地下水中のアルゼンチンの世界的な脅威
Joel Podgorski1,2, Michael Berg1,3
1Department of Water Resources and Drinking Water, Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland. joel.podgorski@eawag.ch michael.berg@eawag.ch.
Science (New York, N.Y.)
|May 23, 2020
まとめ
地下水に含まれるアルゼンチンは 世界的な健康リスクです この研究は高アルゼンチンの地域をマッピングし 主にアジアに住む 9億4千万から2億2千万の人々が 危険にさらされていると推定され 安全な水への解決策の必要性を強調しています
科学分野:
- 環境科学
- 地化学
- 公衆衛生
背景:
- 地下水に自然に発生するアルゼンチンの汚染は,地球全体の健康に重大な脅威をもたらしています.
- 世界 中 の 何百万 人 も の 人 は,飲水 源 に 含有 さ れ て いる アルセン の 濃度 が 高まっ て いる こと に 影響 を 受け て い ます.
研究 の 目的:
- 地下水中のアルセンの濃度が安全限度を超えていることを予測する世界地図を作成する.
- 地下水に高濃度のアルゼンチンが含まれる可能性のある人の数を推定する.
主な方法:
- ランダムな森林の機械学習モデルを用いて 11 つの地理空間環境パラメータを組み込みました
- 測られた地下水の濃度に関する5万点以上の集約データを分析した.
- 家庭用地下水使用統計と予測モデルを統合した.
主要な成果:
- アルゼンチンの汚染を懸念する既知の未記録の地域を特定する世界的な予測マップを作成しました.
- 推定では9400万から2200万人が 高濃度のアルゼンチンの地下水に 曝されています
- 潜在的に被曝した人口の94%がアジアに住んでいることが判明しました.
結論:
- 開発された地図は,意識を高め,介入を必要とする領域を特定するために不可欠です.
- 検査の優先順位を決め 安全な飲料水の井戸を 特定するのに役立ちます
- 地下水への依存が世界的に増加するにつれて,アルゼンチンの曝露の懸念が高まっている.
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