
清潔な水への世界的なアクセスは、世界中の人々の健康、福祉、そして発展に影響を与える重大な地球規模の課題です。近年、状況は改善しているものの、依然として何百万人もの人々が安全で清潔な飲料水源にアクセスできていません。
世界保健機関(WHO)とユニセフによると、2020年現在、世界で約20億人が安全に管理された飲料水にアクセスできない。[ 1 ]このアクセス不足は、水系感染症に対する脆弱性の増大、教育機会の減少、ジェンダーの不平等、経済的負担 など、さまざまな結果につながる。
世界保健機関(WHO)の定義によると、改善された水源とは、人間の飲用に十分かつ安全な水を供給する飲料水源を指します。改善された水源の例としては、水道管、保護された井戸、手押しポンプ付きの井戸、包装された水または配水された水、適切な処理を施した雨水収集システムなどが挙げられます。[ 2 ]
| ランク | 国 / 従属国 | %非汚染水 | 年 |
|---|---|---|---|
| 1 | 47.40% | 2022 | |
| 2 | 42.00% | 2022 | |
| 3 | 40.90% | 2022 | |
| 4 | 37.10% | 2022 | |
| 5 | 35.50% | 2022 | |
| 6 | 33.00% | 2022 | |
| 7 | 32.38% | 2017 | |
| 8 | 31.50% | 2022 | |
| 9 | 30.55% | 2016 | |
| 10 | 28.50% | 2022 | |
| 11 | 27.20% | 2022 | |
| 12 | 27.00% | 2022 | |
| 13 | 26.90% | 2020 | |
| 14 | 25.30% | 2022 | |
| 15 | 24.60% | 2022 | |
| 16 | 23.40% | 2022 | |
| 17 | 23.20% | 2022 | |
| 18 | 23.00% | 2022 | |
| 19 | 22.90% | 2022 | |
| 20 | 22.80% | 2022 | |
| 21 | 21.50% | 2022 | |
| 22 | 21.00% | 2022 | |
| 23 | 20.50% | 2022 | |
| 24 | 20.00% | 2022 | |
| 25 | 18.90% | 2022 | |
| 26 | 18.20% | 2022 | |
| 27 | 16.90% | 2022 | |
| 28 | 16.78% | 2020 | |
| 29 | 16.70% | 2022 | |
| 30 | 16.60% | 2022 | |
| 31 | 16.40% | 2022 | |
| 32 | 16.20% | 2022 | |
| 33 | 16.10% | 2022 | |
| 34 | 15.80% | 2022 | |
| 35 | 15.75% | 2020 | |
| 36 | 15.60% | 2022 | |
| 37 | 15.50% | 2022 | |
| 38 | 15.40% | 2022 | |
| 39 | 14.40% | 2022 | |
| 40 | 13.30% | 2022 | |
| 13.30% | 2022 | ||
| 42 | 11.70% | 2022 | |
| 43 | 11.10% | 2022 | |
| 44 | 11.00% | 2022 | |
| 11.00% | 2022 | ||
| 46 | 10.90% | 2022 | |
| 47 | 10.50% | 2022 | |
| 48 | 9.60% | 2022 | |
| 49 | 9.30% | 2022 | |
| 50 | 9.10% | 2022 | |
| 51 | 8.93% | 2019 | |
| 52 | 8.90% | 2022 | |
| 53 | 8.80% | 2022 | |
| 54 | 8.40% | 2022 | |
| 55 | 8.10% | 2022 | |
| 56 | 7.30% | 2022 | |
| 57 | 7.00% | 2022 | |
| 58 | 6.40% | 2022 | |
| 59 | 6.30% | 2022 | |
| 60 | 6.20% | 2022 | |
| 6.20% | 2022 | ||
| 62 | 5.70% | 2022 | |
| 5.70% | 2022 | ||
| 64 | 5.60% | 2022 | |
| 65 | 5.40% | 2022 | |
| 66 | 5.10% | 2022 | |
| 67 | 5.00% | 2022 | |
| 68 | 4.90% | 2022 | |
| 69 | 4.85% | 2018 | |
| 70 | 4.69% | 2020 | |
| 71 | 4.60% | 2022 | |
| 4.60% | 2022 | ||
| 73 | 4.58% | 2017 | |
| 74 | 4.50% | 2022 | |
| 75 | 4.40% | 2022 | |
| 76 | 4.30% | 2022 | |
| 77 | 4.00% | 2022 | |
| 78 | 3.90% | 2022 | |
| 79 | 3.80% | 2022 | |
| 80 | 3.60% | 2022 | |
| 3.60% | 2022 | ||
| 3.60% | 2022 | ||
| 83 | 3.50% | 2022 | |
| 84 | 3.21% | 2017 | |
| 85 | 3.10% | 2022 | |
| 86 | 3.00% | 2022 | |
| 3.00% | 2022 | ||
| 88 | 2.90% | 2022 | |
| 89 | 2.80% | 2022 | |
| 2.80% | 2022 | ||
| 91 | 2.70% | 2022 | |
| 92 | 2.62% | 2020 | |
| 93 | 2.52% | 2017 | |
| 94 | 2.50% | 2022 | |
| 2.50% | 2022 | ||
| 96 | 2.40% | 2022 | |
| 97 | 2.30% | 2022 | |
| 2.30% | 2022 | ||
| 2.30% | 2022 | ||
| 2.30% | 2022 | ||
| 2.30% | 2022 | ||
| 102 | 2.13% | 2016 | |
| 103 | 2.00% | 2022 | |
| 2.00% | 2022 | ||
| 105 | 1.90% | 2022 | |
| 1.90% | 2022 | ||
| 107 | 1.70% | 2022 | |
| 108 | 1.60% | 2022 | |
| 1.60% | 2022 | ||
| 110 | 1.39% | 2017 | |
| 111 | 1.32% | 2007 | |
| 112 | 1.30% | 2022 | |
| 1.30% | 2022 | ||
| 114 | 1.28% | 2020 | |
| 115 | 1.20% | 2022 | |
| 1.20% | 2022 | ||
| 1.20% | 2022 | ||
| 118 | 1.11% | 2019 | |
| 119 | 1.00% | 2022 | |
| 1.00% | 2022 | ||
| 121 | 0.98% | 2016 | |
| 122 | 0.90% | 2022 | |
| 0.90% | 2022 | ||
| 0.90% | 2022 | ||
| 0.90% | 2022 | ||
| 0.90% | 2022 | ||
| 127 | 0.80% | 2022 | |
| 128 | 0.70% | 2022 | |
| 0.70% | 2022 | ||
| 0.70% | 2022 | ||
| 0.70% | 2022 | ||
| 0.70% | 2022 | ||
| 0.70% | 2022 | ||
| 0.70% | 2022 | ||
| 135 | 0.60% | 2022 | |
| 0.60% | 2022 | ||
| 137 | 0.50% | 2022 | |
| 0.50% | 2022 | ||
| 0.50% | 2022 | ||
| 0.50% | 2022 | ||
| 0.50% | 2017 | ||
| 142 | 0.40% | 2022 | |
| 0.40% | 2022 | ||
| 0.40% | 2022 | ||
| 0.40% | 2022 | ||
| 0.40% | 2022 | ||
| 0.40% | 2022 | ||
| 148 | 0.30% | 2022 | |
| 0.30% | 2022 | ||
| 0.30% | 2022 | ||
| 0.30% | 2022 | ||
| 0.30% | 2022 | ||
| 0.30% | 2022 | ||
| 0.30% | 2022 | ||
| 0.30% | 2022 | ||
| 0.30% | 2022 | ||
| 0.30% | 2022 | ||
| 158 | 0.23% | 2020 | |
| 159 | 0.20% | 2022 | |
| 0.20% | 2022 | ||
| 0.20% | 2022 | ||
| 162 | 0.10% | 2022 | |
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 0.10% | 2022 | ||
| 177 | 0.00% | 2022 | |
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2022 | ||
| 0.00% | 2020 |
安全な飲料水へのアクセスを持つ人口の割合による国の一覧。安全な飲料水とは、信頼性が高く汚染のない、改善された水源から供給される水です。[ 3 ]
| ランク | 国 | 安全な飲料水 へのアクセスを持つ人々 (%) | 年 |
|---|---|---|---|
| 1 | 100.00% | 2022 | |
| 100.00% | 2022 | ||
| 100.00% | 2022 | ||
| 100.00% | 2022 | ||
| 100.00% | 2022 | ||
| 100.00% | 2022 | ||
| 100.00% | 2022 | ||
| 100.00% | 2022 | ||
| 100.00% | 2022 | ||
| 100.00% | 2022 | ||
| 13 | 99.97% | 2022 | |
| 14 | 99.92% | 2022 | |
| 99.92% | 2022 | ||
| 16 | 99.87% | 2022 | |
| 17 | 99.80% | 2022 | |
| 18 | 99.77% | 2022 | |
| 99.77% | 2022 | ||
| 20 | 99.74% | 2022 | |
| 99.74% | 2022 | ||
| 22 | 99.71% | 2022 | |
| 23 | 99.70% | 2022 | |
| 24 | 99.64% | 2022 | |
| 25 | 99.57% | 2022 | |
| 26 | 99.53% | 2022 | |
| 27 | 99.47% | 2022 | |
| 28 | 99.28% | 2022 | |
| 29 | 99.18% | 2022 | |
| 30 | 99.06% | 2022 | |
| 31 | 99.04% | 2022 | |
| 32 | 98.90% | 2022 | |
| 98.90% | 2022 | ||
| 34 | 98.88% | 2022 | |
| 35 | 98.82% | 2022 | |
| 36 | 98.77% | 2022 | |
| 98.77% | 2022 | ||
| 38 | 98.66% | 2022 | |
| 39 | 98.36% | 2020 | |
| 40 | 98.27% | 2022 | |
| 41 | 97.94% | 2020 | |
| 42 | 97.88% | 2022 | |
| 43 | 97.47% | 2022 | |
| 44 | 97.11% | 2022 | |
| 45 | 97.02% | 2022 | |
| 46 | 96.87% | 2022 | |
| 47 | 96.74% | 2020 | |
| 48 | 96.70% | 2022 | |
| 49 | 96.65% | 2022 | |
| 50 | 96.63% | 2022 | |
| 51 | 95.99% | 2022 | |
| 52 | 95.75% | 2022 | |
| 53 | 95.71% | 2022 | |
| 54 | 95.65% | 2022 | |
| 55 | 95.16% | 2022 | |
| 56 | 94.98% | 2022 | |
| 57 | 94.88% | 2022 | |
| 58 | 94.22% | 2022 | |
| 59 | 93.94% | 2022 | |
| 60 | 93.54% | 2022 | |
| 61 | 93.10% | 2022 | |
| 62 | 92.71% | 2022 | |
| 63 | 92.46% | 2022 | |
| 64 | 91.49% | 2022 | |
| 65 | 90.85% | 2022 | |
| 66 | 90.64% | 2022 | |
| 67 | 90.64% | 2022 | |
| 68 | 90.44% | 2022 | |
| 69 | 89.33% | 2020 | |
| 70 | 89.23% | 2022 | |
| 71 | 88.91% | 2022 | |
| 72 | 87.62% | 2022 | |
| 73 | 87.26% | 2022 | |
| 74 | 87.12% | 2017 | |
| 75 | 86.97% | 2022 | |
| 76 | 85.71% | 2022 | |
| 77 | 85.12% | 2022 | |
| 78 | 82.41% | 2022 | |
| 79 | 82.14% | 2007 | |
| 80 | 82.07% | 2022 | |
| 81 | 81.81% | 2022 | |
| 82 | 80.51% | 2022 | |
| 83 | 80.45% | 2022 | |
| 84 | 80.33% | 2022 | |
| 85 | 79.85% | 2022 | |
| 86 | 76.49% | 2022 | |
| 87 | 76.23% | 2022 | |
| 88 | 75.22% | 2022 | |
| 89 | 75.08% | 2022 | |
| 90 | 74.82% | 2022 | |
| 91 | 74.30% | 2022 | |
| 92 | 73.86% | 2022 | |
| 93 | 73.34% | 2022 | |
| 94 | 71.61% | 2022 | |
| 95 | 70.74% | 2022 | |
| 96 | 70.60% | 2022 | |
| 97 | 69.14% | 2022 | |
| 98 | 68.88% | 2022 | |
| 99 | 67.09% | 2022 | |
| 100 | 66.53% | 2022 | |
| 101 | 65.21% | 2022 | |
| 102 | 64.22% | 2022 | |
| 103 | 62.19% | 2022 | |
| 104 | 59.74% | 2022 | |
| 105 | 59.11% | 2022 | |
| 106 | 57.78% | 2022 | |
| 107 | 57.40% | 2022 | |
| 108 | 56.29% | 2022 | |
| 109 | 55.80% | 2022 | |
| 110 | 55.52% | 2020 | |
| 111 | 55.29% | 2022 | |
| 112 | 51.99% | 2022 | |
| 113 | 50.60% | 2022 | |
| 114 | 47.90% | 2022 | |
| 115 | 47.70% | 2022 | |
| 116 | 47.67% | 2022 | |
| 117 | 47.13% | 2022 | |
| 118 | 47.09% | 2022 | |
| 119 | 45.90% | 2020 | |
| 120 | 44.94% | 2022 | |
| 121 | 44.47% | 2022 | |
| 122 | 43.89% | 2022 | |
| 123 | 43.04% | 2022 | |
| 124 | 41.86% | 2022 | |
| 125 | 39.28% | 2022 | |
| 126 | 36.30% | 2022 | |
| 127 | 30.27% | 2022 | |
| 128 | 30.03% | 2022 | |
| 129 | 29.53% | 2022 | |
| 130 | 29.13% | 2022 | |
| 131 | 28.98% | 2022 | |
| 132 | 28.22% | 2022 | |
| 133 | 26.69% | 2022 | |
| 134 | 26.52% | 2022 | |
| 135 | 23.87% | 2022 | |
| 136 | 22.24% | 2022 | |
| 137 | 19.42% | 2022 | |
| 138 | 18.68% | 2022 | |
| 139 | 17.87% | 2022 | |
| 140 | 17.76% | 2022 | |
| 141 | 16.12% | 2022 | |
| 142 | 14.41% | 2022 | |
| 143 | 13.24% | 2022 | |
| 144 | 12.10% | 2020 | |
| 145 | 11.58% | 2022 | |
| 146 | 11.34% | 2022 | |
| 147 | 10.26% | 2022 | |
| 148 | 8.71% | 2022 | |
| 149 | 6.25% | 2022 | |
| 150 | 6.13% | 2022 |