珠海市近岸海域水质综合评价及防污措施研究

摘要

Consulting GB 3097 -1997 sea water quality standard , this article analysis Zhuhai monthly coastal water quality monitoring data between 2006 and 2007 by modified Gray-clustering method.This article chose eleven indicators:dissolved oxygen、inorganic nitrogen、active phosphate、oil、copper、lead、mercury ect,and get comprehensive evaluation of coastal water quality in Zhuhai.Analysis the estimate results:that Qianshan river estuary was polluted most heavily.It is indispensa-ble that urban outfall carry contamination to seawater.The other monitoring points also polluted by in-organic nitrogen and active phosphate.According to the results of the evaluation of serious pollution to visit the region to investigate , pointing out that improving the sewer network , sewage treatment plants in addition to nitrogen dephosphorization efficiency , and put an end to business services sec-tor, the coastal regulations to reduce emissions from land -based sources of pollution is an important measure.The strengthening of coastal shipping and aquaculture management is essential to reduce coastal pollution.%参照《海水水质标准》（ GB 3097-1997），采用修正灰色聚类法对2006-2007年珠海逐月近岸水质监测数据进行分析，综合评价珠海近岸水质状况。选择溶解氧、无机氮、活性磷酸盐、石油类、铜、铅、汞等12个评价指标进行评价。评价结果表明，前山河出海处污染最为严重，城市排水口对海水水质的污染不容忽视，其他监测点的水质也不同程度地受到无机氮、活性磷酸盐的污染。根据评价结果，对污染严重的地区走访调查，提出污水管网的完善、污水处理厂除氮脱磷效率的提高、杜绝企业及近岸服务业的违章排放是减少陆源污染的重要措施，指出加强近海养殖和航运的管理对减少近岸污染至关重要。