摘要
摘要通过对奉贤碧海金沙和金山城市沙滩2个封闭型围隔海区为期1a的监测。采用富营养化指数(f值)和有机污染物指数(月值)对其水质进行分析和评价。结果表明:奉贤碧海金沙水体水质基本处于Ⅲ-IV类,金山城市沙滩水体水质基本处于Ⅱ-Ⅲ类;奉贤碧海金沙水质物理性指标(水温,溶解氧)变化与金山城市沙滩无显著性差异(尸〉005),水质化学性指标(活性硅酸盐,CODMn,DIN,DIP)高于金山城市沙滩(P〈0.05);奉贤碧海金沙海域有B个月富营养化指数(E值)高于金山城市沙滩,富营养化程度较高;通过对2海区有机污染指数(A值)与CODMn的比较发现,奉贤碧海金沙水体有机物污染程度高于金山城市沙滩。
The water quality of two enclosed sea areas at Fengxian Bihaijinsha and Jinshan City Beach in Shanghai has been analysed and evaluated with eutrophication indices (E) and organic pollutant indices (A) through one-year round monitoring. The results showed that, on the whole, the water quality at Fengxian Bihaijinsha was at Class IIl or IV of marine water standard, and that at Jinshan City Beach was at Class 1! or Ill. No significant difference was observed in changes of physical variables (water temperature, dissolved oxygen) between those two sea areas (P 〉 0.05), and chemical variables (activated silicate, permanganate value, dissolved inorganic nitrogen, dissolved inorganic phosphorus) were, however, higher at Fengxian Bihaijinsha than that at Jinshan City Beach (P 〈 0.05). There were eight months when eutrophication indices E were greater at Fengxian Bihaijinsha than at Jinshan City Beach. In addition, through a comparison of organic pollutant indices A and permanganate values between those two sea areas, the level of organic pollution at Fengxian Bihaijinsha was found higher.
出处
《上海环境科学》
CAS
CSCD
2012年第5期190-194,230,共6页
Shanghai Environmental Sciences
基金
上海市浦江人才计划项目(编号:05J14086)
上海市优秀学科带头人项目(编号:085D14037)资助
关键词
围隔海区
水质
富营养化
Enclosed sea area Water quality Eutrophication