Current exposure sources include lead paint, folk remedies, glazed pottery, soil and drinking water in some urban areas with older housing.
目前仍然存在的暴露源包括：铅涂料、民间偏方、陶器、郊区的土壤和饮用水。
The Sichuan Urban Environment Project aims to halt the deterioration of water quality of the Min, Tuo, and Yangtze Rivers, so that the rivers could be used as sources for drinking water.
四川城市环境项目的目标是制止长江、泯江、沱江水质发生恶化，使其能够作为饮用水水源。
The pollution of potassium permanganate was caused by the point pollution sources mainly, e. g. the waste water from factories and urban families.
高锰酸盐指数主要是由点源污染引起，即工业废水和城镇生活污水的污染为主。
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