摘要
评价了汉江流域水质污染现状:汉江流域干流水质好于支流,从上游至下游污染状况逐渐上升,主要污染物为COD、TP、NH3-N,污染特征为有机污染型。对汉江流域污染源进行了调查:汉江流域面源污染大于点源,排放负荷较大的是农业地表径流、城镇生活污水、畜禽养殖。
The current pollution situation of Hanjiang river was presented. The water quality of mainstream is better than tributaries. The pollution level is increased from upstream to downstream. The main pollutants are COD, TP and NH3 - N. The type is organic pollution. The pollution sources of Hanjiang river basin were surveyed. The resuits showed that the non -point source pollution was more than the point source. The main discharge loads were from agricultural surface runoff and urban domestic wastewater and livestock raising.
出处
《环境科学导刊》
2011年第5期42-44,共3页
Environmental Science Survey
关键词
水污染现状
污染源
调查
汉江流域
water pollution situation
pollution source
survey
Hanjiang river basin
