%0 Journal Article
%T Variation Characteristics and Controlling Factors of Heavy Metals in the South Yellow Sea Surface Seawaters<br>南黄海表层海水重金属的变化特征及影响因素
%A HE Zhi-peng
%A SONG Jin-ming
%A ZHANG Nai-xing
%A XU Ya-yan
%A ZHENG Guo-xia
%A ZHANG Peng
%A <br>贺志鹏
%A 宋金明
%A 张乃星
%A 徐亚岩
%A 郑国侠
%A 张蓬
%J 环境科学
%D 2008
%I 
%X Based on the 8 cruises data of surface seawater heavy metals and other related environmental factors from 1997 to 2004 of the South Yellow Sea (SYS), distribution patterns, mechanisms controlling the distributions and pollution levels of heavy metals (As, Cd, Cu, Hg, Pb, Zn) were studied with the data of 2003-10, and 8-year-fluctuation trends of heavy metals were also discussed. The average concentrations of heavy metals in surface seawater were 2.33, 0.078, 1.41, 0.003 6, 0.37, 6.21 microg/L respectively. The average concentrations showed a relatively stable trend in 8 years, except Zn's distinct upward tendency. The distribution patterns corresponded to the distance away from the coastline,that was, the content of heavy metals (except Pb) was low in central area while high inshore. Those were responses of human activity in the marginal sea, however, in some local areas, Pb was controlled by atmospheric deposition, Cd was relative to pH and salinity, Hg was related to organic carbon, Cu and Zn were influenced by runoff and drainage, and the resuspending of sediments played important roles on the content and distribution of As. Compared to the Marine Water Quality Standard of China, heavy metals indicated that SYS was a first class sea, and Ecological Risk Index analysis showed that SYS was a low ecological risk sea. In conclusion, seawater quality of heavy metals in SYS surface seawater is relatively good in general.
%K heavy metals
%K distribution characteristics
%K annual variation
%K controlling factors
%K South Yellow Sea
%K surface seawater<br>重金属
%K 分布特征
%K 年际变化
%K 影响因素
%K 南黄海
%K 表层海水
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=AFA416EB1E769B594963B5EBDAFE04EF&yid=67289AFF6305E306&vid=771469D9D58C34FF&iid=94C357A881DFC066&sid=09D7E2FA8227CA7B&eid=38C4598EB9061892&journal_id=0250-3301&journal_name=环境科学&referenced_num=7&reference_num=32