Lake water quality turbidity (%) by country
Countries reporting
132
Highest
58.1%
Iran (Islamic Republic of)
Lowest
0.0%
Gambia
Median
14.5%
Years covered
5
2017β2021
Data points
850
What the numbers show
Lake water quality turbidity (%) is currently reported for 132 countries. The highest value is 58.1% in Iran (Islamic Republic of); the lowest is 0.0% in Gambia.
The median across all reporting countries is 14.5%, and the mean is 17.0%.
Lake water quality turbidity: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Iran (Islamic Republic of) | 58.1% | 2021 | β | rising |
| 2 | Burkina Faso | 51.5% | 2021 | β | flat |
| 3 | Cambodia | 46.8% | 2021 | β | rising |
| 4 | Djibouti | 46.5% | 2021 | β | rising |
| 5 | Eswatini | 44.1% | 2021 | β | falling |
| 6 | Zimbabwe | 39.9% | 2021 | β | falling |
| 7 | Libya | 38.4% | 2021 | β | rising |
| 8 | Bosnia and Herzegovina | 37.8% | 2021 | β | rising |
| 9 | Botswana | 37.1% | 2021 | β | falling |
| 10 | Morocco | 33.0% | 2021 | β | rising |
| 11 | CΓ΄te d'Ivoire | 33.0% | 2021 | β | rising |
| 12 | Lithuania | 32.5% | 2021 | β | rising |
| 13 | Suriname | 32.0% | 2021 | β | rising |
| 14 | Chad | 31.8% | 2021 | β | falling |
| 15 | Angola | 31.5% | 2021 | β | rising |
| 16 | Haiti | 31.1% | 2021 | β | volatile |
| 17 | Czechia | 29.6% | 2021 | β | rising |
| 18 | Guinea | 29.1% | 2021 | β | rising |
| 19 | Tunisia | 28.5% | 2021 | β | rising |
| 20 | Venezuela (Bolivarian Republic of) | 27.9% | 2021 | β | falling |
| 21 | Sierra Leone | 27.9% | 2021 | β | rising |
| 22 | Peru | 27.9% | 2021 | β | falling |
| 23 | Latvia | 27.6% | 2021 | β | rising |
| 24 | Ireland | 27.1% | 2021 | β | rising |
| 25 | Algeria | 26.8% | 2021 | β | rising |
| 26 | Bolivia (Plurinational State of) | 26.6% | 2021 | β | falling |
| 27 | Paraguay | 26.2% | 2021 | β | falling |
| 28 | Norway | 25.7% | 2021 | β | falling |
| 29 | Spain | 24.7% | 2021 | β | rising |
| 30 | United Kingdom of Great Britain and Northern Ireland | 24.3% | 2021 | β | rising |
| 31 | Syrian Arab Republic | 24.1% | 2021 | β | rising |
| 32 | Nigeria | 23.4% | 2021 | β | falling |
| 33 | Denmark | 23.3% | 2021 | β | rising |
| 34 | Republic of Moldova | 23.3% | 2021 | β | falling |
| 35 | Chile | 23.0% | 2021 | β | rising |
| 36 | Viet Nam | 22.7% | 2021 | β | rising |
| 37 | United Republic of Tanzania | 22.6% | 2021 | β | rising |
| 38 | Ukraine | 22.4% | 2021 | β | rising |
| 39 | Colombia | 22.3% | 2021 | β | falling |
| 40 | Madagascar | 22.2% | 2021 | β | falling |
| 41 | Burundi | 22.2% | 2021 | β | falling |
| 42 | Senegal | 22.0% | 2021 | β | rising |
| 43 | Cameroon | 22.0% | 2021 | β | falling |
| 44 | Finland | 20.3% | 2021 | β | falling |
| 45 | Mali | 20.2% | 2021 | β | rising |
| 46 | Estonia | 19.8% | 2021 | β | rising |
| 47 | Panama | 19.7% | 2021 | β | rising |
| 48 | Myanmar | 19.5% | 2021 | β | rising |
| 49 | Portugal | 19.1% | 2021 | β | rising |
| 50 | Croatia | 18.6% | 2021 | β | falling |
| 51 | Poland | 18.1% | 2021 | β | falling |
| 52 | Australia | 17.9% | 2021 | β | rising |
| 53 | Australia and New Zealand | 17.7% | 2021 | β | rising |
| 54 | China | 17.5% | 2021 | β | flat |
| 55 | Honduras | 17.0% | 2021 | β | rising |
| 56 | Iceland | 16.8% | 2021 | β | rising |
| 57 | Iraq | 16.8% | 2021 | β | falling |
| 58 | Brazil | 16.5% | 2021 | β | falling |
| 59 | Argentina | 16.5% | 2021 | β | falling |
| 60 | Russian Federation | 16.4% | 2021 | β | falling |
| 61 | Uzbekistan | 16.4% | 2021 | β | falling |
| 62 | Canada | 16.3% | 2021 | β | falling |
| 63 | Japan | 15.0% | 2021 | β | falling |
| 64 | Papua New Guinea | 14.9% | 2021 | β | rising |
| 64 | Melanesia | 14.9% | 2021 | β | rising |
| 66 | Togo | 14.6% | 2021 | β | rising |
| 67 | Mexico | 14.5% | 2021 | β | rising |
| 68 | Sweden | 14.2% | 2021 | β | rising |
| 69 | Sri Lanka | 14.1% | 2021 | β | falling |
| 70 | New Zealand | 13.9% | 2021 | β | rising |
| 71 | Gabon | 13.7% | 2021 | β | falling |
| 72 | Benin | 13.7% | 2021 | β | rising |
| 73 | Mongolia | 13.4% | 2021 | β | falling |
| 74 | Austria | 13.2% | 2021 | β | rising |
| 75 | Cuba | 13.0% | 2021 | β | rising |
| 76 | Thailand | 12.8% | 2021 | β | rising |
| 77 | Democratic People's Republic of Korea | 12.8% | 2021 | β | falling |
| 78 | Philippines | 12.8% | 2021 | β | rising |
| 79 | Germany | 12.7% | 2021 | β | rising |
| 80 | Costa Rica | 12.7% | 2021 | β | rising |
| 81 | Mozambique | 12.6% | 2021 | β | rising |
| 82 | Bahamas | 12.6% | 2021 | β | falling |
| 83 | Rwanda | 12.3% | 2021 | β | falling |
| 84 | Indonesia | 12.0% | 2021 | β | falling |
| 85 | Pakistan | 11.6% | 2021 | β | rising |
| 86 | Kazakhstan | 10.6% | 2021 | β | falling |
| 87 | TΓΌrkiye | 10.4% | 2021 | β | flat |
| 88 | Montenegro | 10.3% | 2021 | β | falling |
| 89 | Malaysia | 10.3% | 2021 | β | rising |
| 90 | El Salvador | 10.3% | 2021 | β | falling |
| 91 | Namibia | 10.2% | 2021 | β | volatile |
| 92 | Italy | 9.9% | 2021 | β | rising |
| 93 | Tajikistan | 9.7% | 2021 | β | falling |
| 94 | Ethiopia | 9.5% | 2021 | β | falling |
| 95 | Ecuador | 9.5% | 2021 | β | volatile |
| 96 | Afghanistan | 9.1% | 2021 | β | volatile |
| 97 | Slovakia | 9.0% | 2021 | β | falling |
| 98 | Guatemala | 8.5% | 2021 | β | volatile |
| 99 | Greece | 8.3% | 2021 | β | rising |
| 100 | Turkmenistan | 8.2% | 2021 | β | rising |
| 101 | Congo | 8.2% | 2021 | β | falling |
| 102 | Switzerland | 8.1% | 2021 | β | rising |
| 103 | Bulgaria | 8.0% | 2021 | β | falling |
| 104 | Azerbaijan | 7.0% | 2021 | β | falling |
| 105 | Israel | 6.8% | 2021 | β | falling |
| 106 | Bangladesh | 6.6% | 2021 | β | falling |
| 107 | Egypt | 6.6% | 2021 | β | falling |
| 108 | South Sudan | 6.4% | 2021 | β | falling |
| 109 | Uruguay | 6.3% | 2021 | β | volatile |
| 110 | India | 6.2% | 2021 | β | falling |
| 111 | Romania | 6.2% | 2021 | β | flat |
| 112 | France | 5.8% | 2021 | β | flat |
| 113 | Belize | 5.4% | 2021 | β | volatile |
| 114 | Jordan | 5.1% | 2021 | β | falling |
| 115 | North Macedonia | 4.8% | 2021 | β | rising |
| 116 | Albania | 4.7% | 2021 | β | falling |
| 117 | Lao People's Democratic Republic | 4.7% | 2021 | β | rising |
| 118 | Sudan | 4.6% | 2021 | β | falling |
| 119 | Nicaragua | 4.3% | 2021 | β | rising |
| 120 | Malawi | 4.1% | 2021 | β | falling |
| 121 | Somalia | 3.9% | 2021 | β | volatile |
| 122 | Uganda | 3.8% | 2021 | β | falling |
| 123 | Hungary | 3.4% | 2021 | β | falling |
| 124 | Mauritania | 3.4% | 2021 | β | volatile |
| 125 | Democratic Republic of the Congo | 3.1% | 2021 | β | falling |
| 126 | Kyrgyzstan | 2.8% | 2021 | β | falling |
| 127 | Zambia | 2.6% | 2021 | β | volatile |
| 128 | Ghana | 2.4% | 2021 | β | falling |
| 129 | Armenia | 2.3% | 2021 | β | volatile |
| 130 | Kenya | 1.2% | 2021 | β | falling |
| 131 | Dominican Republic | 0.0% | 2021 | β | volatile |
| 132 | Gambia | 0.0% | 2021 | β | flat |
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
- Northern Africa 21.8%
- Northern Europe 21.3%
- Southern Asia 20.9%
- Northern Africa and Western Asia 20.3%
- Southern Africa 19.5%
- South America 19.4%
- Western Africa 19.3%
- Central African Republic 18.7%
- Latin America and the Caribbean 18.6%
- Southern Europe 18.0%
- Africa 17.9%
- Middle Africa 17.7%