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›› 2014, Vol. 36 ›› Issue (4): 278-284.

• 论文与报告 • 上一篇    下一篇

春、夏季东山湾海水中Hg、As的时空分布状况及其影响因素

席英玉1,林永青2,杨妙峰1,郑盛华1,许贻斌1,陈宇峰2   

  1. 1. 福建省水产研究所
    2.
  • 收稿日期:2014-06-03 修回日期:2014-07-13 出版日期:2014-08-25 发布日期:2014-08-20
  • 通讯作者: 席英玉
  • 基金资助:
    国家海洋局海洋公益性行业科研专项

Distribution and influencing factors of Hg and As in spring and summer in the seawater of Dongshan Bay

  • Received:2014-06-03 Revised:2014-07-13 Online:2014-08-25 Published:2014-08-20
  • Contact: xi yingyu

摘要: 根据2011年东山湾海洋生态环境的调查资料,对东山湾海水中Hg、As含量的时空分布特征及影响因子进行了初步探讨。结果表明:春季(5月份)东山湾海水中Hg含量表、底层分布较均匀,As含量底层稍高于表层;夏季(8月份)表、底层海水中Hg、As含量无明显差异。海水中Hg和As含量夏季高于春季。总体上,春季(5月份)海水中Hg和As含量邻近八尺门网箱养殖区海域的站位较高,由湾中部向湾顶和湾外呈逐渐降低之势;夏季(8月份)海水中Hg和As的含量分布较均匀。海水中的Hg、As含量分布均与温度成一定的正相关关系,与pH和溶解氧呈一定的负相关关系。海水中Hg、As含量均符合GB3097-1997《海水水质标准》中的第二类标准,表明东山湾海水受Hg、As的污染较小,海水质量良好。

关键词: 东山湾, Hg, As, 时空分布, 影响因素。, Dongshan Bay, Hg, As, temporal-spatial distribution, influencing factors.

Abstract: According to the survey data of marine ecological environment of Dongshan Bay in 2011, the author analyzed the temporal-spatial distribution characteristics and influencing factors of Hg and As.The results showed that in May, the concentration of Hg was same on the surface and bottom of water, as was higher at the bottom than on the surface. In August, the contents of Hg and As on the surface were almost the same as at the bottom.The contents of Hg and As in summer were higher than in spring.In May, the contents of Hg and As were high near the Bachimen Dock and the culture areas, which decreased gradually from the central of Bay to the bay head and outer. In August, the concentrations of Hg and As were well distributed because of the water exchanging. The concentrations of Hg and As had positively correlation with temperature, but negatively correlation with pH and DO. The contents of Hg and As of seawater met the second degree of Sea Water Quality Standard,which showed that seawater of Dongshan bay was lightly contaminated by Hg and As and had good seawater quality.