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评价水环境化学污染与健康危害之间关系的重要性日益增长。这是因为地球上总水量中只有0.6%的地下水、占可利用淡水0.009%的淡水湖泊水和0.0001%的河水是当今人类可利用的水。在如此少量的水体中,近来遭受工业和城市的化学物质污染的范围和程度又明显增加。根据最近的资料指出,美国被工业污染物污染的水域占72%,其中以美国东北部和五大湖区最严重,污染水域达到88%。科学调查发现饮水中有机化合物的危害作用(如城市饮水中检出致癌物质)比过去几年明显增加;工业废物中的致癌物质排入到河流和湖泊
The importance of assessing the relationship between water pollution and health hazards is growing. This is because only 0.6% of the total groundwater on Earth, freshwater lake water and 0.0001% of freshwater available 0.009% are today’s human-available water. In such a small amount of water, the scope and extent of recent chemical and industrial pollution in industries and cities have increased significantly. According to recent sources, the United States accounts for 72% of the total area contaminated by industrial pollutants, of which 88% are the most polluted waters in the northeastern United States and the Great Lakes region. Scientific investigation found that the harmful effects of organic compounds in drinking water (such as carcinogens detected in urban drinking water) increased significantly over the past few years; carcinogenic substances in industrial waste discharged into rivers and lakes