白洋淀水环境污染防治对策

Strategies for controlling water environmental pollution in the area of Baiyangdian Lake.

研究表明目前我国白洋淀水资源蓄水量不足20世纪60年代的1/10,且水质不断恶化,Ⅳ类水面占29.7%,Ⅴ类水面占51.4%,超Ⅴ类水面占18.9%。白洋淀水环境污染物以有机污染物为主,CODMn和总N、总P严重超标,BOD5亦受到不同程度污染,总体达轻度富营养化程度,并提出防治对策。

The surveys show that the water storage of Baiyangdian Lake is only 1/10 of that during 1960s, and the water quality of Baiyangdian Lake has been still becoming worse and worse, the water area with water qualities of grade Ⅳ is 29.7 % of the total area, and the area of grade V is 51.4 % , and the area that is worse than grade Ⅴ is 18.9 %. The pollutant sources in Baiyangdian Lake are mainly organic contaminants, in which CODM, （chemlcal oxygen demand）, TN （total nitrogen） and TP （total phosphate） are much higher than the standards, and BOD5 （biochemical oxygen demand） is more or less contaminated too. Totally, the water environment in Balyangdian Lake is of light eutrophication. Finally, the strategies to control water pollution of the lake are put forward.