江苏近海水域2007年与1998年水质状况差异性分析
摘要
基于2007年5月和1998年5月对江苏近海的水环境调查结果,统计分析了海州湾、辐射沙洲和长江北支等不同海域的水质状况,并对海水中部分重要水质指标含量的差异性进行了详细的对比分析.结果表明:汞在各海域的均值浓度可达到国家二类海水水质标准,但是2007年汞的0.1μg/L质量浓度包络线范围明显大于1998年;除了海州湾地区外,其余海域的油类浓度增大;除北部局部海区,2007年的溶解氧浓度基本高于1998年;2007年总磷浓度在近岸区有所降低,但近海海域的总磷污染范围增加较为明显.
Based on the results of the investigation into the water environment in the offshore areas in Jiangsu Province in May,2007 and May,1998,the water qualities in different coastal regions including the Haizhou Bay,the radial sand ridges,and the north branch of the Yangtze River were analyzed,and the differences in the content of the main water quality indices in the sea for these regions were compared in detail.The results show that the average concentrations of mercury in all these coastal regions reach grade II of the national marine water quality standard.The range of the envelope curve for mercury with a concentration of 0.1 μg/L in 2007 was much larger than that in 1998.The oil concentrations in the coastal regions increased in 2007,except for the Haizhou Bay.The DO concentrations in most coastal regions were higher in 2007 than in 1998,except for part of the northern region.The TP concentrations in the inshore areas decreased in 2007,and their pollution ranges in the offshore areas increased significantly.
Based on the results of the investigation into the water environment in the offshore areas in Jiangsu Province in May,2007 and May,1998,the water qualities in different coastal regions including the Haizhou Bay,the radial sand ridges,and the north branch of the Yangtze River were analyzed,and the differences in the content of the main water quality indices in the sea for these regions were compared in detail.The results show that the average concentrations of mercury in all these coastal regions reach grade II of the national marine water quality standard.The range of the envelope curve for mercury with a concentration of 0.1 μg/L in 2007 was much larger than that in 1998.The oil concentrations in the coastal regions increased in 2007,except for the Haizhou Bay.The DO concentrations in most coastal regions were higher in 2007 than in 1998,except for part of the northern region.The TP concentrations in the inshore areas decreased in 2007,and their pollution ranges in the offshore areas increased significantly.
引文
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[3]于大江.近海资源保护与可持续利用[M].北京:海洋出版社,2001:64-66.
[4]任以顺.我国近岸海域环境污染成因与管理对策[J].青岛科技大学学报:社会科学版,2006,22(3):106-111.(REN Yi-shun.The cause of environment pollution and the policy of management about sea alongshore in our country[J].Journal of Qingdao University ofScience and Technology:Social Sciences,2006,22(3):106-111.(in Chinese))
[5]林洪瑛,韩舞鹰.珠江口伶仃洋枯水期十年前后的水质状况与评价[J].海洋环境科学,2001,20(2):28-31.(LIN Hong-ying,HAN Wu-ying.Water quality assessment and analysis before and after the decade of the dry period in Lingdingyang estuary of the PearlRiver Mouth[J].Marine Environmental Science,2001,20(2):28-31.(in Chinese))
[6]曹宇峰.2002—2006年福建省闽江口以南近岸海域水质状况评价[J].海洋环境科学,2009,28(增刊1):39-42.(CAO Yu-feng.Evaluation on seawater quality in south sea area of Minjiang Estuary in Fujian Province from 2002 to 2006[J].MarineEnvironmental Science,2009,28(Sup1):39-42.(in Chinese))
[7]张汉霞,卢伟华,李希国,等.东莞市近岸海域水环境质量评价及变化趋势分析[J].环境保护科学,2011,37(1):62-65.(ZHANG Han-xia,LU Wei-hua.LI Xi-guo,et al.Assessment on water environmental quality in offshore area of Dongguan and analysis onits changing trend[J].Environmental Protection Science,2011,37(1):62-65.(in Chinese))
[8]徐颖.连云港附近海域水环境质量评价[J].海洋环境科学,2001,20(4):54-57.(XU Yin.Assessment on water environmentquality of near Lianyungang Harbor[J].Marine Environmental Science,2001,20(4):54-57.(in Chinese))
[9]陈斌林.连云港近岸海域环境演变及其对策研究[D].上海:华东师范大学,2006.
[10]简慧兰,陶建军,张健夫.南通市近岸海域水环境质量评价[J].海洋渔业,2006,28(4):342-345.(JIAN Hui-lan,TAO Jian-jun,ZHANG Jian-fu.Assessment on water environmental quality in offshore area of Nantong[J].Marine Fisheries.2006,28(4):342-345.(inChinese))
[11]陶建峰,张长宽.黄海辐射沙脊群海域水环境数值模拟研究[J].河海大学学报:自然科学版,2005,33(4):472-475.(TAOJian-feng,ZHANG Chang-kuan.Numerical simulation of water environment for radial sandy ridge area of the Yellow Sea[J].Journal ofHohai University:Natural Sciences,2005,33(4):472-475.(in Chinese))
[12]韩龙喜,易路,刘军英,等.连云港近岸海域污染物输移规律[J].河海大学学报:自然科学版,2011,39(3):248-253.(HANLong-xi,YI Lu,LIU Jun-ying,et al.Transport laws for pollutants in coastal area of Lianyungang City[J].Journal of Hohai University:Natural Sciences,2011,39(3):248-253.(in Chinese))
[13]刘金贵,李瑞杰,曹晶晶,等.苏北近海水动力场及污水稀释扩散的模拟[J].海洋学研究,2009,27(3):8-13.(LIU Jin-gui,LIRui-jie,CAO Jing-jing,et al.Numerical simulation of hydrodynamics and sewage dilution-diffusion along the Northern Jiangsu Coast[J].Journal of Marine Sciences,2009,27(3):8-13.(in Chinese))
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