天津市北塘入海排污口及邻近海域水环境分析

Monitoring Data of Beitang Seawater Environment Quality in Tianjin

本文根据2014年天津市北塘入海排污口及邻近海域水环境质量的监测资料,采用单因子评价法对该排污口及邻近海域水环境质量进行了综合评价及分析,结果表明:2014年监测期间,北塘入海排污口的主要超标污染物为粪大肠菌群和COD,8月份COD超标,9、10月份粪大肠菌群超标,其他月份未出现超标污染物,排污口级别为D级,标识蓝色。邻近海域监测主要污染物是营养盐,富营养化严重,充分说明了陆源排污是海洋污染的主导因素,造成了海洋水质的恶化,必须重点治理。

According to the monitoring data of Beitang seawater environment quality in Tianjin, the paper makes a comprehensive evaluation and analysis of seawater environment quality in Beitang. The results show that during the monitoring period in 2014, the main pollutants exceeded the standard of Beitang sea outfall for fecal coliform and COD;COD in August exceeded the standard;in September and October, fecal coliform bacteria exceeded the standard;the other months did not exceed the standard of pollutants;sewage outfall grade was in grade D and blue logo. The main pollutants in adjacent waters monitoring nutrients, eutrophication, fully illustrated that terrestrial pollution is the dominant factor of marine pollution, resulting in deterioration of the marine water quality, which must focus on governance.