The current water pollution problem is particularly serious, so it is urgent to protect drinking water sources.

当前水污染问题尤为严重，保护饮用水水源刻不容缓。

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Since a number of EHEC infections have been caused by contact with recreational water, it is also important to protect such water areas, as well as drinking-water sources, from animal wastes.

由于很多肠出血性大肠杆菌感染因接触游憩用水所致，对于避免这类水域和饮用水源遭动物粪便污染也很重要。

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To protect the drinking water sources environment, the present environment situation of 18 centralized urban drinking water sources in Banan district were investigated.

从保护巴南区饮用水源地环境的角度出发，首次对巴南区18个集中式城镇饮用水源地的环境现状进行了调查研究。

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