摘要
本文应用底栖生物和鱼类的污水生物体系的划分阶段,以及残毒量测定,以评价上海市第二水源长江二个取水口的环境质量。1989年桔水期(2—3月)和丰水期(7月)在长江口河流段南岸的浏河和浪港二个站位,在二个汛期中进行潮间带底栖生物、4至7月每月二次的鱼类种类、数量等调查和指示种的研究,以及刚毛藻、水绵、河蚬和无齿相手蟹四种底栖生物的总汞、铜、锌、镉、铅、六六六、滴滴涕等含量测定,认为二个取水口的环境复杂,综合评价结果应是β-中污型(βm),属尚清洁带。底栖生物和鱼类以喜食底泥有机质的种类占优势,底栖生物残毒主要是重金属。
The environmental quality of two water intakes in the Chang-jiang River, the second water source of Shanghai, was assessed by applying the phase-dividing method of saprobic system of benthos and fishes and measuring the remnant toxin contents of the system. Two sampling stations, Liuhe and Langgang, both located on the southern shore of Changjiang Estuary, were selected for study. Benthos investigations were conducted at the sections of the stations in low water (Feb. to March) and high water (July) periods of 1989. From April to July, species and quantity of fishes were sampled twice a month and study on index species was conducted. In addition, total concentrations of Hg, Cu, Zn, Cd, Pb, 666(BHC) and DDT in four benthos, i.e. Cladophora sp., Spirogyra sp., Corbicula jluminea and Sesarma deheni were determined. Results of synthetic assessment showed that the two intakes under study could be classified as β-mesosaprobic Zone, within the area of clean zone. However, the environmetal quality of the two wate intakes indicated the complexity of the estuary environ-ment.
出处
《环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1992年第2期84-88,共5页
Environmental Science
关键词
长江取水口
环境生物
水质评价
Changjiang water intake, environmental organism, assessment of water quality.
