天津沿海渔港沉积物重金属含量分布与区域性差异  

Distribution and regional differences of heavy metal content in sediments of Tianjin coastal fishing port

作　　者：张玲 孙万胜 于洁 王刚[2] 王宝峰 ZHANG Ling;SUN Wansheng;YU Jie;WANG Gang;WANG Baofeng(Tianjin Agricultural Ecological Environment Monitoring and Agricultural Product Quality Testing Center,Tianjin 300193,China;Tianjin Fisheries Research Institute,Tianjin 300042,China)

机构地区：[1]天津市农业生态环境监测与农产品质量检测中心,天津300193 [2]天津市水产研究所,天津300042

出　　处：《河北渔业》2023年第5期18-21,46,共5页

基　　金：天津市农业生态环境监测项目。

摘　　要：为了解天津沿海沉积物底质重金属含量分布、污染程度及区域性差异,分别于2020年6月、9月和2021年6月、9月,对天津沿海5大渔港附近20个站位采集沉积物进行重金属分析监测。监测结果显示:沉积物重金属铜、锌、铅、镉、汞、砷、铬全部符合《海洋沉积物质量》第三类标准要求,判定全部合格;从季节上来看,沉积物各指标未呈现明显规律,只有锌、铅、镉的含量呈现6月伏季休渔期数值高于9月捕捞期的规律。建议严格控制陆源污染排放,规范渔港环境管理与监测,渔港底质环境状况还有提升空间。In order to understand the distribution,pollution level,and regional differences of heavy metal content in sediment and sediment along the Tianjin coast,conducted respectively in June and September 2020,2021,heavy metal analysis and monitoring were conducted on sediments collected from 20 stations near the five major fishing ports along the coast of Tianjin.The monitoring results show that the heavy metals copper,zinc,lead,cadmium,mercury,arsenic,and chromium in the sediment all meet the requirements of the third category standard of the Marine Sediment Quality,and are judged to be qualified;From a seasonal perspective,the various indicators of sediment do not show obvious patterns,only the content of zinc,lead,and cadmium shows a pattern of higher values during the summer fishing season in June compared to the fishing season in September.It is recommended to strictly control the discharge of land-based pollution,standardize the environmental management and monitoring of fishing ports,and there is still room for improvement in the bottom quality environment of fishing ports.

关 键 词：天津 渔港 沉积物 重金属 

分 类 号：X55[环境科学与工程—环境工程]