在滦平县北里营乡有一条小溪,以往清彻透明,可见鱼虾,由此溪水渗滤的大口井水,是该村的主要饮用水源之一。1991年3月该村居民多次反映水质感官性状不良(有色、混浊、水面有白沫、喝之有苦涩味),鱼虾死亡,做豆腐不成形。接着又发生饮村旁溪水的羊陆续死了100多只,鸭、鹅死了10多只,我们及时赶到现场,并进行了现场调查及样品采集。 在调查中我们了解到,污染来自村上游约500 In Luanping County North Camp Township has a stream, clear and transparent in the past, we can see the fish and shrimp, which percolate large well water, is one of the village’s main source of drinking water. In 1991 March the village residents on many occasions to reflect the water quality sensory traits (colored, cloudy, white foam on the surface, drinking bitter astringency), fish and shrimp death, tofu is not formed. Followed by the drinking water next to the stream of sheep died one after another more than 100, ducks, goose died more than 10 only, we arrived on the scene in time and conducted a site survey and sample collection. In the survey we learned that the pollution came from the village about 500