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 | 2 | Pristine | 0.2 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.2 g/m3 |
| 2 | Montañita | Ecuador | 3 | Pristine | 0.3 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 3 | Hoddevik | Norway | 4 | Pristine | 0.3 mg/m3 | 5.96 ml/L | 1.80 mmol/m3 | 0.059 mmol/m3 | 0.3 g/m3 |
| 4 | Shipwreck Bay | New Zealand | 4 | Pristine | 0.4 mg/m3 | 5.94 ml/L | 0.17 mmol/m3 | 0.192 mmol/m3 | 0.8 g/m3 |
| 5 | Dungeons | South Africa | 4 | Pristine | 0.4 mg/m3 | 6.09 ml/L | 0.75 mmol/m3 | 0.270 mmol/m3 | 0.4 g/m3 |
| 6 | Kommetjie | South Africa | 4 | Pristine | 0.4 mg/m3 | 6.09 ml/L | 0.75 mmol/m3 | 0.270 mmol/m3 | 0.4 g/m3 |
| 7 | Bells Beach | Australia | 4 | Pristine | 0.5 mg/m3 | 5.80 ml/L | 0.01 mmol/m3 | 0.183 mmol/m3 | 0.9 g/m3 |
| 8 | Torquay | Australia | 4 | Pristine | 0.5 mg/m3 | 5.80 ml/L | 0.01 mmol/m3 | 0.183 mmol/m3 | 0.9 g/m3 |
| 9 | Chapel Porth | United Kingdom | 4 | Pristine | 0.5 mg/m3 | 5.62 ml/L | 0.37 mmol/m3 | 0.004 mmol/m3 | 0.3 g/m3 |
| 10 | Porthleven | United Kingdom | 4 | Pristine | 0.5 mg/m3 | 5.62 ml/L | 0.36 mmol/m3 | 0.002 mmol/m3 | 0.3 g/m3 |
| 11 | Porthtowan | United Kingdom | 4 | Pristine | 0.5 mg/m3 | 5.62 ml/L | 0.36 mmol/m3 | 0.002 mmol/m3 | 0.3 g/m3 |
| 12 | Gwithian | United Kingdom | 4 | Pristine | 0.5 mg/m3 | 5.64 ml/L | 0.30 mmol/m3 | 0.002 mmol/m3 | 0.7 g/m3 |
| 13 | Porthmeor | United Kingdom | 4 | Pristine | 0.5 mg/m3 | 5.64 ml/L | 0.30 mmol/m3 | 0.002 mmol/m3 | 0.7 g/m3 |
| 14 | Praa Sands | United Kingdom | 4 | Pristine | 0.5 mg/m3 | 5.64 ml/L | 0.30 mmol/m3 | 0.002 mmol/m3 | 0.7 g/m3 |
| 15 | Phillip Island | Australia | 4 | Pristine | 0.5 mg/m3 | 5.81 ml/L | 0.02 mmol/m3 | 0.204 mmol/m3 | 0.5 g/m3 |
| 16 | Gracetown | Australia | 5 | Pristine | 0.2 mg/m3 | 5.31 ml/L | 0.01 mmol/m3 | 0.128 mmol/m3 | 0.4 g/m3 |
| 17 | Lagos | Portugal | 5 | Pristine | 0.5 mg/m3 | 5.38 ml/L | 0.23 mmol/m3 | 0.001 mmol/m3 | 0.5 g/m3 |
| 18 | Praia do Amado | Portugal | 5 | Pristine | 0.5 mg/m3 | 5.45 ml/L | 0.26 mmol/m3 | 0.002 mmol/m3 | 0.7 g/m3 |
| 19 | Sagres | Portugal | 5 | Pristine | 0.5 mg/m3 | 5.45 ml/L | 0.26 mmol/m3 | 0.002 mmol/m3 | 0.7 g/m3 |
| 20 | Constantine Bay | United Kingdom | 5 | Pristine | 0.6 mg/m3 | 5.62 ml/L | 0.36 mmol/m3 | 0.002 mmol/m3 | 0.8 g/m3 |
| 21 | Crantock | United Kingdom | 5 | Pristine | 0.6 mg/m3 | 5.62 ml/L | 0.36 mmol/m3 | 0.002 mmol/m3 | 0.8 g/m3 |
| 22 | Lusty Glaze | United Kingdom | 5 | Pristine | 0.6 mg/m3 | 5.62 ml/L | 0.36 mmol/m3 | 0.002 mmol/m3 | 0.8 g/m3 |
| 23 | Newquay/Fistral | United Kingdom | 5 | Pristine | 0.6 mg/m3 | 5.62 ml/L | 0.36 mmol/m3 | 0.002 mmol/m3 | 0.8 g/m3 |
| 24 | Perranporth | United Kingdom | 5 | Pristine | 0.6 mg/m3 | 5.62 ml/L | 0.36 mmol/m3 | 0.002 mmol/m3 | 0.8 g/m3 |
| 25 | Watergate Bay | United Kingdom | 5 | Pristine | 0.6 mg/m3 | 5.62 ml/L | 0.36 mmol/m3 | 0.002 mmol/m3 | 0.8 g/m3 |
| 26 | Sennen Cove | United Kingdom | 5 | Pristine | 0.7 mg/m3 | 5.64 ml/L | 0.29 mmol/m3 | 0.002 mmol/m3 | 0.5 g/m3 |
| 27 | Tarifa | Spain | 6 | Pristine | 0.3 mg/m3 | 5.19 ml/L | 0.14 mmol/m3 | 0.035 mmol/m3 | 0.3 g/m3 |
| 28 | El Palmar | Spain | 6 | Pristine | 0.3 mg/m3 | 5.07 ml/L | 0.03 mmol/m3 | 0.011 mmol/m3 | 0.8 g/m3 |
| 29 | Razo | Spain | 6 | Pristine | 0.4 mg/m3 | 5.71 ml/L | 2.16 mmol/m3 | 0.082 mmol/m3 | 0.5 g/m3 |
| 30 | Mirleft | Morocco | 6 | Pristine | 0.5 mg/m3 | 5.42 ml/L | 0.17 mmol/m3 | 0.104 mmol/m3 | 1.6 g/m3 |
| 31 | Pacific City | United States | 6 | Pristine | 0.7 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.9 g/m3 |
| 32 | Arrifana | Portugal | 6 | Pristine | 0.7 mg/m3 | 5.47 ml/L | 0.26 mmol/m3 | 0.003 mmol/m3 | 0.7 g/m3 |
| 33 | Bantham | United Kingdom | 6 | Pristine | 0.8 mg/m3 | 5.65 ml/L | 0.46 mmol/m3 | 0.018 mmol/m3 | 1.3 g/m3 |
| 34 | Bigbury-on-Sea | United Kingdom | 6 | Pristine | 0.8 mg/m3 | 5.65 ml/L | 0.46 mmol/m3 | 0.018 mmol/m3 | 1.3 g/m3 |
| 35 | Baleal | Portugal | 6 | Pristine | 0.9 mg/m3 | 5.72 ml/L | 0.85 mmol/m3 | 0.043 mmol/m3 | 0.8 g/m3 |
| 36 | Nazaré | Portugal | 6 | Pristine | 0.9 mg/m3 | 5.75 ml/L | 0.69 mmol/m3 | 0.034 mmol/m3 | 0.8 g/m3 |
| 37 | Peniche/Supertubos | Portugal | 6 | Pristine | 0.9 mg/m3 | 5.72 ml/L | 0.85 mmol/m3 | 0.043 mmol/m3 | 0.8 g/m3 |
| 38 | Rhodes | Greece | 7 | Pristine | 0.1 mg/m3 | 4.66 ml/L | 0.01 mmol/m3 | 0.005 mmol/m3 | 0.3 g/m3 |
| 39 | Lanzarote/Famara | Spain | 7 | Pristine | 0.1 mg/m3 | 4.91 ml/L | 0.00 mmol/m3 | 0.083 mmol/m3 | 0.2 g/m3 |
| 40 | Oludeniz | Turkey | 7 | Pristine | 0.1 mg/m3 | 4.71 ml/L | 0.01 mmol/m3 | 0.007 mmol/m3 | 0.4 g/m3 |
| 41 | Tenerife | Spain | 7 | Pristine | 0.2 mg/m3 | 4.77 ml/L | 0.00 mmol/m3 | 0.066 mmol/m3 | 0.3 g/m3 |
| 42 | El Confital | Spain | 7 | Pristine | 0.2 mg/m3 | 4.82 ml/L | 0.00 mmol/m3 | 0.082 mmol/m3 | 0.3 g/m3 |
| 43 | Gran Canaria/El Confital | Spain | 7 | Pristine | 0.2 mg/m3 | 4.81 ml/L | 0.00 mmol/m3 | 0.082 mmol/m3 | 0.3 g/m3 |
| 44 | Noosa | Australia | 7 | Pristine | 0.2 mg/m3 | 4.95 ml/L | 0.01 mmol/m3 | 0.151 mmol/m3 | 0.3 g/m3 |
| 45 | Fuerteventura/Cotillo | Spain | 7 | Pristine | 0.2 mg/m3 | 4.90 ml/L | 0.00 mmol/m3 | 0.087 mmol/m3 | 0.7 g/m3 |
| 46 | La Santa | Spain | 7 | Pristine | 0.2 mg/m3 | 4.92 ml/L | 0.00 mmol/m3 | 0.093 mmol/m3 | 0.2 g/m3 |
| 47 | Vliho Bay | Greece | 7 | Pristine | 0.2 mg/m3 | 4.75 ml/L | 0.01 mmol/m3 | 0.001 mmol/m3 | 0.4 g/m3 |
| 48 | Durban Bay of Plenty | South Africa | 7 | Pristine | 0.2 mg/m3 | 4.97 ml/L | 0.02 mmol/m3 | 0.158 mmol/m3 | 0.4 g/m3 |
| 49 | Merewether | Australia | 7 | Pristine | 0.3 mg/m3 | 5.08 ml/L | 0.35 mmol/m3 | 0.194 mmol/m3 | 0.2 g/m3 |
| 50 | Tramore | Ireland | 7 | Pristine | 0.6 mg/m3 | 5.76 ml/L | 2.26 mmol/m3 | 0.177 mmol/m3 | 0.6 g/m3 |
| 51 | Harlyn Bay | United Kingdom | 7 | Pristine | 0.7 mg/m3 | 5.48 ml/L | 1.37 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 52 | Polzeath | United Kingdom | 7 | Pristine | 0.7 mg/m3 | 5.48 ml/L | 1.37 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 53 | La Torche | France | 7 | Pristine | 0.8 mg/m3 | 5.46 ml/L | 1.32 mmol/m3 | 0.001 mmol/m3 | 0.4 g/m3 |
| 54 | Blacks Beach | United States | 7 | Pristine | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.6 g/m3 |
| 55 | La Jolla Cove | United States | 7 | Pristine | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.6 g/m3 |
| 56 | Tanegashima | Japan | 8 | Pristine | 0.1 mg/m3 | 4.54 ml/L | 0.00 mmol/m3 | 0.043 mmol/m3 | 0.3 g/m3 |
| 57 | Saint-Leu | Réunion | 8 | Pristine | 0.1 mg/m3 | 4.81 ml/L | 0.00 mmol/m3 | 0.160 mmol/m3 | 0.3 g/m3 |
| 58 | Bathsheba | Barbados | 8 | Pristine | 0.1 mg/m3 | 4.45 ml/L | 0.00 mmol/m3 | 0.021 mmol/m3 | 0.2 g/m3 |
| 59 | Mentawai Islands | Indonesia | 8 | Pristine | 0.1 mg/m3 | 4.69 ml/L | 0.02 mmol/m3 | 0.161 mmol/m3 | 0.4 g/m3 |
| 60 | Miyazaki | Japan | 8 | Pristine | 0.1 mg/m3 | 4.56 ml/L | 0.01 mmol/m3 | 0.043 mmol/m3 | 0.4 g/m3 |
| 61 | Margaret River | Australia | 8 | Pristine | 0.2 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 4.4 g/m3 |
| 62 | Simeulue | Indonesia | 8 | Pristine | 0.2 mg/m3 | 4.55 ml/L | 0.01 mmol/m3 | 0.026 mmol/m3 | 0.3 g/m3 |
| 63 | Anakao | Madagascar | 8 | Pristine | 0.2 mg/m3 | 4.77 ml/L | 0.01 mmol/m3 | 0.133 mmol/m3 | 0.2 g/m3 |
| 64 | Tofo | Mozambique | 8 | Pristine | 0.2 mg/m3 | 4.75 ml/L | 0.00 mmol/m3 | 0.123 mmol/m3 | 0.2 g/m3 |
| 65 | Trestles | United States | 8 | Pristine | 0.2 mg/m3 | 5.16 ml/L | 0.05 mmol/m3 | 0.434 mmol/m3 | 0.4 g/m3 |
| 66 | Canggu | Indonesia | 8 | Pristine | 0.2 mg/m3 | 4.63 ml/L | 0.11 mmol/m3 | 0.085 mmol/m3 | 0.3 g/m3 |
| 67 | Desert Point | Indonesia | 8 | Pristine | 0.2 mg/m3 | 4.60 ml/L | 0.02 mmol/m3 | 0.065 mmol/m3 | 0.3 g/m3 |
| 68 | Niijima | Japan | 8 | Pristine | 0.2 mg/m3 | 4.65 ml/L | 0.07 mmol/m3 | 0.053 mmol/m3 | 0.3 g/m3 |
| 69 | Izu Peninsula | Japan | 8 | Pristine | 0.2 mg/m3 | 4.75 ml/L | 0.06 mmol/m3 | 0.077 mmol/m3 | 0.4 g/m3 |
| 70 | Mundaka | Spain | 8 | Pristine | 0.3 mg/m3 | 5.22 ml/L | 3.13 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 71 | Getxo | Spain | 8 | Pristine | 0.3 mg/m3 | 5.26 ml/L | 3.04 mmol/m3 | 0.001 mmol/m3 | 0.3 g/m3 |
| 72 | Sopelana | Spain | 8 | Pristine | 0.3 mg/m3 | 5.24 ml/L | 3.19 mmol/m3 | 0.001 mmol/m3 | 0.3 g/m3 |
| 73 | Burleigh Heads | Australia | 8 | Pristine | 0.4 mg/m3 | 4.96 ml/L | 0.10 mmol/m3 | 0.163 mmol/m3 | 0.3 g/m3 |
| 74 | Kirra | Australia | 8 | Pristine | 0.4 mg/m3 | 4.96 ml/L | 0.10 mmol/m3 | 0.163 mmol/m3 | 0.3 g/m3 |
| 75 | Snapper Rocks | Australia | 8 | Pristine | 0.4 mg/m3 | 4.96 ml/L | 0.10 mmol/m3 | 0.163 mmol/m3 | 0.3 g/m3 |
| 76 | Salinas | Spain | 8 | Pristine | 0.5 mg/m3 | 5.34 ml/L | 2.46 mmol/m3 | 0.000 mmol/m3 | 0.4 g/m3 |
| 77 | Machrihanish | United Kingdom | 8 | Pristine | 1.2 mg/m3 | 5.91 ml/L | 1.97 mmol/m3 | 0.003 mmol/m3 | 1.3 g/m3 |
| 78 | Gordon's Bay | South Africa | 8 | Pristine | 1.6 mg/m3 | 6.17 ml/L | 0.40 mmol/m3 | 0.290 mmol/m3 | 0.7 g/m3 |
| 79 | Teahupo'o | French Polynesia | 9 | Pristine | 0.0 mg/m3 | 4.61 ml/L | 0.00 mmol/m3 | 0.222 mmol/m3 | 0.3 g/m3 |
| 80 | Siargao/Cloud 9 | Philippines | 9 | Pristine | 0.1 mg/m3 | 4.44 ml/L | 0.00 mmol/m3 | 0.100 mmol/m3 | 0.4 g/m3 |
| 81 | Jaws/Pe'ahi | United States | 9 | Pristine | 0.1 mg/m3 | 4.60 ml/L | 0.00 mmol/m3 | 0.221 mmol/m3 | 0.3 g/m3 |
| 82 | Hookipa | United States | 9 | Pristine | 0.1 mg/m3 | 4.65 ml/L | 0.00 mmol/m3 | 0.202 mmol/m3 | 0.3 g/m3 |
| 83 | Honolua Bay | United States | 9 | Pristine | 0.1 mg/m3 | 4.64 ml/L | 0.00 mmol/m3 | 0.202 mmol/m3 | 0.3 g/m3 |
| 84 | Fernando de Noronha | Brazil | 9 | Pristine | 0.1 mg/m3 | 4.63 ml/L | 0.01 mmol/m3 | 0.183 mmol/m3 | 0.3 g/m3 |
| 85 | Baler | Philippines | 9 | Pristine | 0.1 mg/m3 | 4.46 ml/L | 0.01 mmol/m3 | 0.048 mmol/m3 | 0.3 g/m3 |
| 86 | El Sunzal | El Salvador | 9 | Pristine | 0.1 mg/m3 | 4.73 ml/L | 0.18 mmol/m3 | 0.277 mmol/m3 | 0.4 g/m3 |
| 87 | Thulusdhoo | Maldives | 9 | Pristine | 0.2 mg/m3 | 4.50 ml/L | 0.01 mmol/m3 | 0.130 mmol/m3 | 0.3 g/m3 |
| 88 | Le Moule | Guadeloupe | 9 | Pristine | 0.2 mg/m3 | 4.47 ml/L | 0.00 mmol/m3 | 0.015 mmol/m3 | 0.3 g/m3 |
| 89 | El Tunco | El Salvador | 9 | Pristine | 0.2 mg/m3 | 4.70 ml/L | 0.14 mmol/m3 | 0.259 mmol/m3 | 0.4 g/m3 |
| 90 | Praia da Pipa | Brazil | 9 | Pristine | 0.2 mg/m3 | 4.50 ml/L | 0.00 mmol/m3 | 0.100 mmol/m3 | 0.7 g/m3 |
| 91 | Santa Teresa | Costa Rica | 9 | Pristine | 0.2 mg/m3 | 4.66 ml/L | 0.02 mmol/m3 | 0.284 mmol/m3 | 0.3 g/m3 |
| 92 | Rincón | Puerto Rico | 9 | Pristine | 0.2 mg/m3 | 4.43 ml/L | 0.00 mmol/m3 | 0.002 mmol/m3 | 0.4 g/m3 |
| 93 | Boracay | Philippines | 9 | Pristine | 0.2 mg/m3 | 4.42 ml/L | 0.66 mmol/m3 | 0.002 mmol/m3 | 0.3 g/m3 |
| 94 | Keramas | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.60 ml/L | 0.13 mmol/m3 | 0.083 mmol/m3 | 0.3 g/m3 |
| 95 | Bingin | Indonesia | 9 | Pristine | 0.3 mg/m3 | 4.63 ml/L | 0.11 mmol/m3 | 0.085 mmol/m3 | 0.3 g/m3 |
| 96 | Padang Padang | Indonesia | 9 | Pristine | 0.3 mg/m3 | 4.63 ml/L | 0.10 mmol/m3 | 0.084 mmol/m3 | 0.3 g/m3 |
| 97 | Balangan | Indonesia | 9 | Pristine | 0.3 mg/m3 | 4.63 ml/L | 0.08 mmol/m3 | 0.080 mmol/m3 | 0.3 g/m3 |
| 98 | Uluwatu | Indonesia | 9 | Pristine | 0.3 mg/m3 | 4.63 ml/L | 0.08 mmol/m3 | 0.084 mmol/m3 | 0.3 g/m3 |
| 99 | Kuta Lombok | Indonesia | 9 | Pristine | 0.3 mg/m3 | 4.60 ml/L | 0.04 mmol/m3 | 0.075 mmol/m3 | 0.3 g/m3 |
| 100 | Deba | Spain | 9 | Pristine | 0.3 mg/m3 | 5.17 ml/L | 3.35 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 101 | San Sebastián | Spain | 9 | Pristine | 0.3 mg/m3 | 5.17 ml/L | 3.41 mmol/m3 | 0.001 mmol/m3 | 0.3 g/m3 |
| 102 | Zarautz | Spain | 9 | Pristine | 0.3 mg/m3 | 5.17 ml/L | 3.35 mmol/m3 | 0.000 mmol/m3 | 0.3 g/m3 |
| 103 | North Stradbroke Island | Australia | 9 | Pristine | 0.4 mg/m3 | 4.97 ml/L | 0.22 mmol/m3 | 0.164 mmol/m3 | 1.6 g/m3 |
| 104 | Jeju Jungmun | South Korea | 9 | Pristine | 0.4 mg/m3 | 4.64 ml/L | 0.04 mmol/m3 | 0.049 mmol/m3 | 0.4 g/m3 |
| 105 | Lennox Head | Australia | 9 | Pristine | 0.4 mg/m3 | 4.89 ml/L | 0.54 mmol/m3 | 0.193 mmol/m3 | 0.3 g/m3 |
| 106 | Ponta Preta | Cape Verde | 9 | Pristine | 0.4 mg/m3 | 4.59 ml/L | 0.00 mmol/m3 | 0.056 mmol/m3 | 0.3 g/m3 |
| 107 | Shonan | Japan | 9 | Pristine | 0.5 mg/m3 | 5.19 ml/L | 0.74 mmol/m3 | 0.331 mmol/m3 | 0.4 g/m3 |
| 108 | Huntington Beach | United States | 9 | Pristine | 0.5 mg/m3 | 5.21 ml/L | 0.07 mmol/m3 | 0.448 mmol/m3 | 0.5 g/m3 |
| 109 | The Wedge | United States | 9 | Pristine | 0.5 mg/m3 | 5.21 ml/L | 0.07 mmol/m3 | 0.448 mmol/m3 | 0.5 g/m3 |
| 110 | Somo | Spain | 9 | Pristine | 0.6 mg/m3 | 5.26 ml/L | 3.02 mmol/m3 | 0.001 mmol/m3 | 0.3 g/m3 |
| 111 | Avoca Beach | Australia | 9 | Pristine | 0.6 mg/m3 | 5.06 ml/L | 0.46 mmol/m3 | 0.205 mmol/m3 | 0.3 g/m3 |
| 112 | Maroubra | Australia | 9 | Pristine | 0.8 mg/m3 | 5.09 ml/L | 0.15 mmol/m3 | 0.186 mmol/m3 | 0.2 g/m3 |
| 113 | Freshwater West | United Kingdom | 9 | Pristine | 0.9 mg/m3 | 5.51 ml/L | 1.46 mmol/m3 | 0.001 mmol/m3 | 3.2 g/m3 |
| 114 | Huanchaco | Peru | 9 | Pristine | 1.1 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.6 g/m3 |
| 115 | Florianópolis | Brazil | 9 | Pristine | 1.1 mg/m3 | 5.36 ml/L | 0.02 mmol/m3 | 0.079 mmol/m3 | 1.9 g/m3 |
| 116 | Brimms Ness | United Kingdom | 9 | Pristine | 1.1 mg/m3 | 5.95 ml/L | 3.61 mmol/m3 | 0.124 mmol/m3 | 0.9 g/m3 |
| 117 | Dunnet Bay | United Kingdom | 9 | Pristine | 1.1 mg/m3 | 5.95 ml/L | 3.61 mmol/m3 | 0.124 mmol/m3 | 0.9 g/m3 |
| 118 | Thurso East | United Kingdom | 9 | Pristine | 1.1 mg/m3 | 5.96 ml/L | 3.80 mmol/m3 | 0.112 mmol/m3 | 0.9 g/m3 |
| 119 | Aganoa | Samoa | 10 | Pristine | 0.1 mg/m3 | 4.52 ml/L | 0.00 mmol/m3 | 0.271 mmol/m3 | 0.3 g/m3 |
| 120 | San José del Cabo | Mexico | 10 | Pristine | 0.1 mg/m3 | 4.45 ml/L | 0.00 mmol/m3 | 0.309 mmol/m3 | 0.3 g/m3 |
| 121 | Playa Grande | Costa Rica | 10 | Pristine | 0.1 mg/m3 | 4.69 ml/L | 0.05 mmol/m3 | 0.369 mmol/m3 | 0.3 g/m3 |
| 122 | Popoyo | Nicaragua | 10 | Pristine | 0.1 mg/m3 | 4.63 ml/L | 0.10 mmol/m3 | 0.281 mmol/m3 | 0.7 g/m3 |
| 123 | Itacaré | Brazil | 10 | Pristine | 0.1 mg/m3 | 4.63 ml/L | 0.02 mmol/m3 | 0.114 mmol/m3 | 2.4 g/m3 |
| 124 | Barra de la Cruz | Mexico | 10 | Pristine | 0.1 mg/m3 | 4.57 ml/L | 0.12 mmol/m3 | 0.329 mmol/m3 | 0.4 g/m3 |
| 125 | Taitung | Taiwan | 10 | Pristine | 0.2 mg/m3 | 4.51 ml/L | 0.02 mmol/m3 | 0.060 mmol/m3 | 1.8 g/m3 |
| 126 | Nosara | Costa Rica | 10 | Pristine | 0.2 mg/m3 | 4.68 ml/L | 0.04 mmol/m3 | 0.334 mmol/m3 | 0.4 g/m3 |
| 127 | North Malé Atoll | Maldives | 10 | Pristine | 0.3 mg/m3 | 4.51 ml/L | 0.01 mmol/m3 | 0.130 mmol/m3 | 0.7 g/m3 |
| 128 | Krui | Indonesia | 10 | Pristine | 0.3 mg/m3 | 4.71 ml/L | 0.09 mmol/m3 | 0.255 mmol/m3 | 0.6 g/m3 |
| 129 | Cabarete | Dominican Republic | 10 | Pristine | 0.3 mg/m3 | 4.48 ml/L | 0.01 mmol/m3 | 0.007 mmol/m3 | 1.1 g/m3 |
| 130 | Capbreton | France | 10 | Pristine | 0.3 mg/m3 | 5.17 ml/L | 3.37 mmol/m3 | 0.001 mmol/m3 | 1.9 g/m3 |
| 131 | La Gravière | France | 10 | Pristine | 0.3 mg/m3 | 5.17 ml/L | 3.36 mmol/m3 | 0.001 mmol/m3 | 1.9 g/m3 |
| 132 | Les Cavaliers | France | 10 | Pristine | 0.3 mg/m3 | 5.15 ml/L | 3.22 mmol/m3 | 0.001 mmol/m3 | 1.9 g/m3 |
| 133 | Hossegor | France | 10 | Pristine | 0.3 mg/m3 | 5.17 ml/L | 3.21 mmol/m3 | 0.001 mmol/m3 | 1.9 g/m3 |
| 134 | Seignosse | France | 10 | Pristine | 0.3 mg/m3 | 5.15 ml/L | 3.22 mmol/m3 | 0.001 mmol/m3 | 1.9 g/m3 |
| 135 | Hiriketiya | Sri Lanka | 10 | Pristine | 0.4 mg/m3 | 4.60 ml/L | 0.10 mmol/m3 | 0.195 mmol/m3 | 0.5 g/m3 |
| 136 | Arugam Bay | Sri Lanka | 10 | Pristine | 0.4 mg/m3 | 4.54 ml/L | 0.03 mmol/m3 | 0.183 mmol/m3 | 0.4 g/m3 |
| 137 | Weligama | Sri Lanka | 10 | Pristine | 0.4 mg/m3 | 4.60 ml/L | 0.10 mmol/m3 | 0.195 mmol/m3 | 0.6 g/m3 |
| 138 | Dakar Yoff | Senegal | 10 | Pristine | 0.5 mg/m3 | 4.54 ml/L | 0.01 mmol/m3 | 0.065 mmol/m3 | 0.5 g/m3 |
| 139 | Ngor/Ouakam | Senegal | 10 | Pristine | 0.5 mg/m3 | 4.54 ml/L | 0.01 mmol/m3 | 0.065 mmol/m3 | 0.5 g/m3 |
| 140 | Anglet | France | 10 | Pristine | 0.7 mg/m3 | 5.17 ml/L | 3.21 mmol/m3 | 0.001 mmol/m3 | 0.4 g/m3 |
| 141 | Biarritz | France | 10 | Pristine | 0.7 mg/m3 | 5.17 ml/L | 3.36 mmol/m3 | 0.001 mmol/m3 | 0.4 g/m3 |
| 142 | Guéthary | France | 10 | Pristine | 0.7 mg/m3 | 5.17 ml/L | 3.36 mmol/m3 | 0.001 mmol/m3 | 0.4 g/m3 |
| 143 | Scarborough Beach | Australia | 10 | Pristine | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 2.0 g/m3 |
| 144 | Newgale | United Kingdom | 10 | Pristine | 1.0 mg/m3 | 5.50 ml/L | 1.47 mmol/m3 | 0.001 mmol/m3 | 4.1 g/m3 |
| 145 | Whitesands Bay | United Kingdom | 10 | Pristine | 1.0 mg/m3 | 5.55 ml/L | 1.09 mmol/m3 | 0.001 mmol/m3 | 4.1 g/m3 |
| 146 | Bude Summerleaze | United Kingdom | 10 | Pristine | 1.1 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.2 g/m3 |
| 147 | Widemouth Bay | United Kingdom | 10 | Pristine | 1.1 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.2 g/m3 |
| 148 | Inch Beach | Ireland | 10 | Pristine | 1.3 mg/m3 | 5.74 ml/L | 3.60 mmol/m3 | 0.045 mmol/m3 | 0.5 g/m3 |
| 149 | Anchor Point | Morocco | 10 | Pristine | 1.4 mg/m3 | 5.38 ml/L | 0.19 mmol/m3 | 0.104 mmol/m3 | 2.0 g/m3 |
| 150 | Taghazout | Morocco | 10 | Pristine | 1.4 mg/m3 | 5.37 ml/L | 0.17 mmol/m3 | 0.102 mmol/m3 | 2.0 g/m3 |
| 151 | Mount Maunganui | New Zealand | 10 | Pristine | 1.7 mg/m3 | 5.87 ml/L | 0.21 mmol/m3 | 0.219 mmol/m3 | 2.9 g/m3 |
| 152 | Nias (Sorake) | Indonesia | 11 | Pristine | 0.3 mg/m3 | 4.56 ml/L | 0.01 mmol/m3 | 0.039 mmol/m3 | 3.7 g/m3 |
| 153 | Sayulita | Mexico | 11 | Pristine | 0.4 mg/m3 | 4.75 ml/L | 0.14 mmol/m3 | 0.277 mmol/m3 | 2.4 g/m3 |
| 154 | Lacanau | France | 11 | Pristine | 0.5 mg/m3 | 5.32 ml/L | 5.26 mmol/m3 | 0.003 mmol/m3 | 0.3 g/m3 |
| 155 | Santa Catalina | Panama | 11 | Pristine | 0.5 mg/m3 | 4.61 ml/L | 0.04 mmol/m3 | 0.213 mmol/m3 | 0.7 g/m3 |
| 156 | Leucate | France | 11 | Pristine | 0.8 mg/m3 | 4.94 ml/L | 0.39 mmol/m3 | 0.001 mmol/m3 | 3.2 g/m3 |
| 157 | Ichinomiya | Japan | 11 | Pristine | 1.0 mg/m3 | 4.99 ml/L | 0.49 mmol/m3 | 0.132 mmol/m3 | 1.7 g/m3 |
| 158 | Tsurigasaki Beach | Japan | 11 | Pristine | 1.0 mg/m3 | 4.99 ml/L | 0.49 mmol/m3 | 0.132 mmol/m3 | 1.7 g/m3 |
| 159 | G-Land | Indonesia | 11 | Pristine | 1.1 mg/m3 | 4.76 ml/L | 0.03 mmol/m3 | 0.109 mmol/m3 | 0.8 g/m3 |
| 160 | Ubatuba | Brazil | 11 | Pristine | 1.2 mg/m3 | 5.03 ml/L | 0.04 mmol/m3 | 0.128 mmol/m3 | 2.2 g/m3 |
| 161 | Ericeira | Portugal | 11 | Pristine | 1.2 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.1 g/m3 |
| 162 | Ribeira d'Ilhas | Portugal | 11 | Pristine | 1.2 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.1 g/m3 |
| 163 | Lakey Peak | Indonesia | 11 | Pristine | 1.2 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.3 g/m3 |
| 164 | Pantín | Spain | 11 | Pristine | 1.3 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.4 g/m3 |
| 165 | Fraserburgh | United Kingdom | 11 | Pristine | 1.5 mg/m3 | 6.03 ml/L | 4.34 mmol/m3 | 0.107 mmol/m3 | 0.5 g/m3 |
| 166 | Garopaba | Brazil | 11 | Pristine | 1.6 mg/m3 | 5.40 ml/L | 0.06 mmol/m3 | 0.080 mmol/m3 | 3.1 g/m3 |
| 167 | Kimmeridge Bay | United Kingdom | 11 | Pristine | 1.7 mg/m3 | 5.46 ml/L | 0.43 mmol/m3 | 0.002 mmol/m3 | 2.3 g/m3 |
| 168 | Cloudbreak | Fiji | 12 | Pristine | 0.1 mg/m3 | 4.70 ml/L | 0.00 mmol/m3 | 0.203 mmol/m3 | 5.2 g/m3 |
| 169 | Restaurants (Namotu) | Fiji | 12 | Pristine | 0.1 mg/m3 | 4.70 ml/L | 0.00 mmol/m3 | 0.203 mmol/m3 | 5.2 g/m3 |
| 170 | Laniakea | United States | 12 | Pristine | 0.2 mg/m3 | 4.67 ml/L | 0.00 mmol/m3 | 0.191 mmol/m3 | 5.1 g/m3 |
| 171 | Pipeline | United States | 12 | Pristine | 0.2 mg/m3 | 4.67 ml/L | 0.00 mmol/m3 | 0.191 mmol/m3 | 5.1 g/m3 |
| 172 | Sunset Beach | United States | 12 | Pristine | 0.2 mg/m3 | 4.67 ml/L | 0.00 mmol/m3 | 0.191 mmol/m3 | 5.1 g/m3 |
| 173 | Waimea Bay | United States | 12 | Pristine | 0.2 mg/m3 | 4.67 ml/L | 0.00 mmol/m3 | 0.191 mmol/m3 | 5.1 g/m3 |
| 174 | Bull Bay | Jamaica | 12 | Pristine | 0.2 mg/m3 | 4.40 ml/L | 0.01 mmol/m3 | 0.005 mmol/m3 | 4.3 g/m3 |
| 175 | El Gouna | Egypt | 12 | Pristine | 0.3 mg/m3 | 4.46 ml/L | 0.00 mmol/m3 | 0.013 mmol/m3 | 4.6 g/m3 |
| 176 | Playa Hermosa | Costa Rica | 12 | Pristine | 0.6 mg/m3 | 4.64 ml/L | 0.02 mmol/m3 | 0.340 mmol/m3 | 0.5 g/m3 |
| 177 | Tiree | United Kingdom | 12 | Pristine | 0.9 mg/m3 | 5.78 ml/L | 5.67 mmol/m3 | 0.179 mmol/m3 | 0.8 g/m3 |
| 178 | Bocas del Toro | Panama | 12 | Pristine | 1.1 mg/m3 | 4.51 ml/L | 0.77 mmol/m3 | 0.001 mmol/m3 | 0.8 g/m3 |
| 179 | Medewi | Indonesia | 12 | Pristine | 1.2 mg/m3 | 4.64 ml/L | 0.03 mmol/m3 | 0.105 mmol/m3 | 1.2 g/m3 |
| 180 | Maresias | Brazil | 12 | Pristine | 1.5 mg/m3 | 5.06 ml/L | 0.03 mmol/m3 | 0.140 mmol/m3 | 1.2 g/m3 |
| 181 | Narrabeen | Australia | 12 | Pristine | 1.6 mg/m3 | 5.09 ml/L | 0.15 mmol/m3 | 0.186 mmol/m3 | 0.3 g/m3 |
| 182 | Dee Why | Australia | 12 | Pristine | 1.6 mg/m3 | 5.09 ml/L | 0.15 mmol/m3 | 0.186 mmol/m3 | 0.3 g/m3 |
| 183 | Cannon Beach | United States | 12 | Pristine | 1.6 mg/m3 | 5.87 ml/L | 1.20 mmol/m3 | 0.412 mmol/m3 | 2.4 g/m3 |
| 184 | Dover | United Kingdom | 12 | Pristine | 1.8 mg/m3 | 5.33 ml/L | 0.16 mmol/m3 | 0.066 mmol/m3 | 3.1 g/m3 |
| 185 | Bournemouth | United Kingdom | 12 | Pristine | 1.9 mg/m3 | 5.42 ml/L | 0.38 mmol/m3 | 0.002 mmol/m3 | 2.6 g/m3 |
| 186 | Brighton | United Kingdom | 12 | Pristine | 1.9 mg/m3 | 5.36 ml/L | 0.43 mmol/m3 | 0.008 mmol/m3 | 2.6 g/m3 |
| 187 | Easkey | Ireland | 12 | Pristine | 2.0 mg/m3 | 5.74 ml/L | 3.36 mmol/m3 | 0.033 mmol/m3 | 0.5 g/m3 |
| 188 | Reykjanes Peninsula | Iceland | 13 | Pristine | 0.4 mg/m3 | 6.29 ml/L | 8.14 mmol/m3 | 0.514 mmol/m3 | 0.7 g/m3 |
| 189 | Puerto Escondido | Mexico | 13 | Pristine | 0.6 mg/m3 | 4.55 ml/L | 0.76 mmol/m3 | 0.391 mmol/m3 | 0.6 g/m3 |
| 190 | Pavones | Costa Rica | 13 | Pristine | 0.9 mg/m3 | 4.64 ml/L | 0.13 mmol/m3 | 0.202 mmol/m3 | 3.0 g/m3 |
| 191 | Mui Ne | Vietnam | 13 | Pristine | 0.9 mg/m3 | 4.76 ml/L | 3.33 mmol/m3 | 0.001 mmol/m3 | 0.5 g/m3 |
| 192 | Jeffreys Bay | South Africa | 13 | Pristine | 1.1 mg/m3 | 5.48 ml/L | 3.58 mmol/m3 | 0.380 mmol/m3 | 0.4 g/m3 |
| 193 | Cimaja | Indonesia | 13 | Pristine | 1.3 mg/m3 | 4.80 ml/L | 0.07 mmol/m3 | 0.214 mmol/m3 | 1.0 g/m3 |
| 194 | Rincon | United States | 13 | Pristine | 1.4 mg/m3 | 5.25 ml/L | 0.02 mmol/m3 | 0.448 mmol/m3 | 1.3 g/m3 |
| 195 | Saquarema | Brazil | 13 | Pristine | 1.5 mg/m3 | 4.94 ml/L | 0.03 mmol/m3 | 0.147 mmol/m3 | 1.6 g/m3 |
| 196 | Manorbier | United Kingdom | 13 | Pristine | 1.6 mg/m3 | 5.48 ml/L | 1.85 mmol/m3 | 0.001 mmol/m3 | 3.8 g/m3 |
| 197 | Bracklesham Bay | United Kingdom | 13 | Pristine | 2.1 mg/m3 | 5.45 ml/L | 0.54 mmol/m3 | 0.006 mmol/m3 | 3.5 g/m3 |
| 198 | Torres | Brazil | 13 | Pristine | 2.2 mg/m3 | 5.55 ml/L | 0.05 mmol/m3 | 0.065 mmol/m3 | 3.1 g/m3 |
| 199 | Imsouane | Morocco | 13 | Pristine | 2.3 mg/m3 | 5.39 ml/L | 0.56 mmol/m3 | 0.127 mmol/m3 | 1.0 g/m3 |
| 200 | Sandycove | Ireland | 13 | Pristine | 2.4 mg/m3 | 5.89 ml/L | 1.23 mmol/m3 | 0.117 mmol/m3 | 3.8 g/m3 |
| 201 | Bamburgh | United Kingdom | 13 | Pristine | 2.6 mg/m3 | 5.97 ml/L | 2.24 mmol/m3 | 0.007 mmol/m3 | 2.3 g/m3 |
| 202 | Lanuza | Philippines | 14 | Pristine | 0.1 mg/m3 | 4.46 ml/L | 0.06 mmol/m3 | 0.100 mmol/m3 | 7.8 g/m3 |
| 203 | Santa Cruz | Portugal | 14 | Pristine | 1.7 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 204 | Mavericks | United States | 14 | Pristine | 2.1 mg/m3 | 6.21 ml/L | 2.10 mmol/m3 | 0.602 mmol/m3 | 0.8 g/m3 |
| 205 | Sandsend | United Kingdom | 14 | Pristine | 2.5 mg/m3 | 5.81 ml/L | 0.67 mmol/m3 | 0.270 mmol/m3 | 2.0 g/m3 |
| 206 | Runswick Bay | United Kingdom | 14 | Pristine | 2.5 mg/m3 | 5.81 ml/L | 0.67 mmol/m3 | 0.270 mmol/m3 | 2.0 g/m3 |
| 207 | Seaburn | United Kingdom | 14 | Pristine | 2.8 mg/m3 | 5.92 ml/L | 1.10 mmol/m3 | 0.281 mmol/m3 | 0.7 g/m3 |
| 208 | Pascuales | Mexico | 15 | Pristine | 0.9 mg/m3 | 4.60 ml/L | 0.56 mmol/m3 | 0.331 mmol/m3 | 2.3 g/m3 |
| 209 | Punta de Mita | Mexico | 15 | Pristine | 1.1 mg/m3 | 4.76 ml/L | 0.12 mmol/m3 | 0.282 mmol/m3 | 3.9 g/m3 |
| 210 | Pichilemu | Chile | 15 | Pristine | 1.5 mg/m3 | 5.85 ml/L | 2.84 mmol/m3 | 0.891 mmol/m3 | 0.4 g/m3 |
| 211 | Sebastian Inlet | United States | 15 | Pristine | 1.5 mg/m3 | 4.47 ml/L | 0.01 mmol/m3 | 0.001 mmol/m3 | 2.7 g/m3 |
| 212 | Compton Bay | United Kingdom | 15 | Pristine | 2.5 mg/m3 | 5.41 ml/L | 0.40 mmol/m3 | 0.004 mmol/m3 | 4.2 g/m3 |
| 213 | Troncones | Mexico | 16 | Clean | 0.6 mg/m3 | 4.98 ml/L | 0.87 mmol/m3 | 0.230 mmol/m3 | 9.2 g/m3 |
| 214 | Wrightsville Beach | United States | 16 | Clean | 1.2 mg/m3 | 4.70 ml/L | 1.54 mmol/m3 | 0.002 mmol/m3 | 6.2 g/m3 |
| 215 | Santa Cruz | United States | 16 | Clean | 2.2 mg/m3 | 5.78 ml/L | 2.38 mmol/m3 | 0.605 mmol/m3 | 0.6 g/m3 |
| 216 | Filey | United Kingdom | 16 | Clean | 3.3 mg/m3 | 5.68 ml/L | 0.06 mmol/m3 | 0.158 mmol/m3 | 3.0 g/m3 |
| 217 | Tamarin Bay | Mauritius | 17 | Clean | 0.1 mg/m3 | 4.81 ml/L | 0.00 mmol/m3 | 0.160 mmol/m3 | 14.9 g/m3 |
| 218 | Baisha Bay | Taiwan | 17 | Clean | 1.6 mg/m3 | 4.64 ml/L | 0.04 mmol/m3 | 0.007 mmol/m3 | 6.8 g/m3 |
| 219 | Piha | New Zealand | 17 | Clean | 1.7 mg/m3 | 5.83 ml/L | 0.03 mmol/m3 | 0.193 mmol/m3 | 13.1 g/m3 |
| 220 | Varkala | India | 17 | Clean | 1.9 mg/m3 | 4.67 ml/L | 0.06 mmol/m3 | 0.168 mmol/m3 | 3.4 g/m3 |
| 221 | Angourie | Australia | 17 | Clean | 2.8 mg/m3 | 4.97 ml/L | 0.28 mmol/m3 | 0.176 mmol/m3 | 0.5 g/m3 |
| 222 | Tynemouth | United Kingdom | 17 | Clean | 3.6 mg/m3 | 5.98 ml/L | 0.68 mmol/m3 | 0.212 mmol/m3 | 2.6 g/m3 |
| 223 | Jericoacoara | Brazil | 18 | Clean | 0.3 mg/m3 | 4.50 ml/L | 0.01 mmol/m3 | 0.104 mmol/m3 | 12.6 g/m3 |
| 224 | Máncora | Peru | 18 | Clean | 1.6 mg/m3 | 4.99 ml/L | 0.95 mmol/m3 | 0.471 mmol/m3 | 4.8 g/m3 |
| 225 | Saunton Sands | United Kingdom | 18 | Clean | 2.7 mg/m3 | 5.63 ml/L | 3.76 mmol/m3 | 0.048 mmol/m3 | 4.4 g/m3 |
| 226 | Woolacombe | United Kingdom | 18 | Clean | 2.7 mg/m3 | 5.63 ml/L | 3.76 mmol/m3 | 0.048 mmol/m3 | 4.4 g/m3 |
| 227 | Croyde | United Kingdom | 18 | Clean | 2.7 mg/m3 | 5.63 ml/L | 3.76 mmol/m3 | 0.045 mmol/m3 | 4.4 g/m3 |
| 228 | Joss Bay | United Kingdom | 18 | Clean | 2.9 mg/m3 | 5.31 ml/L | 0.06 mmol/m3 | 0.042 mmol/m3 | 6.3 g/m3 |
| 229 | Praia do Guincho | Portugal | 18 | Clean | 3.3 mg/m3 | 5.54 ml/L | 0.12 mmol/m3 | 0.020 mmol/m3 | 6.3 g/m3 |
| 230 | Carcavelos | Portugal | 18 | Clean | 3.3 mg/m3 | 5.53 ml/L | 0.12 mmol/m3 | 0.019 mmol/m3 | 6.3 g/m3 |
| 231 | Costa da Caparica | Portugal | 18 | Clean | 3.3 mg/m3 | 5.53 ml/L | 0.12 mmol/m3 | 0.019 mmol/m3 | 6.3 g/m3 |
| 232 | Cayton Bay | United Kingdom | 18 | Clean | 3.5 mg/m3 | 5.81 ml/L | 0.67 mmol/m3 | 0.272 mmol/m3 | 4.0 g/m3 |
| 233 | Scarborough | United Kingdom | 18 | Clean | 3.5 mg/m3 | 5.81 ml/L | 0.67 mmol/m3 | 0.272 mmol/m3 | 4.0 g/m3 |
| 234 | Saltburn-by-the-Sea | United Kingdom | 18 | Clean | 3.6 mg/m3 | 5.91 ml/L | 1.16 mmol/m3 | 0.284 mmol/m3 | 2.3 g/m3 |
| 235 | Putsborough | United Kingdom | 19 | Clean | 2.7 mg/m3 | 5.62 ml/L | 3.81 mmol/m3 | 0.053 mmol/m3 | 4.4 g/m3 |
| 236 | Llangennith | United Kingdom | 19 | Clean | 2.9 mg/m3 | 5.47 ml/L | 2.22 mmol/m3 | 0.002 mmol/m3 | 5.6 g/m3 |
| 237 | Matosinhos | Portugal | 19 | Clean | 3.7 mg/m3 | 5.66 ml/L | 2.65 mmol/m3 | 0.183 mmol/m3 | 0.7 g/m3 |
| 238 | Unstad | Norway | 21 | Clean | 5.7 mg/m3 | 6.24 ml/L | 0.79 mmol/m3 | 0.070 mmol/m3 | 0.4 g/m3 |
| 239 | Caswell Bay | United Kingdom | 23 | Clean | 3.1 mg/m3 | 5.63 ml/L | 3.76 mmol/m3 | 0.048 mmol/m3 | 10.0 g/m3 |
| 240 | Langland Bay | United Kingdom | 23 | Clean | 3.1 mg/m3 | 5.63 ml/L | 3.76 mmol/m3 | 0.048 mmol/m3 | 10.0 g/m3 |
| 241 | New Smyrna Beach | United States | 23 | Clean | 4.0 mg/m3 | 4.53 ml/L | 0.24 mmol/m3 | 0.001 mmol/m3 | 2.7 g/m3 |
| 242 | La Union (San Juan) | Philippines | 23 | Clean | 4.1 mg/m3 | 4.56 ml/L | 0.23 mmol/m3 | 0.000 mmol/m3 | 1.7 g/m3 |
| 243 | Dakhla | Morocco | 23 | Clean | 4.5 mg/m3 | 5.07 ml/L | 0.01 mmol/m3 | 0.073 mmol/m3 | 2.9 g/m3 |
| 244 | Strandhill | Ireland | 23 | Clean | 5.0 mg/m3 | 5.74 ml/L | 3.36 mmol/m3 | 0.033 mmol/m3 | 0.6 g/m3 |
| 245 | Rockaway Beach | United States | 23 | Clean | 5.0 mg/m3 | 5.52 ml/L | 0.71 mmol/m3 | 0.190 mmol/m3 | 1.0 g/m3 |
| 246 | Lobitos | Peru | 24 | Clean | 2.3 mg/m3 | 4.80 ml/L | 2.91 mmol/m3 | 0.645 mmol/m3 | 3.5 g/m3 |
| 247 | Eoropie | United Kingdom | 25 | Clean | 4.0 mg/m3 | 5.92 ml/L | 7.43 mmol/m3 | 0.333 mmol/m3 | 1.2 g/m3 |
| 248 | Outer Banks | United States | 25 | Clean | 4.7 mg/m3 | 5.03 ml/L | 0.55 mmol/m3 | 0.001 mmol/m3 | 4.1 g/m3 |
| 249 | Nihiwatu | Indonesia | 25 | Clean | 4.8 mg/m3 | 4.64 ml/L | 0.01 mmol/m3 | 0.119 mmol/m3 | 0.4 g/m3 |
| 250 | Muizenberg | South Africa | 25 | Clean | 6.3 mg/m3 | 6.24 ml/L | 0.66 mmol/m3 | 0.287 mmol/m3 | 0.6 g/m3 |
| 251 | Cocoa Beach | United States | 26 | Clean | 2.9 mg/m3 | 4.46 ml/L | 0.03 mmol/m3 | 0.000 mmol/m3 | 12.2 g/m3 |
| 252 | Kovalam | India | 26 | Clean | 4.3 mg/m3 | 4.59 ml/L | 0.90 mmol/m3 | 0.246 mmol/m3 | 2.2 g/m3 |
| 253 | Chicama | Peru | 28 | Clean | 2.1 mg/m3 | 4.80 ml/L | 6.17 mmol/m3 | 1.035 mmol/m3 | 2.0 g/m3 |
| 254 | Elands Bay | South Africa | 29 | Clean | 7.1 mg/m3 | 6.28 ml/L | 0.46 mmol/m3 | 0.397 mmol/m3 | 1.4 g/m3 |
| 255 | Lahinch | Ireland | 30 | Clean | 1.0 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 18.6 g/m3 |
| 256 | Bloubergstrand | South Africa | 30 | Clean | 7.7 mg/m3 | 6.18 ml/L | 0.83 mmol/m3 | 0.327 mmol/m3 | 0.7 g/m3 |
| 257 | Raglan | New Zealand | 33 | Moderate | 1.4 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 27.0 g/m3 |
| 258 | Rest Bay | United Kingdom | 35 | Moderate | 5.4 mg/m3 | 5.63 ml/L | 4.34 mmol/m3 | 0.061 mmol/m3 | 21.2 g/m3 |
| 259 | Folly Beach | United States | 35 | Moderate | 6.3 mg/m3 | 4.58 ml/L | 2.08 mmol/m3 | 0.001 mmol/m3 | 5.3 g/m3 |
| 260 | Ocean Beach SF | United States | 36 | Moderate | 6.1 mg/m3 | 6.02 ml/L | 1.94 mmol/m3 | 0.622 mmol/m3 | 12.5 g/m3 |
| 261 | Essaouira | Morocco | 39 | Moderate | 8.8 mg/m3 | 5.34 ml/L | 0.07 mmol/m3 | 0.073 mmol/m3 | 7.0 g/m3 |
| 262 | Sidi Kaouki | Morocco | 40 | Moderate | 8.8 mg/m3 | 5.36 ml/L | 0.27 mmol/m3 | 0.098 mmol/m3 | 7.0 g/m3 |
| 263 | Portrush | United Kingdom | 44 | Moderate | 17.8 mg/m3 | 5.77 ml/L | 4.37 mmol/m3 | 0.102 mmol/m3 | 3.8 g/m3 |
| 264 | Bolinas | United States | 45 | Moderate | 8.3 mg/m3 | 6.02 ml/L | 1.94 mmol/m3 | 0.622 mmol/m3 | 21.8 g/m3 |
| 265 | Tybee Island | United States | 49 | Moderate | 9.8 mg/m3 | 4.58 ml/L | 2.09 mmol/m3 | 0.000 mmol/m3 | 7.8 g/m3 |
| 266 | Bundoran | Ireland | 56 | Elevated | 7.1 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.0 g/m3 |
| 267 | Mullaghmore Head | Ireland | 56 | Elevated | 7.1 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.0 g/m3 |
#1El Quemao
Spain
2
PristineChlorophyll
0.2
Dissolved O₂
-
Nitrate
-
#2Montañita
Ecuador
3
PristineChlorophyll
0.3
Dissolved O₂
-
Nitrate
-
#3Hoddevik
Norway
4
PristineChlorophyll
0.3
Dissolved O₂
5.96
Nitrate
1.80
#4Shipwreck Bay
New Zealand
4
PristineChlorophyll
0.4
Dissolved O₂
5.94
Nitrate
0.17
#5Dungeons
South Africa
4
PristineChlorophyll
0.4
Dissolved O₂
6.09
Nitrate
0.75
#6Kommetjie
South Africa
4
PristineChlorophyll
0.4
Dissolved O₂
6.09
Nitrate
0.75
#7Bells Beach
Australia
4
PristineChlorophyll
0.5
Dissolved O₂
5.80
Nitrate
0.01
#8Torquay
Australia
4
PristineChlorophyll
0.5
Dissolved O₂
5.80
Nitrate
0.01
#9Chapel Porth
United Kingdom
4
PristineChlorophyll
0.5
Dissolved O₂
5.62
Nitrate
0.37
#10Porthleven
United Kingdom
4
PristineChlorophyll
0.5
Dissolved O₂
5.62
Nitrate
0.36
#11Porthtowan
United Kingdom
4
PristineChlorophyll
0.5
Dissolved O₂
5.62
Nitrate
0.36
#12Gwithian
United Kingdom
4
PristineChlorophyll
0.5
Dissolved O₂
5.64
Nitrate
0.30
#13Porthmeor
United Kingdom
4
PristineChlorophyll
0.5
Dissolved O₂
5.64
Nitrate
0.30
#14Praa Sands
United Kingdom
4
PristineChlorophyll
0.5
Dissolved O₂
5.64
Nitrate
0.30
#15Phillip Island
Australia
4
PristineChlorophyll
0.5
Dissolved O₂
5.81
Nitrate
0.02
#16Gracetown
Australia
5
PristineChlorophyll
0.2
Dissolved O₂
5.31
Nitrate
0.01
#17Lagos
Portugal
5
PristineChlorophyll
0.5
Dissolved O₂
5.38
Nitrate
0.23
#18Praia do Amado
Portugal
5
PristineChlorophyll
0.5
Dissolved O₂
5.45
Nitrate
0.26
#19Sagres
Portugal
5
PristineChlorophyll
0.5
Dissolved O₂
5.45
Nitrate
0.26
#20Constantine Bay
United Kingdom
5
PristineChlorophyll
0.6
Dissolved O₂
5.62
Nitrate
0.36
#21Crantock
United Kingdom
5
PristineChlorophyll
0.6
Dissolved O₂
5.62
Nitrate
0.36
#22Lusty Glaze
United Kingdom
5
PristineChlorophyll
0.6
Dissolved O₂
5.62
Nitrate
0.36
#23Newquay/Fistral
United Kingdom
5
PristineChlorophyll
0.6
Dissolved O₂
5.62
Nitrate
0.36
#24Perranporth
United Kingdom
5
PristineChlorophyll
0.6
Dissolved O₂
5.62
Nitrate
0.36
#25Watergate Bay
United Kingdom
5
PristineChlorophyll
0.6
Dissolved O₂
5.62
Nitrate
0.36
#26Sennen Cove
United Kingdom
5
PristineChlorophyll
0.7
Dissolved O₂
5.64
Nitrate
0.29
#27Tarifa
Spain
6
PristineChlorophyll
0.3
Dissolved O₂
5.19
Nitrate
0.14
#28El Palmar
Spain
6
PristineChlorophyll
0.3
Dissolved O₂
5.07
Nitrate
0.03
#29Razo
Spain
6
PristineChlorophyll
0.4
Dissolved O₂
5.71
Nitrate
2.16
#30Mirleft
Morocco
6
PristineChlorophyll
0.5
Dissolved O₂
5.42
Nitrate
0.17
#31Pacific City
United States
6
PristineChlorophyll
0.7
Dissolved O₂
-
Nitrate
-
#32Arrifana
Portugal
6
PristineChlorophyll
0.7
Dissolved O₂
5.47
Nitrate
0.26
#33Bantham
United Kingdom
6
PristineChlorophyll
0.8
Dissolved O₂
5.65
Nitrate
0.46
#34Bigbury-on-Sea
United Kingdom
6
PristineChlorophyll
0.8
Dissolved O₂
5.65
Nitrate
0.46
#35Baleal
Portugal
6
PristineChlorophyll
0.9
Dissolved O₂
5.72
Nitrate
0.85
#36Nazaré
Portugal
6
PristineChlorophyll
0.9
Dissolved O₂
5.75
Nitrate
0.69
#37Peniche/Supertubos
Portugal
6
PristineChlorophyll
0.9
Dissolved O₂
5.72
Nitrate
0.85
#38Rhodes
Greece
7
PristineChlorophyll
0.1
Dissolved O₂
4.66
Nitrate
0.01
#39Lanzarote/Famara
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.91
Nitrate
0.00
#40Oludeniz
Turkey
7
PristineChlorophyll
0.1
Dissolved O₂
4.71
Nitrate
0.01
#41Tenerife
Spain
7
PristineChlorophyll
0.2
Dissolved O₂
4.77
Nitrate
0.00
#42El Confital
Spain
7
PristineChlorophyll
0.2
Dissolved O₂
4.82
Nitrate
0.00
#43Gran Canaria/El Confital
Spain
7
PristineChlorophyll
0.2
Dissolved O₂
4.81
Nitrate
0.00
#44Noosa
Australia
7
PristineChlorophyll
0.2
Dissolved O₂
4.95
Nitrate
0.01
#45Fuerteventura/Cotillo
Spain
7
PristineChlorophyll
0.2
Dissolved O₂
4.90
Nitrate
0.00
#46La Santa
Spain
7
PristineChlorophyll
0.2
Dissolved O₂
4.92
Nitrate
0.00
#47Vliho Bay
Greece
7
PristineChlorophyll
0.2
Dissolved O₂
4.75
Nitrate
0.01
#48Durban Bay of Plenty
South Africa
7
PristineChlorophyll
0.2
Dissolved O₂
4.97
Nitrate
0.02
#49Merewether
Australia
7
PristineChlorophyll
0.3
Dissolved O₂
5.08
Nitrate
0.35
#50Tramore
Ireland
7
PristineChlorophyll
0.6
Dissolved O₂
5.76
Nitrate
2.26
#51Harlyn Bay
United Kingdom
7
PristineChlorophyll
0.7
Dissolved O₂
5.48
Nitrate
1.37
#52Polzeath
United Kingdom
7
PristineChlorophyll
0.7
Dissolved O₂
5.48
Nitrate
1.37
#53La Torche
France
7
PristineChlorophyll
0.8
Dissolved O₂
5.46
Nitrate
1.32
#54Blacks Beach
United States
7
PristineChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#55La Jolla Cove
United States
7
PristineChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#56Tanegashima
Japan
8
PristineChlorophyll
0.1
Dissolved O₂
4.54
Nitrate
0.00
#57Saint-Leu
Réunion
8
PristineChlorophyll
0.1
Dissolved O₂
4.81
Nitrate
0.00
#58Bathsheba
Barbados
8
PristineChlorophyll
0.1
Dissolved O₂
4.45
Nitrate
0.00
#59Mentawai Islands
Indonesia
8
PristineChlorophyll
0.1
Dissolved O₂
4.69
Nitrate
0.02
#60Miyazaki
Japan
8
PristineChlorophyll
0.1
Dissolved O₂
4.56
Nitrate
0.01
#61Margaret River
Australia
8
PristineChlorophyll
0.2
Dissolved O₂
-
Nitrate
-
#62Simeulue
Indonesia
8
PristineChlorophyll
0.2
Dissolved O₂
4.55
Nitrate
0.01
#63Anakao
Madagascar
8
PristineChlorophyll
0.2
Dissolved O₂
4.77
Nitrate
0.01
#64Tofo
Mozambique
8
PristineChlorophyll
0.2
Dissolved O₂
4.75
Nitrate
0.00
#65Trestles
United States
8
PristineChlorophyll
0.2
Dissolved O₂
5.16
Nitrate
0.05
#66Canggu
Indonesia
8
PristineChlorophyll
0.2
Dissolved O₂
4.63
Nitrate
0.11
#67Desert Point
Indonesia
8
PristineChlorophyll
0.2
Dissolved O₂
4.60
Nitrate
0.02
#68Niijima
Japan
8
PristineChlorophyll
0.2
Dissolved O₂
4.65
Nitrate
0.07
#69Izu Peninsula
Japan
8
PristineChlorophyll
0.2
Dissolved O₂
4.75
Nitrate
0.06
#70Mundaka
Spain
8
PristineChlorophyll
0.3
Dissolved O₂
5.22
Nitrate
3.13
#71Getxo
Spain
8
PristineChlorophyll
0.3
Dissolved O₂
5.26
Nitrate
3.04
#72Sopelana
Spain
8
PristineChlorophyll
0.3
Dissolved O₂
5.24
Nitrate
3.19
#73Burleigh Heads
Australia
8
PristineChlorophyll
0.4
Dissolved O₂
4.96
Nitrate
0.10
#74Kirra
Australia
8
PristineChlorophyll
0.4
Dissolved O₂
4.96
Nitrate
0.10
#75Snapper Rocks
Australia
8
PristineChlorophyll
0.4
Dissolved O₂
4.96
Nitrate
0.10
#76Salinas
Spain
8
PristineChlorophyll
0.5
Dissolved O₂
5.34
Nitrate
2.46
#77Machrihanish
United Kingdom
8
PristineChlorophyll
1.2
Dissolved O₂
5.91
Nitrate
1.97
#78Gordon's Bay
South Africa
8
PristineChlorophyll
1.6
Dissolved O₂
6.17
Nitrate
0.40
#79Teahupo'o
French Polynesia
9
PristineChlorophyll
0.0
Dissolved O₂
4.61
Nitrate
0.00
#80Siargao/Cloud 9
Philippines
9
PristineChlorophyll
0.1
Dissolved O₂
4.44
Nitrate
0.00
#81Jaws/Pe'ahi
United States
9
PristineChlorophyll
0.1
Dissolved O₂
4.60
Nitrate
0.00
#82Hookipa
United States
9
PristineChlorophyll
0.1
Dissolved O₂
4.65
Nitrate
0.00
#83Honolua Bay
United States
9
PristineChlorophyll
0.1
Dissolved O₂
4.64
Nitrate
0.00
#84Fernando de Noronha
Brazil
9
PristineChlorophyll
0.1
Dissolved O₂
4.63
Nitrate
0.01
#85Baler
Philippines
9
PristineChlorophyll
0.1
Dissolved O₂
4.46
Nitrate
0.01
#86El Sunzal
El Salvador
9
PristineChlorophyll
0.1
Dissolved O₂
4.73
Nitrate
0.18
#87Thulusdhoo
Maldives
9
PristineChlorophyll
0.2
Dissolved O₂
4.50
Nitrate
0.01
#88Le Moule
Guadeloupe
9
PristineChlorophyll
0.2
Dissolved O₂
4.47
Nitrate
0.00
#89El Tunco
El Salvador
9
PristineChlorophyll
0.2
Dissolved O₂
4.70
Nitrate
0.14
#90Praia da Pipa
Brazil
9
PristineChlorophyll
0.2
Dissolved O₂
4.50
Nitrate
0.00
#91Santa Teresa
Costa Rica
9
PristineChlorophyll
0.2
Dissolved O₂
4.66
Nitrate
0.02
#92Rincón
Puerto Rico
9
PristineChlorophyll
0.2
Dissolved O₂
4.43
Nitrate
0.00
#93Boracay
Philippines
9
PristineChlorophyll
0.2
Dissolved O₂
4.42
Nitrate
0.66
#94Keramas
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.60
Nitrate
0.13
#95Bingin
Indonesia
9
PristineChlorophyll
0.3
Dissolved O₂
4.63
Nitrate
0.11
#96Padang Padang
Indonesia
9
PristineChlorophyll
0.3
Dissolved O₂
4.63
Nitrate
0.10
#97Balangan
Indonesia
9
PristineChlorophyll
0.3
Dissolved O₂
4.63
Nitrate
0.08
#98Uluwatu
Indonesia
9
PristineChlorophyll
0.3
Dissolved O₂
4.63
Nitrate
0.08
#99Kuta Lombok
Indonesia
9
PristineChlorophyll
0.3
Dissolved O₂
4.60
Nitrate
0.04
#100Deba
Spain
9
PristineChlorophyll
0.3
Dissolved O₂
5.17
Nitrate
3.35
#101San Sebastián
Spain
9
PristineChlorophyll
0.3
Dissolved O₂
5.17
Nitrate
3.41
#102Zarautz
Spain
9
PristineChlorophyll
0.3
Dissolved O₂
5.17
Nitrate
3.35
#103North Stradbroke Island
Australia
9
PristineChlorophyll
0.4
Dissolved O₂
4.97
Nitrate
0.22
#104Jeju Jungmun
South Korea
9
PristineChlorophyll
0.4
Dissolved O₂
4.64
Nitrate
0.04
#105Lennox Head
Australia
9
PristineChlorophyll
0.4
Dissolved O₂
4.89
Nitrate
0.54
#106Ponta Preta
Cape Verde
9
PristineChlorophyll
0.4
Dissolved O₂
4.59
Nitrate
0.00
#107Shonan
Japan
9
PristineChlorophyll
0.5
Dissolved O₂
5.19
Nitrate
0.74
#108Huntington Beach
United States
9
PristineChlorophyll
0.5
Dissolved O₂
5.21
Nitrate
0.07
#109The Wedge
United States
9
PristineChlorophyll
0.5
Dissolved O₂
5.21
Nitrate
0.07
#110Somo
Spain
9
PristineChlorophyll
0.6
Dissolved O₂
5.26
Nitrate
3.02
#111Avoca Beach
Australia
9
PristineChlorophyll
0.6
Dissolved O₂
5.06
Nitrate
0.46
#112Maroubra
Australia
9
PristineChlorophyll
0.8
Dissolved O₂
5.09
Nitrate
0.15
#113Freshwater West
United Kingdom
9
PristineChlorophyll
0.9
Dissolved O₂
5.51
Nitrate
1.46
#114Huanchaco
Peru
9
PristineChlorophyll
1.1
Dissolved O₂
-
Nitrate
-
#115Florianópolis
Brazil
9
PristineChlorophyll
1.1
Dissolved O₂
5.36
Nitrate
0.02
#116Brimms Ness
United Kingdom
9
PristineChlorophyll
1.1
Dissolved O₂
5.95
Nitrate
3.61
#117Dunnet Bay
United Kingdom
9
PristineChlorophyll
1.1
Dissolved O₂
5.95
Nitrate
3.61
#118Thurso East
United Kingdom
9
PristineChlorophyll
1.1
Dissolved O₂
5.96
Nitrate
3.80
#119Aganoa
Samoa
10
PristineChlorophyll
0.1
Dissolved O₂
4.52
Nitrate
0.00
#120San José del Cabo
Mexico
10
PristineChlorophyll
0.1
Dissolved O₂
4.45
Nitrate
0.00
#121Playa Grande
Costa Rica
10
PristineChlorophyll
0.1
Dissolved O₂
4.69
Nitrate
0.05
#122Popoyo
Nicaragua
10
PristineChlorophyll
0.1
Dissolved O₂
4.63
Nitrate
0.10
#123Itacaré
Brazil
10
PristineChlorophyll
0.1
Dissolved O₂
4.63
Nitrate
0.02
#124Barra de la Cruz
Mexico
10
PristineChlorophyll
0.1
Dissolved O₂
4.57
Nitrate
0.12
#125Taitung
Taiwan
10
PristineChlorophyll
0.2
Dissolved O₂
4.51
Nitrate
0.02
#126Nosara
Costa Rica
10
PristineChlorophyll
0.2
Dissolved O₂
4.68
Nitrate
0.04
#127North Malé Atoll
Maldives
10
PristineChlorophyll
0.3
Dissolved O₂
4.51
Nitrate
0.01
#128Krui
Indonesia
10
PristineChlorophyll
0.3
Dissolved O₂
4.71
Nitrate
0.09
#129Cabarete
Dominican Republic
10
PristineChlorophyll
0.3
Dissolved O₂
4.48
Nitrate
0.01
#130Capbreton
France
10
PristineChlorophyll
0.3
Dissolved O₂
5.17
Nitrate
3.37
#131La Gravière
France
10
PristineChlorophyll
0.3
Dissolved O₂
5.17
Nitrate
3.36
#132Les Cavaliers
France
10
PristineChlorophyll
0.3
Dissolved O₂
5.15
Nitrate
3.22
#133Hossegor
France
10
PristineChlorophyll
0.3
Dissolved O₂
5.17
Nitrate
3.21
#134Seignosse
France
10
PristineChlorophyll
0.3
Dissolved O₂
5.15
Nitrate
3.22
#135Hiriketiya
Sri Lanka
10
PristineChlorophyll
0.4
Dissolved O₂
4.60
Nitrate
0.10
#136Arugam Bay
Sri Lanka
10
PristineChlorophyll
0.4
Dissolved O₂
4.54
Nitrate
0.03
#137Weligama
Sri Lanka
10
PristineChlorophyll
0.4
Dissolved O₂
4.60
Nitrate
0.10
#138Dakar Yoff
Senegal
10
PristineChlorophyll
0.5
Dissolved O₂
4.54
Nitrate
0.01
#139Ngor/Ouakam
Senegal
10
PristineChlorophyll
0.5
Dissolved O₂
4.54
Nitrate
0.01
#140Anglet
France
10
PristineChlorophyll
0.7
Dissolved O₂
5.17
Nitrate
3.21
#141Biarritz
France
10
PristineChlorophyll
0.7
Dissolved O₂
5.17
Nitrate
3.36
#142Guéthary
France
10
PristineChlorophyll
0.7
Dissolved O₂
5.17
Nitrate
3.36
#143Scarborough Beach
Australia
10
PristineChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#144Newgale
United Kingdom
10
PristineChlorophyll
1.0
Dissolved O₂
5.50
Nitrate
1.47
#145Whitesands Bay
United Kingdom
10
PristineChlorophyll
1.0
Dissolved O₂
5.55
Nitrate
1.09
#146Bude Summerleaze
United Kingdom
10
PristineChlorophyll
1.1
Dissolved O₂
-
Nitrate
-
#147Widemouth Bay
United Kingdom
10
PristineChlorophyll
1.1
Dissolved O₂
-
Nitrate
-
#148Inch Beach
Ireland
10
PristineChlorophyll
1.3
Dissolved O₂
5.74
Nitrate
3.60
#149Anchor Point
Morocco
10
PristineChlorophyll
1.4
Dissolved O₂
5.38
Nitrate
0.19
#150Taghazout
Morocco
10
PristineChlorophyll
1.4
Dissolved O₂
5.37
Nitrate
0.17
#151Mount Maunganui
New Zealand
10
PristineChlorophyll
1.7
Dissolved O₂
5.87
Nitrate
0.21
#152Nias (Sorake)
Indonesia
11
PristineChlorophyll
0.3
Dissolved O₂
4.56
Nitrate
0.01
#153Sayulita
Mexico
11
PristineChlorophyll
0.4
Dissolved O₂
4.75
Nitrate
0.14
#154Lacanau
France
11
PristineChlorophyll
0.5
Dissolved O₂
5.32
Nitrate
5.26
#155Santa Catalina
Panama
11
PristineChlorophyll
0.5
Dissolved O₂
4.61
Nitrate
0.04
#156Leucate
France
11
PristineChlorophyll
0.8
Dissolved O₂
4.94
Nitrate
0.39
#157Ichinomiya
Japan
11
PristineChlorophyll
1.0
Dissolved O₂
4.99
Nitrate
0.49
#158Tsurigasaki Beach
Japan
11
PristineChlorophyll
1.0
Dissolved O₂
4.99
Nitrate
0.49
#159G-Land
Indonesia
11
PristineChlorophyll
1.1
Dissolved O₂
4.76
Nitrate
0.03
#160Ubatuba
Brazil
11
PristineChlorophyll
1.2
Dissolved O₂
5.03
Nitrate
0.04
#161Ericeira
Portugal
11
PristineChlorophyll
1.2
Dissolved O₂
-
Nitrate
-
#162Ribeira d'Ilhas
Portugal
11
PristineChlorophyll
1.2
Dissolved O₂
-
Nitrate
-
#163Lakey Peak
Indonesia
11
PristineChlorophyll
1.2
Dissolved O₂
-
Nitrate
-
#164Pantín
Spain
11
PristineChlorophyll
1.3
Dissolved O₂
-
Nitrate
-
#165Fraserburgh
United Kingdom
11
PristineChlorophyll
1.5
Dissolved O₂
6.03
Nitrate
4.34
#166Garopaba
Brazil
11
PristineChlorophyll
1.6
Dissolved O₂
5.40
Nitrate
0.06
#167Kimmeridge Bay
United Kingdom
11
PristineChlorophyll
1.7
Dissolved O₂
5.46
Nitrate
0.43
#168Cloudbreak
Fiji
12
PristineChlorophyll
0.1
Dissolved O₂
4.70
Nitrate
0.00
#169Restaurants (Namotu)
Fiji
12
PristineChlorophyll
0.1
Dissolved O₂
4.70
Nitrate
0.00
#170Laniakea
United States
12
PristineChlorophyll
0.2
Dissolved O₂
4.67
Nitrate
0.00
#171Pipeline
United States
12
PristineChlorophyll
0.2
Dissolved O₂
4.67
Nitrate
0.00
#172Sunset Beach
United States
12
PristineChlorophyll
0.2
Dissolved O₂
4.67
Nitrate
0.00
#173Waimea Bay
United States
12
PristineChlorophyll
0.2
Dissolved O₂
4.67
Nitrate
0.00
#174Bull Bay
Jamaica
12
PristineChlorophyll
0.2
Dissolved O₂
4.40
Nitrate
0.01
#175El Gouna
Egypt
12
PristineChlorophyll
0.3
Dissolved O₂
4.46
Nitrate
0.00
#176Playa Hermosa
Costa Rica
12
PristineChlorophyll
0.6
Dissolved O₂
4.64
Nitrate
0.02
#177Tiree
United Kingdom
12
PristineChlorophyll
0.9
Dissolved O₂
5.78
Nitrate
5.67
#178Bocas del Toro
Panama
12
PristineChlorophyll
1.1
Dissolved O₂
4.51
Nitrate
0.77
#179Medewi
Indonesia
12
PristineChlorophyll
1.2
Dissolved O₂
4.64
Nitrate
0.03
#180Maresias
Brazil
12
PristineChlorophyll
1.5
Dissolved O₂
5.06
Nitrate
0.03
#181Narrabeen
Australia
12
PristineChlorophyll
1.6
Dissolved O₂
5.09
Nitrate
0.15
#182Dee Why
Australia
12
PristineChlorophyll
1.6
Dissolved O₂
5.09
Nitrate
0.15
#183Cannon Beach
United States
12
PristineChlorophyll
1.6
Dissolved O₂
5.87
Nitrate
1.20
#184Dover
United Kingdom
12
PristineChlorophyll
1.8
Dissolved O₂
5.33
Nitrate
0.16
#185Bournemouth
United Kingdom
12
PristineChlorophyll
1.9
Dissolved O₂
5.42
Nitrate
0.38
#186Brighton
United Kingdom
12
PristineChlorophyll
1.9
Dissolved O₂
5.36
Nitrate
0.43
#187Easkey
Ireland
12
PristineChlorophyll
2.0
Dissolved O₂
5.74
Nitrate
3.36
#188Reykjanes Peninsula
Iceland
13
PristineChlorophyll
0.4
Dissolved O₂
6.29
Nitrate
8.14
#189Puerto Escondido
Mexico
13
PristineChlorophyll
0.6
Dissolved O₂
4.55
Nitrate
0.76
#190Pavones
Costa Rica
13
PristineChlorophyll
0.9
Dissolved O₂
4.64
Nitrate
0.13
#191Mui Ne
Vietnam
13
PristineChlorophyll
0.9
Dissolved O₂
4.76
Nitrate
3.33
#192Jeffreys Bay
South Africa
13
PristineChlorophyll
1.1
Dissolved O₂
5.48
Nitrate
3.58
#193Cimaja
Indonesia
13
PristineChlorophyll
1.3
Dissolved O₂
4.80
Nitrate
0.07
#194Rincon
United States
13
PristineChlorophyll
1.4
Dissolved O₂
5.25
Nitrate
0.02
#195Saquarema
Brazil
13
PristineChlorophyll
1.5
Dissolved O₂
4.94
Nitrate
0.03
#196Manorbier
United Kingdom
13
PristineChlorophyll
1.6
Dissolved O₂
5.48
Nitrate
1.85
#197Bracklesham Bay
United Kingdom
13
PristineChlorophyll
2.1
Dissolved O₂
5.45
Nitrate
0.54
#198Torres
Brazil
13
PristineChlorophyll
2.2
Dissolved O₂
5.55
Nitrate
0.05
#199Imsouane
Morocco
13
PristineChlorophyll
2.3
Dissolved O₂
5.39
Nitrate
0.56
#200Sandycove
Ireland
13
PristineChlorophyll
2.4
Dissolved O₂
5.89
Nitrate
1.23
#201Bamburgh
United Kingdom
13
PristineChlorophyll
2.6
Dissolved O₂
5.97
Nitrate
2.24
#202Lanuza
Philippines
14
PristineChlorophyll
0.1
Dissolved O₂
4.46
Nitrate
0.06
#203Santa Cruz
Portugal
14
PristineChlorophyll
1.7
Dissolved O₂
-
Nitrate
-
#204Mavericks
United States
14
PristineChlorophyll
2.1
Dissolved O₂
6.21
Nitrate
2.10
#205Sandsend
United Kingdom
14
PristineChlorophyll
2.5
Dissolved O₂
5.81
Nitrate
0.67
#206Runswick Bay
United Kingdom
14
PristineChlorophyll
2.5
Dissolved O₂
5.81
Nitrate
0.67
#207Seaburn
United Kingdom
14
PristineChlorophyll
2.8
Dissolved O₂
5.92
Nitrate
1.10
#208Pascuales
Mexico
15
PristineChlorophyll
0.9
Dissolved O₂
4.60
Nitrate
0.56
#209Punta de Mita
Mexico
15
PristineChlorophyll
1.1
Dissolved O₂
4.76
Nitrate
0.12
#210Pichilemu
Chile
15
PristineChlorophyll
1.5
Dissolved O₂
5.85
Nitrate
2.84
#211Sebastian Inlet
United States
15
PristineChlorophyll
1.5
Dissolved O₂
4.47
Nitrate
0.01
#212Compton Bay
United Kingdom
15
PristineChlorophyll
2.5
Dissolved O₂
5.41
Nitrate
0.40
#213Troncones
Mexico
16
CleanChlorophyll
0.6
Dissolved O₂
4.98
Nitrate
0.87
#214Wrightsville Beach
United States
16
CleanChlorophyll
1.2
Dissolved O₂
4.70
Nitrate
1.54
#215Santa Cruz
United States
16
CleanChlorophyll
2.2
Dissolved O₂
5.78
Nitrate
2.38
#216Filey
United Kingdom
16
CleanChlorophyll
3.3
Dissolved O₂
5.68
Nitrate
0.06
#217Tamarin Bay
Mauritius
17
CleanChlorophyll
0.1
Dissolved O₂
4.81
Nitrate
0.00
#218Baisha Bay
Taiwan
17
CleanChlorophyll
1.6
Dissolved O₂
4.64
Nitrate
0.04
#219Piha
New Zealand
17
CleanChlorophyll
1.7
Dissolved O₂
5.83
Nitrate
0.03
#220Varkala
India
17
CleanChlorophyll
1.9
Dissolved O₂
4.67
Nitrate
0.06
#221Angourie
Australia
17
CleanChlorophyll
2.8
Dissolved O₂
4.97
Nitrate
0.28
#222Tynemouth
United Kingdom
17
CleanChlorophyll
3.6
Dissolved O₂
5.98
Nitrate
0.68
#223Jericoacoara
Brazil
18
CleanChlorophyll
0.3
Dissolved O₂
4.50
Nitrate
0.01
#224Máncora
Peru
18
CleanChlorophyll
1.6
Dissolved O₂
4.99
Nitrate
0.95
#225Saunton Sands
United Kingdom
18
CleanChlorophyll
2.7
Dissolved O₂
5.63
Nitrate
3.76
#226Woolacombe
United Kingdom
18
CleanChlorophyll
2.7
Dissolved O₂
5.63
Nitrate
3.76
#227Croyde
United Kingdom
18
CleanChlorophyll
2.7
Dissolved O₂
5.63
Nitrate
3.76
#228Joss Bay
United Kingdom
18
CleanChlorophyll
2.9
Dissolved O₂
5.31
Nitrate
0.06
#229Praia do Guincho
Portugal
18
CleanChlorophyll
3.3
Dissolved O₂
5.54
Nitrate
0.12
#230Carcavelos
Portugal
18
CleanChlorophyll
3.3
Dissolved O₂
5.53
Nitrate
0.12
#231Costa da Caparica
Portugal
18
CleanChlorophyll
3.3
Dissolved O₂
5.53
Nitrate
0.12
#232Cayton Bay
United Kingdom
18
CleanChlorophyll
3.5
Dissolved O₂
5.81
Nitrate
0.67
#233Scarborough
United Kingdom
18
CleanChlorophyll
3.5
Dissolved O₂
5.81
Nitrate
0.67
#234Saltburn-by-the-Sea
United Kingdom
18
CleanChlorophyll
3.6
Dissolved O₂
5.91
Nitrate
1.16
#235Putsborough
United Kingdom
19
CleanChlorophyll
2.7
Dissolved O₂
5.62
Nitrate
3.81
#236Llangennith
United Kingdom
19
CleanChlorophyll
2.9
Dissolved O₂
5.47
Nitrate
2.22
#237Matosinhos
Portugal
19
CleanChlorophyll
3.7
Dissolved O₂
5.66
Nitrate
2.65
#238Unstad
Norway
21
CleanChlorophyll
5.7
Dissolved O₂
6.24
Nitrate
0.79
#239Caswell Bay
United Kingdom
23
CleanChlorophyll
3.1
Dissolved O₂
5.63
Nitrate
3.76
#240Langland Bay
United Kingdom
23
CleanChlorophyll
3.1
Dissolved O₂
5.63
Nitrate
3.76
#241New Smyrna Beach
United States
23
CleanChlorophyll
4.0
Dissolved O₂
4.53
Nitrate
0.24
#242La Union (San Juan)
Philippines
23
CleanChlorophyll
4.1
Dissolved O₂
4.56
Nitrate
0.23
#243Dakhla
Morocco
23
CleanChlorophyll
4.5
Dissolved O₂
5.07
Nitrate
0.01
#244Strandhill
Ireland
23
CleanChlorophyll
5.0
Dissolved O₂
5.74
Nitrate
3.36
#245Rockaway Beach
United States
23
CleanChlorophyll
5.0
Dissolved O₂
5.52
Nitrate
0.71
#246Lobitos
Peru
24
CleanChlorophyll
2.3
Dissolved O₂
4.80
Nitrate
2.91
#247Eoropie
United Kingdom
25
CleanChlorophyll
4.0
Dissolved O₂
5.92
Nitrate
7.43
#248Outer Banks
United States
25
CleanChlorophyll
4.7
Dissolved O₂
5.03
Nitrate
0.55
#249Nihiwatu
Indonesia
25
CleanChlorophyll
4.8
Dissolved O₂
4.64
Nitrate
0.01
#250Muizenberg
South Africa
25
CleanChlorophyll
6.3
Dissolved O₂
6.24
Nitrate
0.66
#251Cocoa Beach
United States
26
CleanChlorophyll
2.9
Dissolved O₂
4.46
Nitrate
0.03
#252Kovalam
India
26
CleanChlorophyll
4.3
Dissolved O₂
4.59
Nitrate
0.90
#253Chicama
Peru
28
CleanChlorophyll
2.1
Dissolved O₂
4.80
Nitrate
6.17
#254Elands Bay
South Africa
29
CleanChlorophyll
7.1
Dissolved O₂
6.28
Nitrate
0.46
#255Lahinch
Ireland
30
CleanChlorophyll
1.0
Dissolved O₂
-
Nitrate
-
#256Bloubergstrand
South Africa
30
CleanChlorophyll
7.7
Dissolved O₂
6.18
Nitrate
0.83
#257Raglan
New Zealand
33
ModerateChlorophyll
1.4
Dissolved O₂
-
Nitrate
-
#258Rest Bay
United Kingdom
35
ModerateChlorophyll
5.4
Dissolved O₂
5.63
Nitrate
4.34
#259Folly Beach
United States
35
ModerateChlorophyll
6.3
Dissolved O₂
4.58
Nitrate
2.08
#260Ocean Beach SF
United States
36
ModerateChlorophyll
6.1
Dissolved O₂
6.02
Nitrate
1.94
#261Essaouira
Morocco
39
ModerateChlorophyll
8.8
Dissolved O₂
5.34
Nitrate
0.07
#262Sidi Kaouki
Morocco
40
ModerateChlorophyll
8.8
Dissolved O₂
5.36
Nitrate
0.27
#263Portrush
United Kingdom
44
ModerateChlorophyll
17.8
Dissolved O₂
5.77
Nitrate
4.37
#264Bolinas
United States
45
ModerateChlorophyll
8.3
Dissolved O₂
6.02
Nitrate
1.94
#265Tybee Island
United States
49
ModerateChlorophyll
9.8
Dissolved O₂
4.58
Nitrate
2.09
#266Bundoran
Ireland
56
ElevatedChlorophyll
7.1
Dissolved O₂
-
Nitrate
-
#267Mullaghmore Head
Ireland
56
ElevatedChlorophyll
7.1
Dissolved O₂
-
Nitrate
-
Satellite data from Copernicus Marine. Data from 6 October 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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