8 g/m3 |
| 265 | Pacific City | United States | 47 | Moderate | 4.6 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 7.1 g/m3 |
| 266 | Tybee Island | United States | 47 | Moderate | 9.3 mg/m3 | 4.38 ml/L | 1.47 mmol/m3 | 0.000 mmol/m3 | 6.9 g/m3 |
| 267 | Lahinch | Ireland | 80 | Poor | 7.4 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 33.2 g/m3 |
#1El Quemao
Spain
1
PristineChlorophyll
0.1
Dissolved O₂
-
Nitrate
-
#2Torquay
Australia
4
PristineChlorophyll
0.3
Dissolved O₂
5.83
Nitrate
0.01
#3Bells Beach
Australia
4
PristineChlorophyll
0.4
Dissolved O₂
5.83
Nitrate
0.01
#4Bundoran
Ireland
4
PristineChlorophyll
0.5
Dissolved O₂
-
Nitrate
-
#5Mullaghmore Head
Ireland
4
PristineChlorophyll
0.5
Dissolved O₂
-
Nitrate
-
#6Gracetown
Australia
5
PristineChlorophyll
0.2
Dissolved O₂
5.29
Nitrate
0.02
#7Phillip Island
Australia
5
PristineChlorophyll
0.5
Dissolved O₂
5.83
Nitrate
0.03
#8Santa Cruz
Portugal
5
PristineChlorophyll
0.6
Dissolved O₂
-
Nitrate
-
#9Lagos
Portugal
5
PristineChlorophyll
0.7
Dissolved O₂
5.75
Nitrate
0.34
#10Seaburn
United Kingdom
5
PristineChlorophyll
0.8
Dissolved O₂
5.81
Nitrate
0.34
#11Dungeons
South Africa
5
PristineChlorophyll
0.8
Dissolved O₂
5.92
Nitrate
0.31
#12Kommetjie
South Africa
5
PristineChlorophyll
0.8
Dissolved O₂
5.92
Nitrate
0.31
#13Rincon
United States
6
PristineChlorophyll
0.3
Dissolved O₂
5.65
Nitrate
0.05
#14Tarifa
Spain
6
PristineChlorophyll
0.4
Dissolved O₂
5.23
Nitrate
0.06
#15Brimms Ness
United Kingdom
6
PristineChlorophyll
0.5
Dissolved O₂
6.00
Nitrate
4.21
#16Dunnet Bay
United Kingdom
6
PristineChlorophyll
0.5
Dissolved O₂
6.00
Nitrate
4.21
#17Thurso East
United Kingdom
6
PristineChlorophyll
0.5
Dissolved O₂
5.98
Nitrate
3.65
#18Widemouth Bay
United Kingdom
6
PristineChlorophyll
0.7
Dissolved O₂
-
Nitrate
-
#19El Palmar
Spain
6
PristineChlorophyll
0.7
Dissolved O₂
5.38
Nitrate
0.09
#20Sandsend
United Kingdom
6
PristineChlorophyll
0.7
Dissolved O₂
5.75
Nitrate
0.27
#21Runswick Bay
United Kingdom
6
PristineChlorophyll
0.7
Dissolved O₂
5.75
Nitrate
0.27
#22Harlyn Bay
United Kingdom
6
PristineChlorophyll
0.7
Dissolved O₂
5.32
Nitrate
0.25
#23Polzeath
United Kingdom
6
PristineChlorophyll
0.7
Dissolved O₂
5.32
Nitrate
0.25
#24Nazaré
Portugal
6
PristineChlorophyll
0.8
Dissolved O₂
5.67
Nitrate
0.59
#25Tynemouth
United Kingdom
6
PristineChlorophyll
0.9
Dissolved O₂
5.78
Nitrate
0.09
#26Arrifana
Portugal
6
PristineChlorophyll
0.9
Dissolved O₂
5.69
Nitrate
0.44
#27Lanzarote/Famara
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.86
Nitrate
0.00
#28La Santa
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.91
Nitrate
0.00
#29Fuerteventura/Cotillo
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.91
Nitrate
0.00
#30Gran Canaria/El Confital
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.84
Nitrate
0.00
#31Tenerife
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.86
Nitrate
0.00
#32El Confital
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.84
Nitrate
0.00
#33Burleigh Heads
Australia
7
PristineChlorophyll
0.2
Dissolved O₂
4.99
Nitrate
0.19
#34Snapper Rocks
Australia
7
PristineChlorophyll
0.2
Dissolved O₂
4.98
Nitrate
0.23
#35Kirra
Australia
7
PristineChlorophyll
0.2
Dissolved O₂
4.98
Nitrate
0.23
#36Noosa
Australia
7
PristineChlorophyll
0.2
Dissolved O₂
5.10
Nitrate
0.01
#37The Wedge
United States
7
PristineChlorophyll
0.2
Dissolved O₂
5.57
Nitrate
0.28
#38Huntington Beach
United States
7
PristineChlorophyll
0.2
Dissolved O₂
5.57
Nitrate
0.28
#39Shipwreck Bay
New Zealand
7
PristineChlorophyll
0.3
Dissolved O₂
5.69
Nitrate
2.15
#40Easkey
Ireland
7
PristineChlorophyll
0.3
Dissolved O₂
5.63
Nitrate
3.63
#41Strandhill
Ireland
7
PristineChlorophyll
0.5
Dissolved O₂
5.63
Nitrate
3.63
#42Taghazout
Morocco
7
PristineChlorophyll
0.6
Dissolved O₂
5.37
Nitrate
0.26
#43Mavericks
United States
7
PristineChlorophyll
0.6
Dissolved O₂
6.22
Nitrate
0.54
#44Chapel Porth
United Kingdom
7
PristineChlorophyll
0.7
Dissolved O₂
5.39
Nitrate
1.41
#45Margaret River
Australia
7
PristineChlorophyll
0.7
Dissolved O₂
-
Nitrate
-
#46Lakey Peak
Indonesia
7
PristineChlorophyll
0.8
Dissolved O₂
-
Nitrate
-
#47Porthleven
United Kingdom
7
PristineChlorophyll
0.8
Dissolved O₂
5.39
Nitrate
1.40
#48Porthtowan
United Kingdom
7
PristineChlorophyll
0.8
Dissolved O₂
5.39
Nitrate
1.40
#49Pantín
Spain
7
PristineChlorophyll
0.8
Dissolved O₂
-
Nitrate
-
#50Anchor Point
Morocco
7
PristineChlorophyll
0.8
Dissolved O₂
5.37
Nitrate
0.25
#51Tiree
United Kingdom
7
PristineChlorophyll
0.9
Dissolved O₂
5.80
Nitrate
2.01
#52Fraserburgh
United Kingdom
7
PristineChlorophyll
0.9
Dissolved O₂
5.98
Nitrate
3.82
#53Bamburgh
United Kingdom
7
PristineChlorophyll
0.9
Dissolved O₂
5.80
Nitrate
1.34
#54Bloubergstrand
South Africa
7
PristineChlorophyll
1.1
Dissolved O₂
5.93
Nitrate
0.56
#55Razo
Spain
7
PristineChlorophyll
1.2
Dissolved O₂
5.84
Nitrate
1.32
#56Baleal
Portugal
7
PristineChlorophyll
1.3
Dissolved O₂
5.70
Nitrate
0.59
#57Peniche/Supertubos
Portugal
7
PristineChlorophyll
1.3
Dissolved O₂
5.70
Nitrate
0.59
#58Praia do Amado
Portugal
7
PristineChlorophyll
1.4
Dissolved O₂
5.69
Nitrate
0.44
#59Sagres
Portugal
7
PristineChlorophyll
1.4
Dissolved O₂
5.69
Nitrate
0.45
#60Tanegashima
Japan
8
PristineChlorophyll
0.1
Dissolved O₂
4.51
Nitrate
0.01
#61Miyazaki
Japan
8
PristineChlorophyll
0.1
Dissolved O₂
4.54
Nitrate
0.04
#62Rhodes
Greece
8
PristineChlorophyll
0.1
Dissolved O₂
4.50
Nitrate
0.01
#63Honolua Bay
United States
8
PristineChlorophyll
0.1
Dissolved O₂
4.66
Nitrate
0.00
#64Saint-Leu
Réunion
8
PristineChlorophyll
0.1
Dissolved O₂
4.74
Nitrate
0.00
#65Oludeniz
Turkey
8
PristineChlorophyll
0.1
Dissolved O₂
4.59
Nitrate
0.03
#66Vliho Bay
Greece
8
PristineChlorophyll
0.2
Dissolved O₂
4.57
Nitrate
0.08
#67Tofo
Mozambique
8
PristineChlorophyll
0.2
Dissolved O₂
4.88
Nitrate
0.01
#68Ponta Preta
Cape Verde
8
PristineChlorophyll
0.2
Dissolved O₂
4.66
Nitrate
0.00
#69Lennox Head
Australia
8
PristineChlorophyll
0.2
Dissolved O₂
4.95
Nitrate
0.48
#70Izu Peninsula
Japan
8
PristineChlorophyll
0.2
Dissolved O₂
4.60
Nitrate
0.03
#71Niijima
Japan
8
PristineChlorophyll
0.2
Dissolved O₂
4.60
Nitrate
0.02
#72Trestles
United States
8
PristineChlorophyll
0.2
Dissolved O₂
5.47
Nitrate
0.14
#73Anakao
Madagascar
8
PristineChlorophyll
0.3
Dissolved O₂
4.85
Nitrate
0.04
#74Salinas
Spain
8
PristineChlorophyll
0.3
Dissolved O₂
5.29
Nitrate
3.22
#75Durban Bay of Plenty
South Africa
8
PristineChlorophyll
0.5
Dissolved O₂
4.99
Nitrate
0.14
#76Inch Beach
Ireland
8
PristineChlorophyll
0.6
Dissolved O₂
5.50
Nitrate
3.18
#77Bantham
United Kingdom
8
PristineChlorophyll
0.8
Dissolved O₂
5.35
Nitrate
0.95
#78Bigbury-on-Sea
United Kingdom
8
PristineChlorophyll
0.8
Dissolved O₂
5.35
Nitrate
0.95
#79Bude Summerleaze
United Kingdom
8
PristineChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#80Blacks Beach
United States
8
PristineChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#81La Jolla Cove
United States
8
PristineChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#82Crantock
United Kingdom
8
PristineChlorophyll
1.0
Dissolved O₂
5.39
Nitrate
1.40
#83Perranporth
United Kingdom
8
PristineChlorophyll
1.0
Dissolved O₂
5.39
Nitrate
1.41
#84Newquay/Fistral
United Kingdom
8
PristineChlorophyll
1.0
Dissolved O₂
5.39
Nitrate
1.41
#85Constantine Bay
United Kingdom
8
PristineChlorophyll
1.0
Dissolved O₂
5.39
Nitrate
1.40
#86Lusty Glaze
United Kingdom
8
PristineChlorophyll
1.0
Dissolved O₂
5.39
Nitrate
1.40
#87Watergate Bay
United Kingdom
8
PristineChlorophyll
1.0
Dissolved O₂
5.39
Nitrate
1.40
#88Sennen Cove
United Kingdom
8
PristineChlorophyll
1.1
Dissolved O₂
5.46
Nitrate
0.99
#89Scarborough
United Kingdom
8
PristineChlorophyll
1.1
Dissolved O₂
5.75
Nitrate
0.27
#90Cayton Bay
United Kingdom
8
PristineChlorophyll
1.1
Dissolved O₂
5.75
Nitrate
0.27
#91La Torche
France
8
PristineChlorophyll
1.3
Dissolved O₂
5.54
Nitrate
1.35
#92Tramore
Ireland
8
PristineChlorophyll
1.4
Dissolved O₂
5.60
Nitrate
0.84
#93Sandycove
Ireland
8
PristineChlorophyll
1.4
Dissolved O₂
5.76
Nitrate
0.13
#94Unstad
Norway
8
PristineChlorophyll
1.7
Dissolved O₂
6.23
Nitrate
0.11
#95Siargao/Cloud 9
Philippines
9
PristineChlorophyll
0.1
Dissolved O₂
4.41
Nitrate
0.00
#96Teahupo'o
French Polynesia
9
PristineChlorophyll
0.1
Dissolved O₂
4.62
Nitrate
0.01
#97Aganoa
Samoa
9
PristineChlorophyll
0.1
Dissolved O₂
4.55
Nitrate
0.00
#98Hookipa
United States
9
PristineChlorophyll
0.1
Dissolved O₂
4.66
Nitrate
0.00
#99Jaws/Pe'ahi
United States
9
PristineChlorophyll
0.1
Dissolved O₂
4.65
Nitrate
0.00
#100Fernando de Noronha
Brazil
9
PristineChlorophyll
0.1
Dissolved O₂
4.65
Nitrate
0.37
#101Taitung
Taiwan
9
PristineChlorophyll
0.1
Dissolved O₂
4.51
Nitrate
0.29
#102Simeulue
Indonesia
9
PristineChlorophyll
0.1
Dissolved O₂
4.49
Nitrate
0.01
#103Baler
Philippines
9
PristineChlorophyll
0.2
Dissolved O₂
4.55
Nitrate
0.01
#104Krui
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.65
Nitrate
0.23
#105Bathsheba
Barbados
9
PristineChlorophyll
0.2
Dissolved O₂
4.49
Nitrate
0.00
#106Mentawai Islands
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.56
Nitrate
0.02
#107Kuta Lombok
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.57
Nitrate
0.27
#108Playa Grande
Costa Rica
9
PristineChlorophyll
0.2
Dissolved O₂
4.79
Nitrate
0.03
#109Desert Point
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.60
Nitrate
0.05
#110Pascuales
Mexico
9
PristineChlorophyll
0.2
Dissolved O₂
4.78
Nitrate
0.18
#111Keramas
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.59
Nitrate
0.17
#112Canggu
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.63
Nitrate
0.32
#113Le Moule
Guadeloupe
9
PristineChlorophyll
0.2
Dissolved O₂
4.49
Nitrate
0.00
#114Balangan
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.63
Nitrate
0.30
#115Uluwatu
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.63
Nitrate
0.30
#116Bingin
Indonesia
9
PristineChlorophyll
0.3
Dissolved O₂
4.63
Nitrate
0.32
#117Padang Padang
Indonesia
9
PristineChlorophyll
0.3
Dissolved O₂
4.63
Nitrate
0.30
#118Nosara
Costa Rica
9
PristineChlorophyll
0.3
Dissolved O₂
4.80
Nitrate
0.03
#119Maroubra
Australia
9
PristineChlorophyll
0.3
Dissolved O₂
5.40
Nitrate
2.68
#120Narrabeen
Australia
9
PristineChlorophyll
0.3
Dissolved O₂
5.40
Nitrate
2.68
#121Dee Why
Australia
9
PristineChlorophyll
0.3
Dissolved O₂
5.40
Nitrate
2.68
#122Boracay
Philippines
9
PristineChlorophyll
0.3
Dissolved O₂
4.46
Nitrate
0.01
#123North Stradbroke Island
Australia
9
PristineChlorophyll
0.5
Dissolved O₂
5.00
Nitrate
0.23
#124G-Land
Indonesia
9
PristineChlorophyll
0.6
Dissolved O₂
4.81
Nitrate
0.14
#125Angourie
Australia
9
PristineChlorophyll
0.6
Dissolved O₂
4.98
Nitrate
0.42
#126Jeffreys Bay
South Africa
9
PristineChlorophyll
0.7
Dissolved O₂
5.22
Nitrate
0.90
#127Scarborough Beach
Australia
9
PristineChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#128Montañita
Ecuador
9
PristineChlorophyll
1.0
Dissolved O₂
-
Nitrate
-
#129Saltburn-by-the-Sea
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.81
Nitrate
0.33
#130Gwithian
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.43
Nitrate
1.25
#131Praa Sands
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.43
Nitrate
1.25
#132Porthmeor
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.43
Nitrate
1.26
#133Whitesands Bay
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.60
Nitrate
1.44
#134Mount Maunganui
New Zealand
9
PristineChlorophyll
1.5
Dissolved O₂
5.96
Nitrate
2.00
#135Barra de la Cruz
Mexico
10
PristineChlorophyll
0.2
Dissolved O₂
4.64
Nitrate
0.15
#136Sayulita
Mexico
10
PristineChlorophyll
0.2
Dissolved O₂
4.60
Nitrate
0.30
#137El Tunco
El Salvador
10
PristineChlorophyll
0.2
Dissolved O₂
4.59
Nitrate
0.03
#138Playa Hermosa
Costa Rica
10
PristineChlorophyll
0.2
Dissolved O₂
4.71
Nitrate
0.02
#139Praia da Pipa
Brazil
10
PristineChlorophyll
0.2
Dissolved O₂
4.55
Nitrate
0.00
#140Puerto Escondido
Mexico
10
PristineChlorophyll
0.2
Dissolved O₂
4.58
Nitrate
0.03
#141El Sunzal
El Salvador
10
PristineChlorophyll
0.3
Dissolved O₂
4.61
Nitrate
0.03
#142Cimaja
Indonesia
10
PristineChlorophyll
0.3
Dissolved O₂
4.68
Nitrate
0.14
#143Laniakea
United States
10
PristineChlorophyll
0.3
Dissolved O₂
4.66
Nitrate
0.00
#144Waimea Bay
United States
10
PristineChlorophyll
0.3
Dissolved O₂
4.66
Nitrate
0.00
#145Pipeline
United States
10
PristineChlorophyll
0.3
Dissolved O₂
4.66
Nitrate
0.00
#146Sunset Beach
United States
10
PristineChlorophyll
0.3
Dissolved O₂
4.66
Nitrate
0.00
#147Sebastian Inlet
United States
10
PristineChlorophyll
0.3
Dissolved O₂
4.42
Nitrate
0.02
#148Nias (Sorake)
Indonesia
10
PristineChlorophyll
0.4
Dissolved O₂
4.55
Nitrate
0.01
#149Santa Teresa
Costa Rica
10
PristineChlorophyll
0.4
Dissolved O₂
4.72
Nitrate
0.02
#150Popoyo
Nicaragua
10
PristineChlorophyll
0.4
Dissolved O₂
4.84
Nitrate
0.34
#151Jeju Jungmun
South Korea
10
PristineChlorophyll
0.4
Dissolved O₂
4.57
Nitrate
0.95
#152Dakar Yoff
Senegal
10
PristineChlorophyll
0.5
Dissolved O₂
4.50
Nitrate
0.01
#153Ngor/Ouakam
Senegal
10
PristineChlorophyll
0.5
Dissolved O₂
4.50
Nitrate
0.01
#154New Smyrna Beach
United States
10
PristineChlorophyll
0.6
Dissolved O₂
4.55
Nitrate
0.19
#155Rincón
Puerto Rico
10
PristineChlorophyll
0.7
Dissolved O₂
4.48
Nitrate
0.00
#156Santa Catalina
Panama
10
PristineChlorophyll
0.7
Dissolved O₂
4.69
Nitrate
0.03
#157Manorbier
United Kingdom
10
PristineChlorophyll
1.2
Dissolved O₂
5.49
Nitrate
1.97
#158Ericeira
Portugal
10
PristineChlorophyll
1.2
Dissolved O₂
-
Nitrate
-
#159Ribeira d'Ilhas
Portugal
10
PristineChlorophyll
1.2
Dissolved O₂
-
Nitrate
-
#160Newgale
United Kingdom
10
PristineChlorophyll
1.2
Dissolved O₂
5.48
Nitrate
1.86
#161Santa Cruz
United States
10
PristineChlorophyll
1.4
Dissolved O₂
6.07
Nitrate
0.38
#162Imsouane
Morocco
10
PristineChlorophyll
1.5
Dissolved O₂
5.40
Nitrate
0.43
#163Machrihanish
United Kingdom
10
PristineChlorophyll
1.7
Dissolved O₂
5.78
Nitrate
2.07
#164San José del Cabo
Mexico
11
PristineChlorophyll
0.2
Dissolved O₂
4.40
Nitrate
0.01
#165Somo
Spain
11
PristineChlorophyll
0.2
Dissolved O₂
5.07
Nitrate
5.68
#166Lacanau
France
11
PristineChlorophyll
0.3
Dissolved O₂
5.24
Nitrate
6.18
#167Eoropie
United Kingdom
11
PristineChlorophyll
0.4
Dissolved O₂
5.96
Nitrate
5.68
#168North Malé Atoll
Maldives
11
PristineChlorophyll
0.4
Dissolved O₂
4.49
Nitrate
0.00
#169Avoca Beach
Australia
11
PristineChlorophyll
0.6
Dissolved O₂
5.38
Nitrate
3.52
#170Pavones
Costa Rica
11
PristineChlorophyll
0.6
Dissolved O₂
4.66
Nitrate
0.08
#171Thulusdhoo
Maldives
11
PristineChlorophyll
0.6
Dissolved O₂
4.49
Nitrate
0.00
#172Reykjanes Peninsula
Iceland
11
PristineChlorophyll
0.7
Dissolved O₂
6.25
Nitrate
5.45
#173Troncones
Mexico
11
PristineChlorophyll
0.8
Dissolved O₂
5.06
Nitrate
0.39
#174Brighton
United Kingdom
11
PristineChlorophyll
1.3
Dissolved O₂
5.20
Nitrate
0.16
#175Kimmeridge Bay
United Kingdom
11
PristineChlorophyll
1.4
Dissolved O₂
5.30
Nitrate
0.54
#176Maresias
Brazil
11
PristineChlorophyll
1.4
Dissolved O₂
5.16
Nitrate
0.07
#177Ubatuba
Brazil
11
PristineChlorophyll
1.4
Dissolved O₂
5.13
Nitrate
0.03
#178Freshwater West
United Kingdom
11
PristineChlorophyll
1.4
Dissolved O₂
5.48
Nitrate
1.85
#179Torres
Brazil
11
PristineChlorophyll
1.7
Dissolved O₂
5.43
Nitrate
0.23
#180Florianópolis
Brazil
11
PristineChlorophyll
1.8
Dissolved O₂
5.37
Nitrate
0.08
#181Hoddevik
Norway
11
PristineChlorophyll
2.5
Dissolved O₂
6.13
Nitrate
1.06
#182Cabarete
Dominican Republic
12
PristineChlorophyll
0.1
Dissolved O₂
4.46
Nitrate
0.01
#183Deba
Spain
12
PristineChlorophyll
0.1
Dissolved O₂
5.01
Nitrate
6.27
#184San Sebastián
Spain
12
PristineChlorophyll
0.1
Dissolved O₂
5.03
Nitrate
6.32
#185Zarautz
Spain
12
PristineChlorophyll
0.1
Dissolved O₂
5.01
Nitrate
6.27
#186Cloudbreak
Fiji
12
PristineChlorophyll
0.2
Dissolved O₂
4.68
Nitrate
0.01
#187Restaurants (Namotu)
Fiji
12
PristineChlorophyll
0.2
Dissolved O₂
4.68
Nitrate
0.01
#188Sopelana
Spain
12
PristineChlorophyll
0.2
Dissolved O₂
5.04
Nitrate
6.06
#189Getxo
Spain
12
PristineChlorophyll
0.2
Dissolved O₂
5.04
Nitrate
6.06
#190Bull Bay
Jamaica
12
PristineChlorophyll
0.2
Dissolved O₂
4.46
Nitrate
0.01
#191Anglet
France
12
PristineChlorophyll
0.3
Dissolved O₂
5.04
Nitrate
6.33
#192Biarritz
France
12
PristineChlorophyll
0.3
Dissolved O₂
5.04
Nitrate
6.33
#193Guéthary
France
12
PristineChlorophyll
0.3
Dissolved O₂
5.04
Nitrate
6.33
#194Merewether
Australia
12
PristineChlorophyll
0.8
Dissolved O₂
5.35
Nitrate
3.89
#195Nihiwatu
Indonesia
12
PristineChlorophyll
1.3
Dissolved O₂
4.76
Nitrate
0.00
#196Huanchaco
Peru
12
PristineChlorophyll
1.5
Dissolved O₂
-
Nitrate
-
#197Compton Bay
United Kingdom
12
PristineChlorophyll
1.6
Dissolved O₂
5.31
Nitrate
0.20
#198Bracklesham Bay
United Kingdom
12
PristineChlorophyll
1.6
Dissolved O₂
5.23
Nitrate
0.20
#199Filey
United Kingdom
12
PristineChlorophyll
1.8
Dissolved O₂
5.55
Nitrate
0.04
#200Mirleft
Morocco
12
PristineChlorophyll
2.2
Dissolved O₂
5.38
Nitrate
0.20
#201Tamarin Bay
Mauritius
13
PristineChlorophyll
0.1
Dissolved O₂
4.77
Nitrate
0.00
#202Baisha Bay
Taiwan
13
PristineChlorophyll
0.6
Dissolved O₂
4.53
Nitrate
0.04
#203Ichinomiya
Japan
13
PristineChlorophyll
0.9
Dissolved O₂
4.98
Nitrate
1.76
#204Tsurigasaki Beach
Japan
13
PristineChlorophyll
0.9
Dissolved O₂
4.98
Nitrate
1.76
#205Hiriketiya
Sri Lanka
13
PristineChlorophyll
0.9
Dissolved O₂
4.66
Nitrate
0.92
#206Putsborough
United Kingdom
13
PristineChlorophyll
1.4
Dissolved O₂
5.61
Nitrate
3.53
#207Bournemouth
United Kingdom
13
PristineChlorophyll
2.0
Dissolved O₂
5.29
Nitrate
0.44
#208Capbreton
France
14
PristineChlorophyll
0.2
Dissolved O₂
5.04
Nitrate
6.33
#209La Gravière
France
14
PristineChlorophyll
0.2
Dissolved O₂
5.04
Nitrate
6.30
#210Les Cavaliers
France
14
PristineChlorophyll
0.2
Dissolved O₂
5.01
Nitrate
6.04
#211Seignosse
France
14
PristineChlorophyll
0.2
Dissolved O₂
5.01
Nitrate
6.04
#212Hossegor
France
14
PristineChlorophyll
0.2
Dissolved O₂
5.04
Nitrate
6.33
#213El Gouna
Egypt
14
PristineChlorophyll
0.7
Dissolved O₂
4.37
Nitrate
0.00
#214Weligama
Sri Lanka
14
PristineChlorophyll
1.0
Dissolved O₂
4.66
Nitrate
0.92
#215Itacaré
Brazil
14
PristineChlorophyll
1.1
Dissolved O₂
4.63
Nitrate
0.01
#216Raglan
New Zealand
15
PristineChlorophyll
0.6
Dissolved O₂
-
Nitrate
-
#217Leucate
France
15
PristineChlorophyll
1.0
Dissolved O₂
4.76
Nitrate
0.73
#218Bocas del Toro
Panama
15
PristineChlorophyll
1.7
Dissolved O₂
4.45
Nitrate
0.56
#219Dover
United Kingdom
15
PristineChlorophyll
2.0
Dissolved O₂
5.25
Nitrate
0.16
#220Llangennith
United Kingdom
15
PristineChlorophyll
2.0
Dissolved O₂
5.47
Nitrate
2.27
#221Medewi
Indonesia
15
PristineChlorophyll
2.0
Dissolved O₂
4.65
Nitrate
0.02
#222Mui Ne
Vietnam
15
PristineChlorophyll
2.0
Dissolved O₂
4.69
Nitrate
1.23
#223Garopaba
Brazil
15
PristineChlorophyll
2.5
Dissolved O₂
5.35
Nitrate
0.40
#224Mundaka
Spain
16
CleanChlorophyll
0.2
Dissolved O₂
5.00
Nitrate
6.26
#225Lanuza
Philippines
16
CleanChlorophyll
0.4
Dissolved O₂
4.43
Nitrate
0.04
#226Cocoa Beach
United States
16
CleanChlorophyll
1.0
Dissolved O₂
4.46
Nitrate
0.05
#227Shonan
Japan
17
CleanChlorophyll
0.4
Dissolved O₂
6.33
Nitrate
4.97
#228Folly Beach
United States
17
CleanChlorophyll
1.4
Dissolved O₂
4.43
Nitrate
1.07
#229Outer Banks
United States
17
CleanChlorophyll
1.8
Dissolved O₂
4.49
Nitrate
0.67
#230Saunton Sands
United Kingdom
17
CleanChlorophyll
2.4
Dissolved O₂
5.61
Nitrate
3.49
#231Woolacombe
United Kingdom
17
CleanChlorophyll
2.4
Dissolved O₂
5.61
Nitrate
3.49
#232Croyde
United Kingdom
17
CleanChlorophyll
2.4
Dissolved O₂
5.61
Nitrate
3.53
#233Punta de Mita
Mexico
18
CleanChlorophyll
0.7
Dissolved O₂
4.61
Nitrate
0.32
#234Jericoacoara
Brazil
18
CleanChlorophyll
2.0
Dissolved O₂
4.54
Nitrate
0.01
#235Dakhla
Morocco
18
CleanChlorophyll
3.3
Dissolved O₂
5.15
Nitrate
0.03
#236Cannon Beach
United States
18
CleanChlorophyll
3.9
Dissolved O₂
6.25
Nitrate
0.58
#237Matosinhos
Portugal
18
CleanChlorophyll
4.0
Dissolved O₂
5.68
Nitrate
1.29
#238Rockaway Beach
United States
19
CleanChlorophyll
3.8
Dissolved O₂
5.37
Nitrate
0.41
#239Muizenberg
South Africa
19
CleanChlorophyll
4.6
Dissolved O₂
5.92
Nitrate
0.32
#240Caswell Bay
United Kingdom
20
CleanChlorophyll
2.7
Dissolved O₂
5.61
Nitrate
3.49
#241Langland Bay
United Kingdom
20
CleanChlorophyll
2.7
Dissolved O₂
5.61
Nitrate
3.49
#242Arugam Bay
Sri Lanka
21
CleanChlorophyll
3.1
Dissolved O₂
4.56
Nitrate
0.87
#243Piha
New Zealand
21
CleanChlorophyll
4.7
Dissolved O₂
5.93
Nitrate
0.12
#244Gordon's Bay
South Africa
21
CleanChlorophyll
5.4
Dissolved O₂
5.93
Nitrate
0.13
#245Joss Bay
United Kingdom
22
CleanChlorophyll
2.1
Dissolved O₂
5.20
Nitrate
0.04
#246Wrightsville Beach
United States
23
CleanChlorophyll
2.9
Dissolved O₂
4.54
Nitrate
1.57
#247Portrush
United Kingdom
24
CleanChlorophyll
3.2
Dissolved O₂
5.74
Nitrate
4.90
#248Kovalam
India
26
CleanChlorophyll
2.5
Dissolved O₂
4.45
Nitrate
4.17
#249Saquarema
Brazil
26
CleanChlorophyll
5.6
Dissolved O₂
5.11
Nitrate
0.07
#250Máncora
Peru
27
CleanChlorophyll
2.3
Dissolved O₂
4.66
Nitrate
5.48
#251Rest Bay
United Kingdom
27
CleanChlorophyll
3.5
Dissolved O₂
5.49
Nitrate
3.47
#252Chicama
Peru
28
CleanChlorophyll
1.9
Dissolved O₂
5.10
Nitrate
7.93
#253Lobitos
Peru
30
CleanChlorophyll
0.9
Dissolved O₂
4.22
Nitrate
9.22
#254Ocean Beach SF
United States
30
CleanChlorophyll
4.1
Dissolved O₂
5.99
Nitrate
0.99
#255Pichilemu
Chile
30
CleanChlorophyll
5.2
Dissolved O₂
5.90
Nitrate
3.66
#256Sidi Kaouki
Morocco
33
ModerateChlorophyll
7.8
Dissolved O₂
5.40
Nitrate
0.12
#257Essaouira
Morocco
33
ModerateChlorophyll
7.8
Dissolved O₂
5.36
Nitrate
0.14
#258Bolinas
United States
34
ModerateChlorophyll
5.2
Dissolved O₂
5.99
Nitrate
0.99
#259Varkala
India
38
ModerateChlorophyll
6.6
Dissolved O₂
4.62
Nitrate
3.41
#260La Union (San Juan)
Philippines
38
ModerateChlorophyll
8.7
Dissolved O₂
4.51
Nitrate
0.06
#261Elands Bay
South Africa
38
ModerateChlorophyll
10.6
Dissolved O₂
6.27
Nitrate
0.53
#262Carcavelos
Portugal
41
ModerateChlorophyll
14.3
Dissolved O₂
5.68
Nitrate
0.13
#263Praia do Guincho
Portugal
41
ModerateChlorophyll
14.3
Dissolved O₂
5.68
Nitrate
0.13
#264Costa da Caparica
Portugal
41
ModerateChlorophyll
14.3
Dissolved O₂
5.68
Nitrate
0.13
#265Pacific City
United States
47
ModerateChlorophyll
4.6
Dissolved O₂
-
Nitrate
-
#266Tybee Island
United States
47
ModerateChlorophyll
9.3
Dissolved O₂
4.38
Nitrate
1.47
#267Lahinch
Ireland
80
PoorChlorophyll
7.4
Dissolved O₂
-
Nitrate
-
Satellite data from Copernicus Marine. Data from 22 August 2026
Frequently asked questions
How is the cleanliness score calculated?
We compute an indicator average of five satellite-derived water quality signals: Chlorophyll-a (35%), dissolved oxygen (30%), nitrate (15%), phosphate (10%) and SPM (10%). Each raw value is normalised to a 0 to 100 sub-index, then weighted. Lower is better for modelled clarity and quality indicators, but this is not bathing-water safety advice.
What does dissolved oxygen indicate?
Dissolved oxygen (ml/L) measures how much oxygen is available in the water. Healthy coastal waters typically have 5 to 8 ml/L. Low levels (below 2 ml/L) indicate hypoxia or dead zones, usually caused by nutrient pollution and algal decay. For swimmers, low oxygen is a warning sign of poor water quality and ecological stress.
What are nitrate and phosphate?
Nitrate and phosphate are dissolved nutrients that enter coastal waters from agricultural runoff, sewage, and industrial discharge. Elevated levels fuel algal blooms and eutrophication. Nitrate above 10 mmol/m3 and phosphate above 1 mmol/m3 typically indicate significant nutrient pollution. The data comes from the Copernicus Marine biogeochemistry model at 0.25 degree resolution.
Why not use bacteria testing data?
Faecal indicator bacteria (E. coli, enterococci) are the gold standard for bathing-water health, but they can only be measured from in-water sampling, not from satellites. National agencies like the Environment Agency (England) and EEA (Europe) run sampling programmes, but coverage is limited to specific regions. We show this data as a supplementary badge where available, but the global score uses satellite-derived indicators for consistent, worldwide comparison. Check official local notices before entering the water.
What does chlorophyll indicate?
Chlorophyll-a concentration (mg/m3) is a proxy for phytoplankton density. Low values typically mean clear, nutrient-poor water. Elevated levels above 5 mg/m3 may indicate an algal bloom, which can reduce visibility and occasionally cause irritation.
What is SPM / turbidity?
Suspended Particulate Matter (g/m3) measures particles floating in the water column (sediment, runoff, organic matter). Higher values mean murkier water and often indicate recent storm activity, river runoff, or pollution discharge.
Where does the data come from?
Two Copernicus Marine products. Ocean colour observations (4km resolution) provide chlorophyll-a and SPM from merged satellite data. The biogeochemistry model (0.25 degree resolution) provides dissolved oxygen, nitrate, and phosphate from the GLOBAL_ANALYSISFORECAST_BGC_001_028 product, updated daily.
How often is the data updated?
The catalogue is split across six independently monitored daily runs. Ocean colour data typically lags by 1 to 2 days. The biogeochemistry model provides analysis and short-range forecast data, usually available within 24 hours.
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