辽东湾入海污染物调查及海域水质安全分析

对辽东湾入海污染源、污染物总量及近海海域水质调查、监测,并对其水质安全进行了分析、评估。其污染物主要来自沿海各城市排入近海的工业污水、生活污水、入海河流携带污染物,海水养殖过程中产生的废水、残留饵料、排泄物等以及沿海港口码头的作业船舶和海上航行作业的机动船等泄漏、倾废;氮、磷营养盐过度排放导致赤潮频繁发生,危及海洋生物的生存;水质有机污染严重致使海产养殖病害,生物物种减少;重金属、人工合成的难降解的有机物等有害有毒的污染物沉积近岸海底,对近海水质安全形成威胁。

Pollutant Investigation and Water Quality Security Analysis in Liaodong Bay Area

The pollution sources,total pollutants and water quality in Liaodong gulf are investigated and monitored,and the security of water quality is analyzed and assessed.The results show that the pollutants mainly come from the industrial sewage,municipal waste water of coastal cities,the pollutants carried by entering water into the sea,the waster water,residual baits and excretions produced by seawater breeding process,and the leakage from watercrafts.Over discharge of N and P nutrient salt might results in the frequent occurrence of red tide which threatens the life of marine biology.The heavy pollution of organic compound would influence the marine breeding and reduce the species.Sediments of heavy metal,hardly-decomposed artificial organic compound and other deleterious substance will threaten the quality of offing seawater.