黄家埠排污口邻近海域水环境分析

Analysis of water environments around discharge outlet in Huangjiabu

根据2007年3、5、8、10月四个航次对余姚市黄家埠2个排污口的污水调查和8月对排污口及邻近海域的水质监测,发现:1号排污口水质中pH、COD在4个航次都超标,氰化物和Cu在3个航次均未做到达标排放;排污口邻近海域主要污染因子是氰化物、Cu,氰化物浓度很高已达到鱼类中毒浓度(0.03 mg/L),排污口邻近海域水质污染较为严峻。

Based on the investigation data of two land-based outlets from the four cruises in Mar. May, Aug. and Oct. of 2007 in Huangjiabu of the Yuyao City, and combination with the water quality monitoring data of the land-based outlets and adjacent waters in Aug. the results showed that both pH and COD in 1# outlet were beyond the standard, and cyanides and coppers were also beyond the emissions standards in three cruises. The main pollution factors in the adjacent waters were cyanides and coppers, and the concentration of cyanides were already very high, amount to the concentration of poisoning fish （0.03 mg/L）. The adjacent waters of the outlets were in serious polluted conditions.