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 | 0.2 g/m3 |
| 2 | Montañita | Ecuador | 3 | Pristine | 0.3 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 3 | Shipwreck Bay | New Zealand | 4 | Pristine | 0.4 mg/m3 | 5.85 ml/L | 0.09 mmol/m3 | 0.186 mmol/m3 | 1.3 g/m3 |
| 4 | Huanchaco | Peru | 4 | Pristine | 0.4 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.6 g/m3 |
| 5 | Pantín | Spain | 4 | Pristine | 0.4 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.4 g/m3 |
| 6 | Margaret River | Australia | 5 | Pristine | 0.1 mg/m3 | 5.30 ml/L | 0.00 mmol/m3 | 0.125 mmol/m3 | 0.4 g/m3 |
| 7 | Gracetown | Australia | 5 | Pristine | 0.1 mg/m3 | 5.30 ml/L | 0.00 mmol/m3 | 0.125 mmol/m3 | 0.4 g/m3 |
| 8 | Bells Beach | Australia | 5 | Pristine | 0.3 mg/m3 | 5.67 ml/L | 0.02 mmol/m3 | 0.183 mmol/m3 | 0.9 g/m3 |
| 9 | Phillip Island | Australia | 5 | Pristine | 0.3 mg/m3 | 5.65 ml/L | 0.02 mmol/m3 | 0.194 mmol/m3 | 0.5 g/m3 |
| 10 | Torquay | Australia | 5 | Pristine | 0.3 mg/m3 | 5.67 ml/L | 0.02 mmol/m3 | 0.183 mmol/m3 | 0.9 g/m3 |
| 11 | Lagos | Portugal | 5 | Pristine | 0.4 mg/m3 | 5.52 ml/L | 0.79 mmol/m3 | 0.052 mmol/m3 | 0.5 g/m3 |
| 12 | Unstad | Norway | 5 | Pristine | - mg/m3 | 6.30 ml/L | 1.92 mmol/m3 | 0.134 mmol/m3 | 0.4 g/m3 |
| 13 | Lanzarote/Famara | Spain | 6 | Pristine | 0.1 mg/m3 | 4.93 ml/L | 0.00 mmol/m3 | 0.092 mmol/m3 | 0.2 g/m3 |
| 14 | San Sebastián | Spain | 6 | Pristine | 0.2 mg/m3 | 5.45 ml/L | 2.78 mmol/m3 | 0.001 mmol/m3 | 0.3 g/m3 |
| 15 | Sopelana | Spain | 6 | Pristine | 0.2 mg/m3 | 5.47 ml/L | 2.66 mmol/m3 | 0.004 mmol/m3 | 0.3 g/m3 |
| 16 | Somo | Spain | 6 | Pristine | 0.2 mg/m3 | 5.45 ml/L | 2.60 mmol/m3 | 0.003 mmol/m3 | 0.3 g/m3 |
| 17 | Deba | Spain | 6 | Pristine | 0.2 mg/m3 | 5.46 ml/L | 2.64 mmol/m3 | 0.001 mmol/m3 | 0.3 g/m3 |
| 18 | Getxo | Spain | 6 | Pristine | 0.3 mg/m3 | 5.47 ml/L | 2.66 mmol/m3 | 0.004 mmol/m3 | 0.3 g/m3 |
| 19 | Praia do Amado | Portugal | 6 | Pristine | 0.3 mg/m3 | 5.53 ml/L | 1.13 mmol/m3 | 0.082 mmol/m3 | 0.7 g/m3 |
| 20 | Salinas | Spain | 6 | Pristine | 0.4 mg/m3 | 5.57 ml/L | 2.53 mmol/m3 | 0.004 mmol/m3 | 0.4 g/m3 |
| 21 | Sagres | Portugal | 6 | Pristine | 0.4 mg/m3 | 5.53 ml/L | 0.97 mmol/m3 | 0.070 mmol/m3 | 0.7 g/m3 |
| 22 | Machrihanish | United Kingdom | 6 | Pristine | 0.5 mg/m3 | 5.91 ml/L | 2.90 mmol/m3 | 0.048 mmol/m3 | 1.3 g/m3 |
| 23 | Scarborough Beach | Australia | 6 | Pristine | 0.5 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 2.0 g/m3 |
| 24 | Arrifana | Portugal | 6 | Pristine | 0.5 mg/m3 | 5.53 ml/L | 1.13 mmol/m3 | 0.082 mmol/m3 | 0.7 g/m3 |
| 25 | Blacks Beach | United States | 6 | Pristine | 0.6 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.6 g/m3 |
| 26 | La Jolla Cove | United States | 6 | Pristine | 0.6 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.6 g/m3 |
| 27 | Dungeons | South Africa | 6 | Pristine | 0.9 mg/m3 | 5.73 ml/L | 0.11 mmol/m3 | 0.225 mmol/m3 | 0.4 g/m3 |
| 28 | Kirra | Australia | 7 | Pristine | 0.1 mg/m3 | 4.91 ml/L | 0.05 mmol/m3 | 0.150 mmol/m3 | 0.3 g/m3 |
| 29 | El Confital | Spain | 7 | Pristine | 0.1 mg/m3 | 4.84 ml/L | 0.00 mmol/m3 | 0.073 mmol/m3 | 0.3 g/m3 |
| 30 | Gran Canaria/El Confital | Spain | 7 | Pristine | 0.1 mg/m3 | 4.84 ml/L | 0.00 mmol/m3 | 0.074 mmol/m3 | 0.3 g/m3 |
| 31 | Burleigh Heads | Australia | 7 | Pristine | 0.1 mg/m3 | 4.91 ml/L | 0.11 mmol/m3 | 0.154 mmol/m3 | 0.3 g/m3 |
| 32 | Snapper Rocks | Australia | 7 | Pristine | 0.1 mg/m3 | 4.91 ml/L | 0.12 mmol/m3 | 0.155 mmol/m3 | 0.3 g/m3 |
| 33 | Rhodes | Greece | 7 | Pristine | 0.1 mg/m3 | 4.76 ml/L | 0.01 mmol/m3 | 0.012 mmol/m3 | 0.3 g/m3 |
| 34 | La Santa | Spain | 7 | Pristine | 0.1 mg/m3 | 4.92 ml/L | 0.00 mmol/m3 | 0.091 mmol/m3 | 0.2 g/m3 |
| 35 | Tenerife | Spain | 7 | Pristine | 0.1 mg/m3 | 4.80 ml/L | 0.00 mmol/m3 | 0.061 mmol/m3 | 0.3 g/m3 |
| 36 | Noosa | Australia | 7 | Pristine | 0.1 mg/m3 | 4.92 ml/L | 0.01 mmol/m3 | 0.150 mmol/m3 | 0.3 g/m3 |
| 37 | Fuerteventura/Cotillo | Spain | 7 | Pristine | 0.2 mg/m3 | 4.92 ml/L | 0.00 mmol/m3 | 0.095 mmol/m3 | 0.7 g/m3 |
| 38 | Oludeniz | Turkey | 7 | Pristine | 0.2 mg/m3 | 4.79 ml/L | 0.02 mmol/m3 | 0.013 mmol/m3 | 0.4 g/m3 |
| 39 | Merewether | Australia | 7 | Pristine | 0.2 mg/m3 | 5.11 ml/L | 0.60 mmol/m3 | 0.208 mmol/m3 | 0.2 g/m3 |
| 40 | Les Cavaliers | France | 7 | Pristine | 0.2 mg/m3 | 5.44 ml/L | 2.83 mmol/m3 | 0.002 mmol/m3 | 0.4 g/m3 |
| 41 | Biarritz | France | 7 | Pristine | 0.2 mg/m3 | 5.44 ml/L | 2.83 mmol/m3 | 0.002 mmol/m3 | 0.4 g/m3 |
| 42 | Guéthary | France | 7 | Pristine | 0.2 mg/m3 | 5.44 ml/L | 2.83 mmol/m3 | 0.002 mmol/m3 | 0.4 g/m3 |
| 43 | Vliho Bay | Greece | 7 | Pristine | 0.3 mg/m3 | 4.82 ml/L | 0.01 mmol/m3 | 0.002 mmol/m3 | 0.4 g/m3 |
| 44 | Dee Why | Australia | 7 | Pristine | 0.3 mg/m3 | 5.12 ml/L | 0.25 mmol/m3 | 0.191 mmol/m3 | 0.3 g/m3 |
| 45 | Zarautz | Spain | 7 | Pristine | 0.3 mg/m3 | 5.41 ml/L | 2.82 mmol/m3 | 0.001 mmol/m3 | 0.3 g/m3 |
| 46 | Maroubra | Australia | 7 | Pristine | 0.4 mg/m3 | 5.12 ml/L | 0.25 mmol/m3 | 0.191 mmol/m3 | 0.2 g/m3 |
| 47 | Inch Beach | Ireland | 7 | Pristine | 0.5 mg/m3 | 5.99 ml/L | 5.01 mmol/m3 | 0.013 mmol/m3 | 0.5 g/m3 |
| 48 | Razo | Spain | 7 | Pristine | 0.5 mg/m3 | 5.70 ml/L | 2.32 mmol/m3 | 0.072 mmol/m3 | 0.5 g/m3 |
| 49 | Mundaka | Spain | 7 | Pristine | 0.6 mg/m3 | 5.50 ml/L | 2.60 mmol/m3 | 0.004 mmol/m3 | 0.3 g/m3 |
| 50 | Brighton | United Kingdom | 7 | Pristine | 0.6 mg/m3 | 5.58 ml/L | 0.40 mmol/m3 | 0.030 mmol/m3 | 2.6 g/m3 |
| 51 | El Palmar | Spain | 7 | Pristine | 0.6 mg/m3 | 5.25 ml/L | 0.11 mmol/m3 | 0.024 mmol/m3 | 0.8 g/m3 |
| 52 | Sennen Cove | United Kingdom | 7 | Pristine | 0.6 mg/m3 | 5.67 ml/L | 1.54 mmol/m3 | 0.139 mmol/m3 | 0.5 g/m3 |
| 53 | Tarifa | Spain | 7 | Pristine | 0.7 mg/m3 | 5.22 ml/L | 0.08 mmol/m3 | 0.020 mmol/m3 | 0.3 g/m3 |
| 54 | Gwithian | United Kingdom | 7 | Pristine | 0.7 mg/m3 | 5.67 ml/L | 1.26 mmol/m3 | 0.110 mmol/m3 | 0.7 g/m3 |
| 55 | Porthmeor | United Kingdom | 7 | Pristine | 0.7 mg/m3 | 5.67 ml/L | 1.22 mmol/m3 | 0.106 mmol/m3 | 0.7 g/m3 |
| 56 | Praa Sands | United Kingdom | 7 | Pristine | 0.7 mg/m3 | 5.67 ml/L | 1.26 mmol/m3 | 0.110 mmol/m3 | 0.7 g/m3 |
| 57 | Jeffreys Bay | South Africa | 7 | Pristine | 0.8 mg/m3 | 5.48 ml/L | 0.34 mmol/m3 | 0.180 mmol/m3 | 0.4 g/m3 |
| 58 | Porthleven | United Kingdom | 7 | Pristine | 0.8 mg/m3 | 5.66 ml/L | 1.54 mmol/m3 | 0.132 mmol/m3 | 0.3 g/m3 |
| 59 | Porthtowan | United Kingdom | 7 | Pristine | 0.8 mg/m3 | 5.66 ml/L | 1.54 mmol/m3 | 0.132 mmol/m3 | 0.3 g/m3 |
| 60 | Kommetjie | South Africa | 7 | Pristine | 1.0 mg/m3 | 5.72 ml/L | 0.22 mmol/m3 | 0.233 mmol/m3 | 0.4 g/m3 |
| 61 | Saint-Leu | Réunion | 8 | Pristine | 0.1 mg/m3 | 4.79 ml/L | 0.00 mmol/m3 | 0.158 mmol/m3 | 0.3 g/m3 |
| 62 | Tanegashima | Japan | 8 | Pristine | 0.1 mg/m3 | 4.61 ml/L | 0.01 mmol/m3 | 0.044 mmol/m3 | 0.3 g/m3 |
| 63 | Bathsheba | Barbados | 8 | Pristine | 0.1 mg/m3 | 4.46 ml/L | 0.00 mmol/m3 | 0.011 mmol/m3 | 0.2 g/m3 |
| 64 | Miyazaki | Japan | 8 | Pristine | 0.1 mg/m3 | 4.65 ml/L | 0.02 mmol/m3 | 0.040 mmol/m3 | 0.4 g/m3 |
| 65 | Bull Bay | Jamaica | 8 | Pristine | 0.1 mg/m3 | 4.44 ml/L | 0.01 mmol/m3 | 0.002 mmol/m3 | 0.3 g/m3 |
| 66 | Anakao | Madagascar | 8 | Pristine | 0.1 mg/m3 | 4.70 ml/L | 0.00 mmol/m3 | 0.124 mmol/m3 | 0.2 g/m3 |
| 67 | Lennox Head | Australia | 8 | Pristine | 0.1 mg/m3 | 4.86 ml/L | 0.50 mmol/m3 | 0.181 mmol/m3 | 0.3 g/m3 |
| 68 | Mentawai Islands | Indonesia | 8 | Pristine | 0.1 mg/m3 | 4.75 ml/L | 0.02 mmol/m3 | 0.105 mmol/m3 | 0.4 g/m3 |
| 69 | Nias (Sorake) | Indonesia | 8 | Pristine | 0.1 mg/m3 | 4.68 ml/L | 0.02 mmol/m3 | 0.036 mmol/m3 | 0.4 g/m3 |
| 70 | Simeulue | Indonesia | 8 | Pristine | 0.2 mg/m3 | 4.60 ml/L | 0.01 mmol/m3 | 0.021 mmol/m3 | 0.3 g/m3 |
| 71 | Le Moule | Guadeloupe | 8 | Pristine | 0.2 mg/m3 | 4.47 ml/L | 0.00 mmol/m3 | 0.005 mmol/m3 | 0.3 g/m3 |
| 72 | Tofo | Mozambique | 8 | Pristine | 0.2 mg/m3 | 4.75 ml/L | 0.01 mmol/m3 | 0.093 mmol/m3 | 0.2 g/m3 |
| 73 | Ponta Preta | Cape Verde | 8 | Pristine | 0.2 mg/m3 | 4.62 ml/L | 0.00 mmol/m3 | 0.059 mmol/m3 | 0.4 g/m3 |
| 74 | Huntington Beach | United States | 8 | Pristine | 0.2 mg/m3 | 5.12 ml/L | 0.03 mmol/m3 | 0.424 mmol/m3 | 0.5 g/m3 |
| 75 | The Wedge | United States | 8 | Pristine | 0.2 mg/m3 | 5.13 ml/L | 0.02 mmol/m3 | 0.424 mmol/m3 | 0.5 g/m3 |
| 76 | Jeju Jungmun | South Korea | 8 | Pristine | 0.3 mg/m3 | 4.74 ml/L | 0.11 mmol/m3 | 0.052 mmol/m3 | 0.4 g/m3 |
| 77 | Izu Peninsula | Japan | 8 | Pristine | 0.3 mg/m3 | 4.80 ml/L | 0.07 mmol/m3 | 0.054 mmol/m3 | 0.3 g/m3 |
| 78 | Angourie | Australia | 8 | Pristine | 0.3 mg/m3 | 4.99 ml/L | 0.21 mmol/m3 | 0.168 mmol/m3 | 0.5 g/m3 |
| 79 | Niijima | Japan | 8 | Pristine | 0.3 mg/m3 | 4.72 ml/L | 0.11 mmol/m3 | 0.056 mmol/m3 | 0.3 g/m3 |
| 80 | Shonan | Japan | 8 | Pristine | 0.3 mg/m3 | 5.10 ml/L | 0.49 mmol/m3 | 0.256 mmol/m3 | 0.4 g/m3 |
| 81 | Avoca Beach | Australia | 8 | Pristine | 0.3 mg/m3 | 5.09 ml/L | 0.93 mmol/m3 | 0.231 mmol/m3 | 0.3 g/m3 |
| 82 | Fraserburgh | United Kingdom | 8 | Pristine | 0.3 mg/m3 | 5.96 ml/L | 5.25 mmol/m3 | 0.211 mmol/m3 | 0.5 g/m3 |
| 83 | Leucate | France | 8 | Pristine | 0.4 mg/m3 | 5.10 ml/L | 0.27 mmol/m3 | 0.001 mmol/m3 | 3.2 g/m3 |
| 84 | Narrabeen | Australia | 8 | Pristine | 0.4 mg/m3 | 5.11 ml/L | 0.41 mmol/m3 | 0.200 mmol/m3 | 0.3 g/m3 |
| 85 | Capbreton | France | 8 | Pristine | 0.4 mg/m3 | 5.44 ml/L | 2.83 mmol/m3 | 0.002 mmol/m3 | 1.9 g/m3 |
| 86 | La Gravière | France | 8 | Pristine | 0.4 mg/m3 | 5.44 ml/L | 2.84 mmol/m3 | 0.001 mmol/m3 | 1.9 g/m3 |
| 87 | Seignosse | France | 8 | Pristine | 0.4 mg/m3 | 5.43 ml/L | 2.72 mmol/m3 | 0.001 mmol/m3 | 1.9 g/m3 |
| 88 | Hossegor | France | 8 | Pristine | 0.5 mg/m3 | 5.44 ml/L | 2.83 mmol/m3 | 0.002 mmol/m3 | 1.9 g/m3 |
| 89 | Anglet | France | 8 | Pristine | 0.5 mg/m3 | 5.44 ml/L | 2.83 mmol/m3 | 0.002 mmol/m3 | 0.4 g/m3 |
| 90 | Bigbury-on-Sea | United Kingdom | 8 | Pristine | 0.7 mg/m3 | 5.55 ml/L | 1.70 mmol/m3 | 0.178 mmol/m3 | 1.3 g/m3 |
| 91 | Santa Cruz | United States | 8 | Pristine | 0.7 mg/m3 | 5.56 ml/L | 0.41 mmol/m3 | 0.438 mmol/m3 | 0.6 g/m3 |
| 92 | Bracklesham Bay | United Kingdom | 8 | Pristine | 0.9 mg/m3 | 5.63 ml/L | 0.49 mmol/m3 | 0.010 mmol/m3 | 3.5 g/m3 |
| 93 | Florianópolis | Brazil | 8 | Pristine | 0.9 mg/m3 | 5.31 ml/L | 0.02 mmol/m3 | 0.075 mmol/m3 | 1.9 g/m3 |
| 94 | Kimmeridge Bay | United Kingdom | 8 | Pristine | 1.1 mg/m3 | 5.51 ml/L | 0.40 mmol/m3 | 0.004 mmol/m3 | 2.3 g/m3 |
| 95 | Teahupo'o | French Polynesia | 9 | Pristine | 0.1 mg/m3 | 4.62 ml/L | 0.00 mmol/m3 | 0.222 mmol/m3 | 0.3 g/m3 |
| 96 | Siargao/Cloud 9 | Philippines | 9 | Pristine | 0.1 mg/m3 | 4.42 ml/L | 0.00 mmol/m3 | 0.064 mmol/m3 | 0.4 g/m3 |
| 97 | Fernando de Noronha | Brazil | 9 | Pristine | 0.1 mg/m3 | 4.62 ml/L | 0.02 mmol/m3 | 0.202 mmol/m3 | 0.3 g/m3 |
| 98 | Jaws/Pe'ahi | United States | 9 | Pristine | 0.1 mg/m3 | 4.63 ml/L | 0.00 mmol/m3 | 0.221 mmol/m3 | 0.3 g/m3 |
| 99 | Hookipa | United States | 9 | Pristine | 0.1 mg/m3 | 4.65 ml/L | 0.00 mmol/m3 | 0.206 mmol/m3 | 0.3 g/m3 |
| 100 | Praia da Pipa | Brazil | 9 | Pristine | 0.1 mg/m3 | 4.50 ml/L | 0.00 mmol/m3 | 0.121 mmol/m3 | 0.7 g/m3 |
| 101 | Honolua Bay | United States | 9 | Pristine | 0.1 mg/m3 | 4.62 ml/L | 0.00 mmol/m3 | 0.208 mmol/m3 | 0.3 g/m3 |
| 102 | Baler | Philippines | 9 | Pristine | 0.2 mg/m3 | 4.44 ml/L | 0.01 mmol/m3 | 0.081 mmol/m3 | 0.3 g/m3 |
| 103 | El Tunco | El Salvador | 9 | Pristine | 0.2 mg/m3 | 4.68 ml/L | 0.14 mmol/m3 | 0.237 mmol/m3 | 0.4 g/m3 |
| 104 | Popoyo | Nicaragua | 9 | Pristine | 0.2 mg/m3 | 4.78 ml/L | 0.26 mmol/m3 | 0.330 mmol/m3 | 0.4 g/m3 |
| 105 | Keramas | Indonesia | 9 | Pristine | 0.2 mg/m3 | 4.55 ml/L | 0.02 mmol/m3 | 0.073 mmol/m3 | 0.3 g/m3 |
| 106 | Thulusdhoo | Maldives | 9 | Pristine | 0.2 mg/m3 | 4.56 ml/L | 0.11 mmol/m3 | 0.150 mmol/m3 | 0.3 g/m3 |
| 107 | Rincón | Puerto Rico | 9 | Pristine | 0.2 mg/m3 | 4.44 ml/L | 0.00 mmol/m3 | 0.003 mmol/m3 | 0.4 g/m3 |
| 108 | North Stradbroke Island | Australia | 9 | Pristine | 0.3 mg/m3 | 4.92 ml/L | 0.14 mmol/m3 | 0.159 mmol/m3 | 1.6 g/m3 |
| 109 | El Gouna | Egypt | 9 | Pristine | 0.3 mg/m3 | 4.48 ml/L | 0.00 mmol/m3 | 0.014 mmol/m3 | 1.1 g/m3 |
| 110 | Ngor/Ouakam | Senegal | 9 | Pristine | 0.3 mg/m3 | 4.59 ml/L | 0.00 mmol/m3 | 0.057 mmol/m3 | 0.5 g/m3 |
| 111 | Santa Teresa | Costa Rica | 9 | Pristine | 0.3 mg/m3 | 4.82 ml/L | 0.03 mmol/m3 | 0.309 mmol/m3 | 0.3 g/m3 |
| 112 | Desert Point | Indonesia | 9 | Pristine | 0.4 mg/m3 | 4.55 ml/L | 0.02 mmol/m3 | 0.062 mmol/m3 | 0.3 g/m3 |
| 113 | Saquarema | Brazil | 9 | Pristine | 0.4 mg/m3 | 4.99 ml/L | 0.03 mmol/m3 | 0.198 mmol/m3 | 1.6 g/m3 |
| 114 | Trestles | United States | 9 | Pristine | 0.4 mg/m3 | 5.06 ml/L | 0.03 mmol/m3 | 0.423 mmol/m3 | 0.4 g/m3 |
| 115 | Rincon | United States | 9 | Pristine | 0.4 mg/m3 | 5.20 ml/L | 0.01 mmol/m3 | 0.427 mmol/m3 | 1.3 g/m3 |
| 116 | Maresias | Brazil | 9 | Pristine | 0.6 mg/m3 | 5.04 ml/L | 0.19 mmol/m3 | 0.152 mmol/m3 | 1.2 g/m3 |
| 117 | Lacanau | France | 9 | Pristine | 0.7 mg/m3 | 5.58 ml/L | 4.30 mmol/m3 | 0.006 mmol/m3 | 0.3 g/m3 |
| 118 | Bantham | United Kingdom | 9 | Pristine | 0.8 mg/m3 | 5.55 ml/L | 1.73 mmol/m3 | 0.179 mmol/m3 | 1.3 g/m3 |
| 119 | Compton Bay | United Kingdom | 9 | Pristine | 0.9 mg/m3 | 5.48 ml/L | 0.39 mmol/m3 | 0.008 mmol/m3 | 4.2 g/m3 |
| 120 | Bude Summerleaze | United Kingdom | 9 | Pristine | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.2 g/m3 |
| 121 | Freshwater West | United Kingdom | 9 | Pristine | 1.0 mg/m3 | 5.64 ml/L | 1.06 mmol/m3 | 0.021 mmol/m3 | 3.2 g/m3 |
| 122 | Saltburn-by-the-Sea | United Kingdom | 9 | Pristine | 1.1 mg/m3 | 5.92 ml/L | 1.61 mmol/m3 | 0.304 mmol/m3 | 2.3 g/m3 |
| 123 | Constantine Bay | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.66 ml/L | 1.54 mmol/m3 | 0.132 mmol/m3 | 0.8 g/m3 |
| 124 | Crantock | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.66 ml/L | 1.42 mmol/m3 | 0.121 mmol/m3 | 0.8 g/m3 |
| 125 | Lusty Glaze | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.66 ml/L | 1.42 mmol/m3 | 0.121 mmol/m3 | 0.8 g/m3 |
| 126 | Newquay/Fistral | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.66 ml/L | 1.42 mmol/m3 | 0.121 mmol/m3 | 0.8 g/m3 |
| 127 | Perranporth | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.66 ml/L | 1.42 mmol/m3 | 0.121 mmol/m3 | 0.8 g/m3 |
| 128 | Watergate Bay | United Kingdom | 9 | Pristine | 1.2 mg/m3 | 5.66 ml/L | 1.54 mmol/m3 | 0.132 mmol/m3 | 0.8 g/m3 |
| 129 | Seaburn | United Kingdom | 9 | Pristine | 1.3 mg/m3 | 5.93 ml/L | 1.60 mmol/m3 | 0.300 mmol/m3 | 0.7 g/m3 |
| 130 | Aganoa | Samoa | 10 | Pristine | 0.1 mg/m3 | 4.50 ml/L | 0.00 mmol/m3 | 0.296 mmol/m3 | 0.6 g/m3 |
| 131 | Itacaré | Brazil | 10 | Pristine | 0.1 mg/m3 | 4.61 ml/L | 0.02 mmol/m3 | 0.121 mmol/m3 | 2.4 g/m3 |
| 132 | Puerto Escondido | Mexico | 10 | Pristine | 0.1 mg/m3 | 4.68 ml/L | 0.42 mmol/m3 | 0.363 mmol/m3 | 0.6 g/m3 |
| 133 | El Sunzal | El Salvador | 10 | Pristine | 0.2 mg/m3 | 4.64 ml/L | 0.09 mmol/m3 | 0.318 mmol/m3 | 0.4 g/m3 |
| 134 | Arugam Bay | Sri Lanka | 10 | Pristine | 0.2 mg/m3 | 4.50 ml/L | 0.29 mmol/m3 | 0.201 mmol/m3 | 0.4 g/m3 |
| 135 | North Malé Atoll | Maldives | 10 | Pristine | 0.3 mg/m3 | 4.52 ml/L | 0.05 mmol/m3 | 0.143 mmol/m3 | 0.7 g/m3 |
| 136 | Nosara | Costa Rica | 10 | Pristine | 0.3 mg/m3 | 4.77 ml/L | 0.05 mmol/m3 | 0.317 mmol/m3 | 0.3 g/m3 |
| 137 | Hiriketiya | Sri Lanka | 10 | Pristine | 0.3 mg/m3 | 4.50 ml/L | 0.04 mmol/m3 | 0.166 mmol/m3 | 0.5 g/m3 |
| 138 | Playa Grande | Costa Rica | 10 | Pristine | 0.4 mg/m3 | 4.76 ml/L | 0.07 mmol/m3 | 0.306 mmol/m3 | 0.3 g/m3 |
| 139 | Cabarete | Dominican Republic | 10 | Pristine | 0.4 mg/m3 | 4.45 ml/L | 0.02 mmol/m3 | 0.003 mmol/m3 | 1.1 g/m3 |
| 140 | Boracay | Philippines | 10 | Pristine | 0.5 mg/m3 | 4.47 ml/L | 0.27 mmol/m3 | 0.003 mmol/m3 | 0.3 g/m3 |
| 141 | La Union (San Juan) | Philippines | 10 | Pristine | 0.6 mg/m3 | 4.57 ml/L | 0.03 mmol/m3 | 0.011 mmol/m3 | 0.4 g/m3 |
| 142 | Bingin | Indonesia | 10 | Pristine | 0.7 mg/m3 | 4.55 ml/L | 0.01 mmol/m3 | 0.073 mmol/m3 | 0.3 g/m3 |
| 143 | Balangan | Indonesia | 10 | Pristine | 0.7 mg/m3 | 4.55 ml/L | 0.01 mmol/m3 | 0.073 mmol/m3 | 0.3 g/m3 |
| 144 | Uluwatu | Indonesia | 10 | Pristine | 0.7 mg/m3 | 4.55 ml/L | 0.01 mmol/m3 | 0.073 mmol/m3 | 0.3 g/m3 |
| 145 | Ubatuba | Brazil | 10 | Pristine | 0.9 mg/m3 | 5.02 ml/L | 0.02 mmol/m3 | 0.137 mmol/m3 | 2.2 g/m3 |
| 146 | Tramore | Ireland | 10 | Pristine | 1.0 mg/m3 | 5.76 ml/L | 3.35 mmol/m3 | 0.266 mmol/m3 | 0.6 g/m3 |
| 147 | Mavericks | United States | 10 | Pristine | 1.0 mg/m3 | 5.62 ml/L | 0.85 mmol/m3 | 0.467 mmol/m3 | 0.8 g/m3 |
| 148 | Sandycove | Ireland | 10 | Pristine | 1.1 mg/m3 | 5.92 ml/L | 1.79 mmol/m3 | 0.146 mmol/m3 | 3.8 g/m3 |
| 149 | Garopaba | Brazil | 10 | Pristine | 1.2 mg/m3 | 5.36 ml/L | 0.04 mmol/m3 | 0.071 mmol/m3 | 3.1 g/m3 |
| 150 | Newgale | United Kingdom | 10 | Pristine | 1.3 mg/m3 | 5.66 ml/L | 1.10 mmol/m3 | 0.027 mmol/m3 | 4.1 g/m3 |
| 151 | Whitesands Bay | United Kingdom | 10 | Pristine | 1.3 mg/m3 | 5.66 ml/L | 1.20 mmol/m3 | 0.042 mmol/m3 | 4.1 g/m3 |
| 152 | Chapel Porth | United Kingdom | 10 | Pristine | 1.7 mg/m3 | 5.66 ml/L | 1.42 mmol/m3 | 0.121 mmol/m3 | 0.3 g/m3 |
| 153 | Imsouane | Morocco | 10 | Pristine | 1.7 mg/m3 | 5.38 ml/L | 0.09 mmol/m3 | 0.091 mmol/m3 | 1.0 g/m3 |
| 154 | Harlyn Bay | United Kingdom | 10 | Pristine | 2.0 mg/m3 | 5.59 ml/L | 1.28 mmol/m3 | 0.002 mmol/m3 | 0.3 g/m3 |
| 155 | Polzeath | United Kingdom | 10 | Pristine | 2.0 mg/m3 | 5.59 ml/L | 1.28 mmol/m3 | 0.002 mmol/m3 | 0.3 g/m3 |
| 156 | Gordon's Bay | South Africa | 10 | Pristine | 2.0 mg/m3 | 5.88 ml/L | 0.10 mmol/m3 | 0.259 mmol/m3 | 0.7 g/m3 |
| 157 | Barra de la Cruz | Mexico | 11 | Pristine | 0.2 mg/m3 | 4.57 ml/L | 0.73 mmol/m3 | 0.392 mmol/m3 | 0.4 g/m3 |
| 158 | San José del Cabo | Mexico | 11 | Pristine | 0.2 mg/m3 | 4.45 ml/L | 0.01 mmol/m3 | 0.289 mmol/m3 | 0.3 g/m3 |
| 159 | Weligama | Sri Lanka | 11 | Pristine | 0.4 mg/m3 | 4.50 ml/L | 0.12 mmol/m3 | 0.170 mmol/m3 | 0.6 g/m3 |
| 160 | Santa Catalina | Panama | 11 | Pristine | 0.8 mg/m3 | 4.61 ml/L | 0.05 mmol/m3 | 0.164 mmol/m3 | 0.7 g/m3 |
| 161 | Canggu | Indonesia | 11 | Pristine | 0.9 mg/m3 | 4.56 ml/L | 0.01 mmol/m3 | 0.074 mmol/m3 | 0.3 g/m3 |
| 162 | Mui Ne | Vietnam | 11 | Pristine | 0.9 mg/m3 | 4.59 ml/L | 0.09 mmol/m3 | 0.004 mmol/m3 | 0.5 g/m3 |
| 163 | Kuta Lombok | Indonesia | 11 | Pristine | 1.0 mg/m3 | 4.59 ml/L | 0.01 mmol/m3 | 0.079 mmol/m3 | 0.5 g/m3 |
| 164 | Durban Bay of Plenty | South Africa | 11 | Pristine | 1.2 mg/m3 | 4.89 ml/L | 0.01 mmol/m3 | 0.144 mmol/m3 | 0.4 g/m3 |
| 165 | Dover | United Kingdom | 11 | Pristine | 1.4 mg/m3 | 5.48 ml/L | 0.38 mmol/m3 | 0.125 mmol/m3 | 3.1 g/m3 |
| 166 | Bournemouth | United Kingdom | 11 | Pristine | 1.7 mg/m3 | 5.49 ml/L | 0.39 mmol/m3 | 0.003 mmol/m3 | 2.6 g/m3 |
| 167 | Thurso East | United Kingdom | 11 | Pristine | 1.8 mg/m3 | 5.99 ml/L | 3.65 mmol/m3 | 0.128 mmol/m3 | 0.9 g/m3 |
| 168 | Bamburgh | United Kingdom | 11 | Pristine | 2.0 mg/m3 | 6.00 ml/L | 2.48 mmol/m3 | 0.049 mmol/m3 | 2.3 g/m3 |
| 169 | Nazaré | Portugal | 11 | Pristine | 2.3 mg/m3 | 5.82 ml/L | 1.11 mmol/m3 | 0.072 mmol/m3 | 0.8 g/m3 |
| 170 | Sunset Beach | United States | 12 | Pristine | 0.1 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.208 mmol/m3 | 5.1 g/m3 |
| 171 | Waimea Bay | United States | 12 | Pristine | 0.1 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.210 mmol/m3 | 5.1 g/m3 |
| 172 | Laniakea | United States | 12 | Pristine | 0.1 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.209 mmol/m3 | 5.1 g/m3 |
| 173 | Pipeline | United States | 12 | Pristine | 0.1 mg/m3 | 4.66 ml/L | 0.00 mmol/m3 | 0.208 mmol/m3 | 5.1 g/m3 |
| 174 | Cloudbreak | Fiji | 12 | Pristine | 0.1 mg/m3 | 4.68 ml/L | 0.00 mmol/m3 | 0.221 mmol/m3 | 5.2 g/m3 |
| 175 | Restaurants (Namotu) | Fiji | 12 | Pristine | 0.2 mg/m3 | 4.68 ml/L | 0.00 mmol/m3 | 0.221 mmol/m3 | 5.2 g/m3 |
| 176 | Pichilemu | Chile | 12 | Pristine | 0.7 mg/m3 | 5.75 ml/L | 2.37 mmol/m3 | 0.912 mmol/m3 | 0.4 g/m3 |
| 177 | Lakey Peak | Indonesia | 12 | Pristine | 0.7 mg/m3 | 4.69 ml/L | 0.01 mmol/m3 | 0.108 mmol/m3 | 2.8 g/m3 |
| 178 | Kovalam | India | 12 | Pristine | 0.7 mg/m3 | 4.54 ml/L | 0.02 mmol/m3 | 0.176 mmol/m3 | 2.2 g/m3 |
| 179 | Taitung | Taiwan | 12 | Pristine | 0.8 mg/m3 | 4.50 ml/L | 0.09 mmol/m3 | 0.091 mmol/m3 | 1.8 g/m3 |
| 180 | Bocas del Toro | Panama | 12 | Pristine | 0.9 mg/m3 | 4.48 ml/L | 0.42 mmol/m3 | 0.001 mmol/m3 | 0.8 g/m3 |
| 181 | Nihiwatu | Indonesia | 12 | Pristine | 1.0 mg/m3 | 4.59 ml/L | 0.01 mmol/m3 | 0.109 mmol/m3 | 0.4 g/m3 |
| 182 | Padang Padang | Indonesia | 12 | Pristine | 1.0 mg/m3 | 4.55 ml/L | 0.01 mmol/m3 | 0.073 mmol/m3 | 0.3 g/m3 |
| 183 | Manorbier | United Kingdom | 12 | Pristine | 1.4 mg/m3 | 5.60 ml/L | 1.85 mmol/m3 | 0.021 mmol/m3 | 3.8 g/m3 |
| 184 | Dunnet Bay | United Kingdom | 12 | Pristine | 1.8 mg/m3 | 5.96 ml/L | 3.87 mmol/m3 | 0.163 mmol/m3 | 0.9 g/m3 |
| 185 | Bloubergstrand | South Africa | 12 | Pristine | 2.4 mg/m3 | 5.74 ml/L | 0.23 mmol/m3 | 0.263 mmol/m3 | 0.7 g/m3 |
| 186 | Muizenberg | South Africa | 12 | Pristine | 2.5 mg/m3 | 5.87 ml/L | 0.37 mmol/m3 | 0.270 mmol/m3 | 0.6 g/m3 |
| 187 | Punta de Mita | Mexico | 13 | Pristine | 0.6 mg/m3 | 4.70 ml/L | 0.07 mmol/m3 | 0.286 mmol/m3 | 3.9 g/m3 |
| 188 | Varkala | India | 13 | Pristine | 0.8 mg/m3 | 4.60 ml/L | 0.02 mmol/m3 | 0.166 mmol/m3 | 3.4 g/m3 |
| 189 | Ichinomiya | Japan | 13 | Pristine | 1.3 mg/m3 | 4.80 ml/L | 0.36 mmol/m3 | 0.088 mmol/m3 | 1.7 g/m3 |
| 190 | Tsurigasaki Beach | Japan | 13 | Pristine | 1.3 mg/m3 | 4.80 ml/L | 0.36 mmol/m3 | 0.088 mmol/m3 | 1.7 g/m3 |
| 191 | Tiree | United Kingdom | 13 | Pristine | 1.4 mg/m3 | 5.84 ml/L | 5.22 mmol/m3 | 0.189 mmol/m3 | 0.8 g/m3 |
| 192 | Hoddevik | Norway | 13 | Pristine | 2.2 mg/m3 | 6.05 ml/L | 3.80 mmol/m3 | 0.185 mmol/m3 | 0.3 g/m3 |
| 193 | Mount Maunganui | New Zealand | 13 | Pristine | 2.3 mg/m3 | 5.77 ml/L | 0.15 mmol/m3 | 0.229 mmol/m3 | 2.9 g/m3 |
| 194 | Krui | Indonesia | 14 | Pristine | 0.9 mg/m3 | 4.64 ml/L | 1.14 mmol/m3 | 0.319 mmol/m3 | 0.6 g/m3 |
| 195 | Dakar Yoff | Senegal | 14 | Pristine | 0.9 mg/m3 | 4.56 ml/L | 0.01 mmol/m3 | 0.065 mmol/m3 | 4.5 g/m3 |
| 196 | Sayulita | Mexico | 14 | Pristine | 1.0 mg/m3 | 4.70 ml/L | 0.07 mmol/m3 | 0.286 mmol/m3 | 2.4 g/m3 |
| 197 | Pascuales | Mexico | 14 | Pristine | 1.0 mg/m3 | 4.62 ml/L | 0.41 mmol/m3 | 0.318 mmol/m3 | 0.9 g/m3 |
| 198 | Sebastian Inlet | United States | 14 | Pristine | 1.5 mg/m3 | 4.54 ml/L | 0.01 mmol/m3 | 0.001 mmol/m3 | 2.7 g/m3 |
| 199 | Playa Hermosa | Costa Rica | 14 | Pristine | 1.5 mg/m3 | 4.69 ml/L | 0.03 mmol/m3 | 0.267 mmol/m3 | 0.5 g/m3 |
| 200 | Ericeira | Portugal | 14 | Pristine | 1.6 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.1 g/m3 |
| 201 | Ribeira d'Ilhas | Portugal | 14 | Pristine | 1.6 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.1 g/m3 |
| 202 | Joss Bay | United Kingdom | 14 | Pristine | 1.8 mg/m3 | 5.50 ml/L | 0.25 mmol/m3 | 0.091 mmol/m3 | 6.3 g/m3 |
| 203 | Sandsend | United Kingdom | 14 | Pristine | 2.7 mg/m3 | 5.86 ml/L | 0.60 mmol/m3 | 0.234 mmol/m3 | 2.0 g/m3 |
| 204 | Runswick Bay | United Kingdom | 14 | Pristine | 2.7 mg/m3 | 5.86 ml/L | 0.60 mmol/m3 | 0.234 mmol/m3 | 2.0 g/m3 |
| 205 | Baleal | Portugal | 14 | Pristine | 3.1 mg/m3 | 5.82 ml/L | 1.12 mmol/m3 | 0.072 mmol/m3 | 0.8 g/m3 |
| 206 | Peniche/Supertubos | Portugal | 14 | Pristine | 3.1 mg/m3 | 5.82 ml/L | 1.12 mmol/m3 | 0.072 mmol/m3 | 0.8 g/m3 |
| 207 | Lanuza | Philippines | 15 | Pristine | 0.4 mg/m3 | 4.43 ml/L | 0.04 mmol/m3 | 0.072 mmol/m3 | 7.8 g/m3 |
| 208 | Baisha Bay | Taiwan | 15 | Pristine | 0.8 mg/m3 | 4.62 ml/L | 0.20 mmol/m3 | 0.061 mmol/m3 | 6.8 g/m3 |
| 209 | Sidi Kaouki | Morocco | 15 | Pristine | 1.8 mg/m3 | 5.37 ml/L | 0.08 mmol/m3 | 0.082 mmol/m3 | 7.0 g/m3 |
| 210 | Essaouira | Morocco | 15 | Pristine | 1.8 mg/m3 | 5.33 ml/L | 0.02 mmol/m3 | 0.062 mmol/m3 | 7.0 g/m3 |
| 211 | G-Land | Indonesia | 15 | Pristine | 2.1 mg/m3 | 4.66 ml/L | 0.01 mmol/m3 | 0.100 mmol/m3 | 0.8 g/m3 |
| 212 | Easkey | Ireland | 15 | Pristine | 3.1 mg/m3 | 5.89 ml/L | 3.34 mmol/m3 | 0.041 mmol/m3 | 0.5 g/m3 |
| 213 | Troncones | Mexico | 16 | Clean | 0.7 mg/m3 | 5.00 ml/L | 0.68 mmol/m3 | 0.223 mmol/m3 | 9.2 g/m3 |
| 214 | Putsborough | United Kingdom | 16 | Clean | 1.4 mg/m3 | 5.57 ml/L | 4.80 mmol/m3 | 0.126 mmol/m3 | 4.4 g/m3 |
| 215 | Eoropie | United Kingdom | 16 | Clean | 1.5 mg/m3 | 5.92 ml/L | 7.27 mmol/m3 | 0.365 mmol/m3 | 1.2 g/m3 |
| 216 | Santa Cruz | Portugal | 16 | Clean | 1.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.5 g/m3 |
| 217 | Llangennith | United Kingdom | 16 | Clean | 2.3 mg/m3 | 5.60 ml/L | 2.43 mmol/m3 | 0.025 mmol/m3 | 5.6 g/m3 |
| 218 | Dakhla | Morocco | 16 | Clean | 2.5 mg/m3 | 5.08 ml/L | 0.01 mmol/m3 | 0.074 mmol/m3 | 2.9 g/m3 |
| 219 | Tamarin Bay | Mauritius | 17 | Clean | 0.1 mg/m3 | 4.81 ml/L | 0.00 mmol/m3 | 0.149 mmol/m3 | 14.9 g/m3 |
| 220 | Reykjanes Peninsula | Iceland | 17 | Clean | 0.5 mg/m3 | 6.33 ml/L | 10.35 mmol/m3 | 0.659 mmol/m3 | 0.7 g/m3 |
| 221 | Piha | New Zealand | 17 | Clean | 1.5 mg/m3 | 5.71 ml/L | 0.02 mmol/m3 | 0.189 mmol/m3 | 13.1 g/m3 |
| 222 | Máncora | Peru | 17 | Clean | 1.7 mg/m3 | 5.09 ml/L | 0.38 mmol/m3 | 0.422 mmol/m3 | 4.8 g/m3 |
| 223 | Saunton Sands | United Kingdom | 17 | Clean | 1.9 mg/m3 | 5.57 ml/L | 4.75 mmol/m3 | 0.125 mmol/m3 | 4.4 g/m3 |
| 224 | Woolacombe | United Kingdom | 17 | Clean | 1.9 mg/m3 | 5.57 ml/L | 4.75 mmol/m3 | 0.125 mmol/m3 | 4.4 g/m3 |
| 225 | Croyde | United Kingdom | 17 | Clean | 1.9 mg/m3 | 5.57 ml/L | 4.80 mmol/m3 | 0.126 mmol/m3 | 4.4 g/m3 |
| 226 | Pavones | Costa Rica | 17 | Clean | 2.0 mg/m3 | 4.64 ml/L | 0.26 mmol/m3 | 0.169 mmol/m3 | 3.0 g/m3 |
| 227 | Medewi | Indonesia | 17 | Clean | 2.6 mg/m3 | 4.61 ml/L | 0.01 mmol/m3 | 0.096 mmol/m3 | 1.2 g/m3 |
| 228 | Brimms Ness | United Kingdom | 18 | Clean | 3.4 mg/m3 | 5.96 ml/L | 4.64 mmol/m3 | 0.213 mmol/m3 | 0.2 g/m3 |
| 229 | Outer Banks | United States | 18 | Clean | 3.4 mg/m3 | 5.39 ml/L | 0.38 mmol/m3 | 0.007 mmol/m3 | 4.1 g/m3 |
| 230 | Cayton Bay | United Kingdom | 18 | Clean | 3.6 mg/m3 | 5.86 ml/L | 0.60 mmol/m3 | 0.234 mmol/m3 | 4.0 g/m3 |
| 231 | Scarborough | United Kingdom | 18 | Clean | 3.6 mg/m3 | 5.87 ml/L | 0.61 mmol/m3 | 0.234 mmol/m3 | 4.0 g/m3 |
| 232 | Torres | Brazil | 18 | Clean | 3.6 mg/m3 | 5.48 ml/L | 0.03 mmol/m3 | 0.071 mmol/m3 | 3.1 g/m3 |
| 233 | Jericoacoara | Brazil | 19 | Clean | 0.6 mg/m3 | 4.47 ml/L | 0.01 mmol/m3 | 0.107 mmol/m3 | 12.6 g/m3 |
| 234 | Matosinhos | Portugal | 19 | Clean | 3.9 mg/m3 | 5.69 ml/L | 2.43 mmol/m3 | 0.204 mmol/m3 | 0.7 g/m3 |
| 235 | Anchor Point | Morocco | 19 | Clean | 3.9 mg/m3 | 5.37 ml/L | 0.04 mmol/m3 | 0.090 mmol/m3 | 2.0 g/m3 |
| 236 | Taghazout | Morocco | 19 | Clean | 3.9 mg/m3 | 5.38 ml/L | 0.05 mmol/m3 | 0.090 mmol/m3 | 2.0 g/m3 |
| 237 | La Torche | France | 20 | Clean | 3.4 mg/m3 | 5.60 ml/L | 4.16 mmol/m3 | 0.291 mmol/m3 | 0.4 g/m3 |
| 238 | Rockaway Beach | United States | 20 | Clean | 4.5 mg/m3 | 5.76 ml/L | 1.03 mmol/m3 | 0.227 mmol/m3 | 1.0 g/m3 |
| 239 | Lobitos | Peru | 21 | Clean | 1.8 mg/m3 | 4.82 ml/L | 2.62 mmol/m3 | 0.621 mmol/m3 | 3.5 g/m3 |
| 240 | Costa da Caparica | Portugal | 21 | Clean | 3.9 mg/m3 | 5.59 ml/L | 0.78 mmol/m3 | 0.071 mmol/m3 | 6.3 g/m3 |
| 241 | Tynemouth | United Kingdom | 21 | Clean | 4.3 mg/m3 | 5.97 ml/L | 1.66 mmol/m3 | 0.292 mmol/m3 | 2.6 g/m3 |
| 242 | Filey | United Kingdom | 22 | Clean | 5.2 mg/m3 | 5.86 ml/L | 0.09 mmol/m3 | 0.145 mmol/m3 | 3.0 g/m3 |
| 243 | Widemouth Bay | United Kingdom | 23 | Clean | 2.7 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.2 g/m3 |
| 244 | New Smyrna Beach | United States | 23 | Clean | 4.0 mg/m3 | 4.66 ml/L | 0.04 mmol/m3 | 0.001 mmol/m3 | 2.7 g/m3 |
| 245 | Langland Bay | United Kingdom | 24 | Clean | 2.9 mg/m3 | 5.56 ml/L | 4.54 mmol/m3 | 0.117 mmol/m3 | 10.0 g/m3 |
| 246 | Elands Bay | South Africa | 24 | Clean | 5.8 mg/m3 | 6.35 ml/L | 0.14 mmol/m3 | 0.320 mmol/m3 | 1.4 g/m3 |
| 247 | Chicama | Peru | 25 | Clean | 1.0 mg/m3 | 4.70 ml/L | 6.57 mmol/m3 | 1.050 mmol/m3 | 2.0 g/m3 |
| 248 | Cocoa Beach | United States | 25 | Clean | 2.7 mg/m3 | 4.61 ml/L | 0.03 mmol/m3 | 0.000 mmol/m3 | 12.2 g/m3 |
| 249 | Caswell Bay | United Kingdom | 25 | Clean | 3.1 mg/m3 | 5.57 ml/L | 4.75 mmol/m3 | 0.125 mmol/m3 | 10.0 g/m3 |
| 250 | Wrightsville Beach | United States | 25 | Clean | 3.9 mg/m3 | 4.92 ml/L | 1.91 mmol/m3 | 0.002 mmol/m3 | 6.2 g/m3 |
| 251 | Mirleft | Morocco | 25 | Clean | 5.7 mg/m3 | 5.39 ml/L | 0.03 mmol/m3 | 0.095 mmol/m3 | 1.6 g/m3 |
| 252 | Cimaja | Indonesia | 26 | Clean | 2.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 2.4 g/m3 |
| 253 | Strandhill | Ireland | 27 | Clean | 6.3 mg/m3 | 5.89 ml/L | 3.34 mmol/m3 | 0.041 mmol/m3 | 0.6 g/m3 |
| 254 | Folly Beach | United States | 28 | Clean | 5.0 mg/m3 | 4.91 ml/L | 1.86 mmol/m3 | 0.001 mmol/m3 | 5.3 g/m3 |
| 255 | Praia do Guincho | Portugal | 28 | Clean | 5.7 mg/m3 | 5.59 ml/L | 0.82 mmol/m3 | 0.074 mmol/m3 | 6.3 g/m3 |
| 256 | Carcavelos | Portugal | 28 | Clean | 5.7 mg/m3 | 5.59 ml/L | 0.82 mmol/m3 | 0.074 mmol/m3 | 6.3 g/m3 |
| 257 | Raglan | New Zealand | 30 | Clean | 0.9 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 27.0 g/m3 |
| 258 | Ocean Beach SF | United States | 31 | Moderate | 4.9 mg/m3 | 5.72 ml/L | 0.97 mmol/m3 | 0.486 mmol/m3 | 12.5 g/m3 |
| 259 | Bolinas | United States | 32 | Moderate | 4.6 mg/m3 | 5.74 ml/L | 1.13 mmol/m3 | 0.503 mmol/m3 | 21.8 g/m3 |
| 260 | Tybee Island | United States | 35 | Moderate | 6.3 mg/m3 | 4.88 ml/L | 2.42 mmol/m3 | 0.001 mmol/m3 | 7.8 g/m3 |
| 261 | Rest Bay | United Kingdom | 38 | Moderate | 5.5 mg/m3 | 5.66 ml/L | 5.81 mmol/m3 | 0.132 mmol/m3 | 21.2 g/m3 |
| 262 | Cannon Beach | United States | 38 | Moderate | 9.4 mg/m3 | 6.08 ml/L | 0.67 mmol/m3 | 0.486 mmol/m3 | 2.4 g/m3 |
| 263 | Pacific City | United States | 43 | Moderate | 5.3 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 0.9 g/m3 |
| 264 | Portrush | United Kingdom | 43 | Moderate | 38.1 mg/m3 | 5.85 ml/L | 3.96 mmol/m3 | 0.122 mmol/m3 | 3.8 g/m3 |
| 265 | Bundoran | Ireland | 48 | Moderate | 6.0 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.0 g/m3 |
| 266 | Mullaghmore Head | Ireland | 48 | Moderate | 6.0 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 1.0 g/m3 |
| 267 | Lahinch | Ireland | 100 | Poor | 11.0 mg/m3 | - ml/L | - mmol/m3 | - mmol/m3 | 18.6 g/m3 |
#1El Quemao
Spain
1
PristineChlorophyll
0.1
Dissolved O₂
-
Nitrate
-
#2Montañita
Ecuador
3
PristineChlorophyll
0.3
Dissolved O₂
-
Nitrate
-
#3Shipwreck Bay
New Zealand
4
PristineChlorophyll
0.4
Dissolved O₂
5.85
Nitrate
0.09
#4Huanchaco
Peru
4
PristineChlorophyll
0.4
Dissolved O₂
-
Nitrate
-
#5Pantín
Spain
4
PristineChlorophyll
0.4
Dissolved O₂
-
Nitrate
-
#6Margaret River
Australia
5
PristineChlorophyll
0.1
Dissolved O₂
5.30
Nitrate
0.00
#7Gracetown
Australia
5
PristineChlorophyll
0.1
Dissolved O₂
5.30
Nitrate
0.00
#8Bells Beach
Australia
5
PristineChlorophyll
0.3
Dissolved O₂
5.67
Nitrate
0.02
#9Phillip Island
Australia
5
PristineChlorophyll
0.3
Dissolved O₂
5.65
Nitrate
0.02
#10Torquay
Australia
5
PristineChlorophyll
0.3
Dissolved O₂
5.67
Nitrate
0.02
#11Lagos
Portugal
5
PristineChlorophyll
0.4
Dissolved O₂
5.52
Nitrate
0.79
#12Unstad
Norway
5
PristineChlorophyll
-
Dissolved O₂
6.30
Nitrate
1.92
#13Lanzarote/Famara
Spain
6
PristineChlorophyll
0.1
Dissolved O₂
4.93
Nitrate
0.00
#14San Sebastián
Spain
6
PristineChlorophyll
0.2
Dissolved O₂
5.45
Nitrate
2.78
#15Sopelana
Spain
6
PristineChlorophyll
0.2
Dissolved O₂
5.47
Nitrate
2.66
#16Somo
Spain
6
PristineChlorophyll
0.2
Dissolved O₂
5.45
Nitrate
2.60
#17Deba
Spain
6
PristineChlorophyll
0.2
Dissolved O₂
5.46
Nitrate
2.64
#18Getxo
Spain
6
PristineChlorophyll
0.3
Dissolved O₂
5.47
Nitrate
2.66
#19Praia do Amado
Portugal
6
PristineChlorophyll
0.3
Dissolved O₂
5.53
Nitrate
1.13
#20Salinas
Spain
6
PristineChlorophyll
0.4
Dissolved O₂
5.57
Nitrate
2.53
#21Sagres
Portugal
6
PristineChlorophyll
0.4
Dissolved O₂
5.53
Nitrate
0.97
#22Machrihanish
United Kingdom
6
PristineChlorophyll
0.5
Dissolved O₂
5.91
Nitrate
2.90
#23Scarborough Beach
Australia
6
PristineChlorophyll
0.5
Dissolved O₂
-
Nitrate
-
#24Arrifana
Portugal
6
PristineChlorophyll
0.5
Dissolved O₂
5.53
Nitrate
1.13
#25Blacks Beach
United States
6
PristineChlorophyll
0.6
Dissolved O₂
-
Nitrate
-
#26La Jolla Cove
United States
6
PristineChlorophyll
0.6
Dissolved O₂
-
Nitrate
-
#27Dungeons
South Africa
6
PristineChlorophyll
0.9
Dissolved O₂
5.73
Nitrate
0.11
#28Kirra
Australia
7
PristineChlorophyll
0.1
Dissolved O₂
4.91
Nitrate
0.05
#29El Confital
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.84
Nitrate
0.00
#30Gran Canaria/El Confital
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.84
Nitrate
0.00
#31Burleigh Heads
Australia
7
PristineChlorophyll
0.1
Dissolved O₂
4.91
Nitrate
0.11
#32Snapper Rocks
Australia
7
PristineChlorophyll
0.1
Dissolved O₂
4.91
Nitrate
0.12
#33Rhodes
Greece
7
PristineChlorophyll
0.1
Dissolved O₂
4.76
Nitrate
0.01
#34La Santa
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.92
Nitrate
0.00
#35Tenerife
Spain
7
PristineChlorophyll
0.1
Dissolved O₂
4.80
Nitrate
0.00
#36Noosa
Australia
7
PristineChlorophyll
0.1
Dissolved O₂
4.92
Nitrate
0.01
#37Fuerteventura/Cotillo
Spain
7
PristineChlorophyll
0.2
Dissolved O₂
4.92
Nitrate
0.00
#38Oludeniz
Turkey
7
PristineChlorophyll
0.2
Dissolved O₂
4.79
Nitrate
0.02
#39Merewether
Australia
7
PristineChlorophyll
0.2
Dissolved O₂
5.11
Nitrate
0.60
#40Les Cavaliers
France
7
PristineChlorophyll
0.2
Dissolved O₂
5.44
Nitrate
2.83
#41Biarritz
France
7
PristineChlorophyll
0.2
Dissolved O₂
5.44
Nitrate
2.83
#42Guéthary
France
7
PristineChlorophyll
0.2
Dissolved O₂
5.44
Nitrate
2.83
#43Vliho Bay
Greece
7
PristineChlorophyll
0.3
Dissolved O₂
4.82
Nitrate
0.01
#44Dee Why
Australia
7
PristineChlorophyll
0.3
Dissolved O₂
5.12
Nitrate
0.25
#45Zarautz
Spain
7
PristineChlorophyll
0.3
Dissolved O₂
5.41
Nitrate
2.82
#46Maroubra
Australia
7
PristineChlorophyll
0.4
Dissolved O₂
5.12
Nitrate
0.25
#47Inch Beach
Ireland
7
PristineChlorophyll
0.5
Dissolved O₂
5.99
Nitrate
5.01
#48Razo
Spain
7
PristineChlorophyll
0.5
Dissolved O₂
5.70
Nitrate
2.32
#49Mundaka
Spain
7
PristineChlorophyll
0.6
Dissolved O₂
5.50
Nitrate
2.60
#50Brighton
United Kingdom
7
PristineChlorophyll
0.6
Dissolved O₂
5.58
Nitrate
0.40
#51El Palmar
Spain
7
PristineChlorophyll
0.6
Dissolved O₂
5.25
Nitrate
0.11
#52Sennen Cove
United Kingdom
7
PristineChlorophyll
0.6
Dissolved O₂
5.67
Nitrate
1.54
#53Tarifa
Spain
7
PristineChlorophyll
0.7
Dissolved O₂
5.22
Nitrate
0.08
#54Gwithian
United Kingdom
7
PristineChlorophyll
0.7
Dissolved O₂
5.67
Nitrate
1.26
#55Porthmeor
United Kingdom
7
PristineChlorophyll
0.7
Dissolved O₂
5.67
Nitrate
1.22
#56Praa Sands
United Kingdom
7
PristineChlorophyll
0.7
Dissolved O₂
5.67
Nitrate
1.26
#57Jeffreys Bay
South Africa
7
PristineChlorophyll
0.8
Dissolved O₂
5.48
Nitrate
0.34
#58Porthleven
United Kingdom
7
PristineChlorophyll
0.8
Dissolved O₂
5.66
Nitrate
1.54
#59Porthtowan
United Kingdom
7
PristineChlorophyll
0.8
Dissolved O₂
5.66
Nitrate
1.54
#60Kommetjie
South Africa
7
PristineChlorophyll
1.0
Dissolved O₂
5.72
Nitrate
0.22
#61Saint-Leu
Réunion
8
PristineChlorophyll
0.1
Dissolved O₂
4.79
Nitrate
0.00
#62Tanegashima
Japan
8
PristineChlorophyll
0.1
Dissolved O₂
4.61
Nitrate
0.01
#63Bathsheba
Barbados
8
PristineChlorophyll
0.1
Dissolved O₂
4.46
Nitrate
0.00
#64Miyazaki
Japan
8
PristineChlorophyll
0.1
Dissolved O₂
4.65
Nitrate
0.02
#65Bull Bay
Jamaica
8
PristineChlorophyll
0.1
Dissolved O₂
4.44
Nitrate
0.01
#66Anakao
Madagascar
8
PristineChlorophyll
0.1
Dissolved O₂
4.70
Nitrate
0.00
#67Lennox Head
Australia
8
PristineChlorophyll
0.1
Dissolved O₂
4.86
Nitrate
0.50
#68Mentawai Islands
Indonesia
8
PristineChlorophyll
0.1
Dissolved O₂
4.75
Nitrate
0.02
#69Nias (Sorake)
Indonesia
8
PristineChlorophyll
0.1
Dissolved O₂
4.68
Nitrate
0.02
#70Simeulue
Indonesia
8
PristineChlorophyll
0.2
Dissolved O₂
4.60
Nitrate
0.01
#71Le Moule
Guadeloupe
8
PristineChlorophyll
0.2
Dissolved O₂
4.47
Nitrate
0.00
#72Tofo
Mozambique
8
PristineChlorophyll
0.2
Dissolved O₂
4.75
Nitrate
0.01
#73Ponta Preta
Cape Verde
8
PristineChlorophyll
0.2
Dissolved O₂
4.62
Nitrate
0.00
#74Huntington Beach
United States
8
PristineChlorophyll
0.2
Dissolved O₂
5.12
Nitrate
0.03
#75The Wedge
United States
8
PristineChlorophyll
0.2
Dissolved O₂
5.13
Nitrate
0.02
#76Jeju Jungmun
South Korea
8
PristineChlorophyll
0.3
Dissolved O₂
4.74
Nitrate
0.11
#77Izu Peninsula
Japan
8
PristineChlorophyll
0.3
Dissolved O₂
4.80
Nitrate
0.07
#78Angourie
Australia
8
PristineChlorophyll
0.3
Dissolved O₂
4.99
Nitrate
0.21
#79Niijima
Japan
8
PristineChlorophyll
0.3
Dissolved O₂
4.72
Nitrate
0.11
#80Shonan
Japan
8
PristineChlorophyll
0.3
Dissolved O₂
5.10
Nitrate
0.49
#81Avoca Beach
Australia
8
PristineChlorophyll
0.3
Dissolved O₂
5.09
Nitrate
0.93
#82Fraserburgh
United Kingdom
8
PristineChlorophyll
0.3
Dissolved O₂
5.96
Nitrate
5.25
#83Leucate
France
8
PristineChlorophyll
0.4
Dissolved O₂
5.10
Nitrate
0.27
#84Narrabeen
Australia
8
PristineChlorophyll
0.4
Dissolved O₂
5.11
Nitrate
0.41
#85Capbreton
France
8
PristineChlorophyll
0.4
Dissolved O₂
5.44
Nitrate
2.83
#86La Gravière
France
8
PristineChlorophyll
0.4
Dissolved O₂
5.44
Nitrate
2.84
#87Seignosse
France
8
PristineChlorophyll
0.4
Dissolved O₂
5.43
Nitrate
2.72
#88Hossegor
France
8
PristineChlorophyll
0.5
Dissolved O₂
5.44
Nitrate
2.83
#89Anglet
France
8
PristineChlorophyll
0.5
Dissolved O₂
5.44
Nitrate
2.83
#90Bigbury-on-Sea
United Kingdom
8
PristineChlorophyll
0.7
Dissolved O₂
5.55
Nitrate
1.70
#91Santa Cruz
United States
8
PristineChlorophyll
0.7
Dissolved O₂
5.56
Nitrate
0.41
#92Bracklesham Bay
United Kingdom
8
PristineChlorophyll
0.9
Dissolved O₂
5.63
Nitrate
0.49
#93Florianópolis
Brazil
8
PristineChlorophyll
0.9
Dissolved O₂
5.31
Nitrate
0.02
#94Kimmeridge Bay
United Kingdom
8
PristineChlorophyll
1.1
Dissolved O₂
5.51
Nitrate
0.40
#95Teahupo'o
French Polynesia
9
PristineChlorophyll
0.1
Dissolved O₂
4.62
Nitrate
0.00
#96Siargao/Cloud 9
Philippines
9
PristineChlorophyll
0.1
Dissolved O₂
4.42
Nitrate
0.00
#97Fernando de Noronha
Brazil
9
PristineChlorophyll
0.1
Dissolved O₂
4.62
Nitrate
0.02
#98Jaws/Pe'ahi
United States
9
PristineChlorophyll
0.1
Dissolved O₂
4.63
Nitrate
0.00
#99Hookipa
United States
9
PristineChlorophyll
0.1
Dissolved O₂
4.65
Nitrate
0.00
#100Praia da Pipa
Brazil
9
PristineChlorophyll
0.1
Dissolved O₂
4.50
Nitrate
0.00
#101Honolua Bay
United States
9
PristineChlorophyll
0.1
Dissolved O₂
4.62
Nitrate
0.00
#102Baler
Philippines
9
PristineChlorophyll
0.2
Dissolved O₂
4.44
Nitrate
0.01
#103El Tunco
El Salvador
9
PristineChlorophyll
0.2
Dissolved O₂
4.68
Nitrate
0.14
#104Popoyo
Nicaragua
9
PristineChlorophyll
0.2
Dissolved O₂
4.78
Nitrate
0.26
#105Keramas
Indonesia
9
PristineChlorophyll
0.2
Dissolved O₂
4.55
Nitrate
0.02
#106Thulusdhoo
Maldives
9
PristineChlorophyll
0.2
Dissolved O₂
4.56
Nitrate
0.11
#107Rincón
Puerto Rico
9
PristineChlorophyll
0.2
Dissolved O₂
4.44
Nitrate
0.00
#108North Stradbroke Island
Australia
9
PristineChlorophyll
0.3
Dissolved O₂
4.92
Nitrate
0.14
#109El Gouna
Egypt
9
PristineChlorophyll
0.3
Dissolved O₂
4.48
Nitrate
0.00
#110Ngor/Ouakam
Senegal
9
PristineChlorophyll
0.3
Dissolved O₂
4.59
Nitrate
0.00
#111Santa Teresa
Costa Rica
9
PristineChlorophyll
0.3
Dissolved O₂
4.82
Nitrate
0.03
#112Desert Point
Indonesia
9
PristineChlorophyll
0.4
Dissolved O₂
4.55
Nitrate
0.02
#113Saquarema
Brazil
9
PristineChlorophyll
0.4
Dissolved O₂
4.99
Nitrate
0.03
#114Trestles
United States
9
PristineChlorophyll
0.4
Dissolved O₂
5.06
Nitrate
0.03
#115Rincon
United States
9
PristineChlorophyll
0.4
Dissolved O₂
5.20
Nitrate
0.01
#116Maresias
Brazil
9
PristineChlorophyll
0.6
Dissolved O₂
5.04
Nitrate
0.19
#117Lacanau
France
9
PristineChlorophyll
0.7
Dissolved O₂
5.58
Nitrate
4.30
#118Bantham
United Kingdom
9
PristineChlorophyll
0.8
Dissolved O₂
5.55
Nitrate
1.73
#119Compton Bay
United Kingdom
9
PristineChlorophyll
0.9
Dissolved O₂
5.48
Nitrate
0.39
#120Bude Summerleaze
United Kingdom
9
PristineChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#121Freshwater West
United Kingdom
9
PristineChlorophyll
1.0
Dissolved O₂
5.64
Nitrate
1.06
#122Saltburn-by-the-Sea
United Kingdom
9
PristineChlorophyll
1.1
Dissolved O₂
5.92
Nitrate
1.61
#123Constantine Bay
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.66
Nitrate
1.54
#124Crantock
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.66
Nitrate
1.42
#125Lusty Glaze
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.66
Nitrate
1.42
#126Newquay/Fistral
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.66
Nitrate
1.42
#127Perranporth
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.66
Nitrate
1.42
#128Watergate Bay
United Kingdom
9
PristineChlorophyll
1.2
Dissolved O₂
5.66
Nitrate
1.54
#129Seaburn
United Kingdom
9
PristineChlorophyll
1.3
Dissolved O₂
5.93
Nitrate
1.60
#130Aganoa
Samoa
10
PristineChlorophyll
0.1
Dissolved O₂
4.50
Nitrate
0.00
#131Itacaré
Brazil
10
PristineChlorophyll
0.1
Dissolved O₂
4.61
Nitrate
0.02
#132Puerto Escondido
Mexico
10
PristineChlorophyll
0.1
Dissolved O₂
4.68
Nitrate
0.42
#133El Sunzal
El Salvador
10
PristineChlorophyll
0.2
Dissolved O₂
4.64
Nitrate
0.09
#134Arugam Bay
Sri Lanka
10
PristineChlorophyll
0.2
Dissolved O₂
4.50
Nitrate
0.29
#135North Malé Atoll
Maldives
10
PristineChlorophyll
0.3
Dissolved O₂
4.52
Nitrate
0.05
#136Nosara
Costa Rica
10
PristineChlorophyll
0.3
Dissolved O₂
4.77
Nitrate
0.05
#137Hiriketiya
Sri Lanka
10
PristineChlorophyll
0.3
Dissolved O₂
4.50
Nitrate
0.04
#138Playa Grande
Costa Rica
10
PristineChlorophyll
0.4
Dissolved O₂
4.76
Nitrate
0.07
#139Cabarete
Dominican Republic
10
PristineChlorophyll
0.4
Dissolved O₂
4.45
Nitrate
0.02
#140Boracay
Philippines
10
PristineChlorophyll
0.5
Dissolved O₂
4.47
Nitrate
0.27
#141La Union (San Juan)
Philippines
10
PristineChlorophyll
0.6
Dissolved O₂
4.57
Nitrate
0.03
#142Bingin
Indonesia
10
PristineChlorophyll
0.7
Dissolved O₂
4.55
Nitrate
0.01
#143Balangan
Indonesia
10
PristineChlorophyll
0.7
Dissolved O₂
4.55
Nitrate
0.01
#144Uluwatu
Indonesia
10
PristineChlorophyll
0.7
Dissolved O₂
4.55
Nitrate
0.01
#145Ubatuba
Brazil
10
PristineChlorophyll
0.9
Dissolved O₂
5.02
Nitrate
0.02
#146Tramore
Ireland
10
PristineChlorophyll
1.0
Dissolved O₂
5.76
Nitrate
3.35
#147Mavericks
United States
10
PristineChlorophyll
1.0
Dissolved O₂
5.62
Nitrate
0.85
#148Sandycove
Ireland
10
PristineChlorophyll
1.1
Dissolved O₂
5.92
Nitrate
1.79
#149Garopaba
Brazil
10
PristineChlorophyll
1.2
Dissolved O₂
5.36
Nitrate
0.04
#150Newgale
United Kingdom
10
PristineChlorophyll
1.3
Dissolved O₂
5.66
Nitrate
1.10
#151Whitesands Bay
United Kingdom
10
PristineChlorophyll
1.3
Dissolved O₂
5.66
Nitrate
1.20
#152Chapel Porth
United Kingdom
10
PristineChlorophyll
1.7
Dissolved O₂
5.66
Nitrate
1.42
#153Imsouane
Morocco
10
PristineChlorophyll
1.7
Dissolved O₂
5.38
Nitrate
0.09
#154Harlyn Bay
United Kingdom
10
PristineChlorophyll
2.0
Dissolved O₂
5.59
Nitrate
1.28
#155Polzeath
United Kingdom
10
PristineChlorophyll
2.0
Dissolved O₂
5.59
Nitrate
1.28
#156Gordon's Bay
South Africa
10
PristineChlorophyll
2.0
Dissolved O₂
5.88
Nitrate
0.10
#157Barra de la Cruz
Mexico
11
PristineChlorophyll
0.2
Dissolved O₂
4.57
Nitrate
0.73
#158San José del Cabo
Mexico
11
PristineChlorophyll
0.2
Dissolved O₂
4.45
Nitrate
0.01
#159Weligama
Sri Lanka
11
PristineChlorophyll
0.4
Dissolved O₂
4.50
Nitrate
0.12
#160Santa Catalina
Panama
11
PristineChlorophyll
0.8
Dissolved O₂
4.61
Nitrate
0.05
#161Canggu
Indonesia
11
PristineChlorophyll
0.9
Dissolved O₂
4.56
Nitrate
0.01
#162Mui Ne
Vietnam
11
PristineChlorophyll
0.9
Dissolved O₂
4.59
Nitrate
0.09
#163Kuta Lombok
Indonesia
11
PristineChlorophyll
1.0
Dissolved O₂
4.59
Nitrate
0.01
#164Durban Bay of Plenty
South Africa
11
PristineChlorophyll
1.2
Dissolved O₂
4.89
Nitrate
0.01
#165Dover
United Kingdom
11
PristineChlorophyll
1.4
Dissolved O₂
5.48
Nitrate
0.38
#166Bournemouth
United Kingdom
11
PristineChlorophyll
1.7
Dissolved O₂
5.49
Nitrate
0.39
#167Thurso East
United Kingdom
11
PristineChlorophyll
1.8
Dissolved O₂
5.99
Nitrate
3.65
#168Bamburgh
United Kingdom
11
PristineChlorophyll
2.0
Dissolved O₂
6.00
Nitrate
2.48
#169Nazaré
Portugal
11
PristineChlorophyll
2.3
Dissolved O₂
5.82
Nitrate
1.11
#170Sunset Beach
United States
12
PristineChlorophyll
0.1
Dissolved O₂
4.66
Nitrate
0.00
#171Waimea Bay
United States
12
PristineChlorophyll
0.1
Dissolved O₂
4.66
Nitrate
0.00
#172Laniakea
United States
12
PristineChlorophyll
0.1
Dissolved O₂
4.66
Nitrate
0.00
#173Pipeline
United States
12
PristineChlorophyll
0.1
Dissolved O₂
4.66
Nitrate
0.00
#174Cloudbreak
Fiji
12
PristineChlorophyll
0.1
Dissolved O₂
4.68
Nitrate
0.00
#175Restaurants (Namotu)
Fiji
12
PristineChlorophyll
0.2
Dissolved O₂
4.68
Nitrate
0.00
#176Pichilemu
Chile
12
PristineChlorophyll
0.7
Dissolved O₂
5.75
Nitrate
2.37
#177Lakey Peak
Indonesia
12
PristineChlorophyll
0.7
Dissolved O₂
4.69
Nitrate
0.01
#178Kovalam
India
12
PristineChlorophyll
0.7
Dissolved O₂
4.54
Nitrate
0.02
#179Taitung
Taiwan
12
PristineChlorophyll
0.8
Dissolved O₂
4.50
Nitrate
0.09
#180Bocas del Toro
Panama
12
PristineChlorophyll
0.9
Dissolved O₂
4.48
Nitrate
0.42
#181Nihiwatu
Indonesia
12
PristineChlorophyll
1.0
Dissolved O₂
4.59
Nitrate
0.01
#182Padang Padang
Indonesia
12
PristineChlorophyll
1.0
Dissolved O₂
4.55
Nitrate
0.01
#183Manorbier
United Kingdom
12
PristineChlorophyll
1.4
Dissolved O₂
5.60
Nitrate
1.85
#184Dunnet Bay
United Kingdom
12
PristineChlorophyll
1.8
Dissolved O₂
5.96
Nitrate
3.87
#185Bloubergstrand
South Africa
12
PristineChlorophyll
2.4
Dissolved O₂
5.74
Nitrate
0.23
#186Muizenberg
South Africa
12
PristineChlorophyll
2.5
Dissolved O₂
5.87
Nitrate
0.37
#187Punta de Mita
Mexico
13
PristineChlorophyll
0.6
Dissolved O₂
4.70
Nitrate
0.07
#188Varkala
India
13
PristineChlorophyll
0.8
Dissolved O₂
4.60
Nitrate
0.02
#189Ichinomiya
Japan
13
PristineChlorophyll
1.3
Dissolved O₂
4.80
Nitrate
0.36
#190Tsurigasaki Beach
Japan
13
PristineChlorophyll
1.3
Dissolved O₂
4.80
Nitrate
0.36
#191Tiree
United Kingdom
13
PristineChlorophyll
1.4
Dissolved O₂
5.84
Nitrate
5.22
#192Hoddevik
Norway
13
PristineChlorophyll
2.2
Dissolved O₂
6.05
Nitrate
3.80
#193Mount Maunganui
New Zealand
13
PristineChlorophyll
2.3
Dissolved O₂
5.77
Nitrate
0.15
#194Krui
Indonesia
14
PristineChlorophyll
0.9
Dissolved O₂
4.64
Nitrate
1.14
#195Dakar Yoff
Senegal
14
PristineChlorophyll
0.9
Dissolved O₂
4.56
Nitrate
0.01
#196Sayulita
Mexico
14
PristineChlorophyll
1.0
Dissolved O₂
4.70
Nitrate
0.07
#197Pascuales
Mexico
14
PristineChlorophyll
1.0
Dissolved O₂
4.62
Nitrate
0.41
#198Sebastian Inlet
United States
14
PristineChlorophyll
1.5
Dissolved O₂
4.54
Nitrate
0.01
#199Playa Hermosa
Costa Rica
14
PristineChlorophyll
1.5
Dissolved O₂
4.69
Nitrate
0.03
#200Ericeira
Portugal
14
PristineChlorophyll
1.6
Dissolved O₂
-
Nitrate
-
#201Ribeira d'Ilhas
Portugal
14
PristineChlorophyll
1.6
Dissolved O₂
-
Nitrate
-
#202Joss Bay
United Kingdom
14
PristineChlorophyll
1.8
Dissolved O₂
5.50
Nitrate
0.25
#203Sandsend
United Kingdom
14
PristineChlorophyll
2.7
Dissolved O₂
5.86
Nitrate
0.60
#204Runswick Bay
United Kingdom
14
PristineChlorophyll
2.7
Dissolved O₂
5.86
Nitrate
0.60
#205Baleal
Portugal
14
PristineChlorophyll
3.1
Dissolved O₂
5.82
Nitrate
1.12
#206Peniche/Supertubos
Portugal
14
PristineChlorophyll
3.1
Dissolved O₂
5.82
Nitrate
1.12
#207Lanuza
Philippines
15
PristineChlorophyll
0.4
Dissolved O₂
4.43
Nitrate
0.04
#208Baisha Bay
Taiwan
15
PristineChlorophyll
0.8
Dissolved O₂
4.62
Nitrate
0.20
#209Sidi Kaouki
Morocco
15
PristineChlorophyll
1.8
Dissolved O₂
5.37
Nitrate
0.08
#210Essaouira
Morocco
15
PristineChlorophyll
1.8
Dissolved O₂
5.33
Nitrate
0.02
#211G-Land
Indonesia
15
PristineChlorophyll
2.1
Dissolved O₂
4.66
Nitrate
0.01
#212Easkey
Ireland
15
PristineChlorophyll
3.1
Dissolved O₂
5.89
Nitrate
3.34
#213Troncones
Mexico
16
CleanChlorophyll
0.7
Dissolved O₂
5.00
Nitrate
0.68
#214Putsborough
United Kingdom
16
CleanChlorophyll
1.4
Dissolved O₂
5.57
Nitrate
4.80
#215Eoropie
United Kingdom
16
CleanChlorophyll
1.5
Dissolved O₂
5.92
Nitrate
7.27
#216Santa Cruz
Portugal
16
CleanChlorophyll
1.9
Dissolved O₂
-
Nitrate
-
#217Llangennith
United Kingdom
16
CleanChlorophyll
2.3
Dissolved O₂
5.60
Nitrate
2.43
#218Dakhla
Morocco
16
CleanChlorophyll
2.5
Dissolved O₂
5.08
Nitrate
0.01
#219Tamarin Bay
Mauritius
17
CleanChlorophyll
0.1
Dissolved O₂
4.81
Nitrate
0.00
#220Reykjanes Peninsula
Iceland
17
CleanChlorophyll
0.5
Dissolved O₂
6.33
Nitrate
10.35
#221Piha
New Zealand
17
CleanChlorophyll
1.5
Dissolved O₂
5.71
Nitrate
0.02
#222Máncora
Peru
17
CleanChlorophyll
1.7
Dissolved O₂
5.09
Nitrate
0.38
#223Saunton Sands
United Kingdom
17
CleanChlorophyll
1.9
Dissolved O₂
5.57
Nitrate
4.75
#224Woolacombe
United Kingdom
17
CleanChlorophyll
1.9
Dissolved O₂
5.57
Nitrate
4.75
#225Croyde
United Kingdom
17
CleanChlorophyll
1.9
Dissolved O₂
5.57
Nitrate
4.80
#226Pavones
Costa Rica
17
CleanChlorophyll
2.0
Dissolved O₂
4.64
Nitrate
0.26
#227Medewi
Indonesia
17
CleanChlorophyll
2.6
Dissolved O₂
4.61
Nitrate
0.01
#228Brimms Ness
United Kingdom
18
CleanChlorophyll
3.4
Dissolved O₂
5.96
Nitrate
4.64
#229Outer Banks
United States
18
CleanChlorophyll
3.4
Dissolved O₂
5.39
Nitrate
0.38
#230Cayton Bay
United Kingdom
18
CleanChlorophyll
3.6
Dissolved O₂
5.86
Nitrate
0.60
#231Scarborough
United Kingdom
18
CleanChlorophyll
3.6
Dissolved O₂
5.87
Nitrate
0.61
#232Torres
Brazil
18
CleanChlorophyll
3.6
Dissolved O₂
5.48
Nitrate
0.03
#233Jericoacoara
Brazil
19
CleanChlorophyll
0.6
Dissolved O₂
4.47
Nitrate
0.01
#234Matosinhos
Portugal
19
CleanChlorophyll
3.9
Dissolved O₂
5.69
Nitrate
2.43
#235Anchor Point
Morocco
19
CleanChlorophyll
3.9
Dissolved O₂
5.37
Nitrate
0.04
#236Taghazout
Morocco
19
CleanChlorophyll
3.9
Dissolved O₂
5.38
Nitrate
0.05
#237La Torche
France
20
CleanChlorophyll
3.4
Dissolved O₂
5.60
Nitrate
4.16
#238Rockaway Beach
United States
20
CleanChlorophyll
4.5
Dissolved O₂
5.76
Nitrate
1.03
#239Lobitos
Peru
21
CleanChlorophyll
1.8
Dissolved O₂
4.82
Nitrate
2.62
#240Costa da Caparica
Portugal
21
CleanChlorophyll
3.9
Dissolved O₂
5.59
Nitrate
0.78
#241Tynemouth
United Kingdom
21
CleanChlorophyll
4.3
Dissolved O₂
5.97
Nitrate
1.66
#242Filey
United Kingdom
22
CleanChlorophyll
5.2
Dissolved O₂
5.86
Nitrate
0.09
#243Widemouth Bay
United Kingdom
23
CleanChlorophyll
2.7
Dissolved O₂
-
Nitrate
-
#244New Smyrna Beach
United States
23
CleanChlorophyll
4.0
Dissolved O₂
4.66
Nitrate
0.04
#245Langland Bay
United Kingdom
24
CleanChlorophyll
2.9
Dissolved O₂
5.56
Nitrate
4.54
#246Elands Bay
South Africa
24
CleanChlorophyll
5.8
Dissolved O₂
6.35
Nitrate
0.14
#247Chicama
Peru
25
CleanChlorophyll
1.0
Dissolved O₂
4.70
Nitrate
6.57
#248Cocoa Beach
United States
25
CleanChlorophyll
2.7
Dissolved O₂
4.61
Nitrate
0.03
#249Caswell Bay
United Kingdom
25
CleanChlorophyll
3.1
Dissolved O₂
5.57
Nitrate
4.75
#250Wrightsville Beach
United States
25
CleanChlorophyll
3.9
Dissolved O₂
4.92
Nitrate
1.91
#251Mirleft
Morocco
25
CleanChlorophyll
5.7
Dissolved O₂
5.39
Nitrate
0.03
#252Cimaja
Indonesia
26
CleanChlorophyll
2.9
Dissolved O₂
-
Nitrate
-
#253Strandhill
Ireland
27
CleanChlorophyll
6.3
Dissolved O₂
5.89
Nitrate
3.34
#254Folly Beach
United States
28
CleanChlorophyll
5.0
Dissolved O₂
4.91
Nitrate
1.86
#255Praia do Guincho
Portugal
28
CleanChlorophyll
5.7
Dissolved O₂
5.59
Nitrate
0.82
#256Carcavelos
Portugal
28
CleanChlorophyll
5.7
Dissolved O₂
5.59
Nitrate
0.82
#257Raglan
New Zealand
30
CleanChlorophyll
0.9
Dissolved O₂
-
Nitrate
-
#258Ocean Beach SF
United States
31
ModerateChlorophyll
4.9
Dissolved O₂
5.72
Nitrate
0.97
#259Bolinas
United States
32
ModerateChlorophyll
4.6
Dissolved O₂
5.74
Nitrate
1.13
#260Tybee Island
United States
35
ModerateChlorophyll
6.3
Dissolved O₂
4.88
Nitrate
2.42
#261Rest Bay
United Kingdom
38
ModerateChlorophyll
5.5
Dissolved O₂
5.66
Nitrate
5.81
#262Cannon Beach
United States
38
ModerateChlorophyll
9.4
Dissolved O₂
6.08
Nitrate
0.67
#263Pacific City
United States
43
ModerateChlorophyll
5.3
Dissolved O₂
-
Nitrate
-
#264Portrush
United Kingdom
43
ModerateChlorophyll
38.1
Dissolved O₂
5.85
Nitrate
3.96
#265Bundoran
Ireland
48
ModerateChlorophyll
6.0
Dissolved O₂
-
Nitrate
-
#266Mullaghmore Head
Ireland
48
ModerateChlorophyll
6.0
Dissolved O₂
-
Nitrate
-
#267Lahinch
Ireland
100
PoorChlorophyll
11.0
Dissolved O₂
-
Nitrate
-
Satellite data from Copernicus Marine. Data from 23 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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