Because of natural high arsenic in drinking water and no pollution else, it was drinking water type of endemic arsenicosis.
由于没有其他环境砷污染，水砷含量高是自然形成的，因此属于饮水型地方性砷中毒。
2
Because they measured success only by the number of Wells built and the decline of waterborne illnesses, they missed early signs of the arsenicosis crisis.