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Geochemical processes controlling dissolved selenium in the Changjiang（Yangtze） Estuary and its adjacent waters

ISSN号：0253-505X
期刊名称：《海洋学报：英文版》
时间：0
分类：P734.21[天文地球—海洋化学;天文地球—海洋科学] O614.611[理学—无机化学;理学—化学]
作者机构：[1]Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy ofSciences, Qingdao 266071, China, [2]Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, StateOceanic Administration, Qingdao 266061, China
相关基金：Foundation item： The Strategic Priority Research Program of the Chinese Academy of Sciences under contract No. XDA11020102; the National Natural Science Foundation of China under contract Nos 41306055 and U1406403.

作者： WU Xiaodan[1], SONG Jinming[1], WU Bin[1,2], LI Tiegang[1], LI Xuegang[1]

关键词：化学形态分析, 无机砷, 溶解态, 东海, 黄海, 沉积物类型, 悬浮颗粒物, 地表水, dissolved inorganic arsenic, distribution, speciation, Yellow Sea, East China Sea

中文摘要：

分发和溶解的无机的砷的化学种形成在黄海和华东海被检验。结果表明了那：(1 ) 是的两个(III ) 并且当(V) 被检测，与当在 40% 点统治的(V) 表面水和底部的 51% 车站驻扎，流水；( 2 )由交换影响了新鲜并且海水，表面沉积的类型和各种各样的水的运输集中，表面水里的大价值沿着沿海的区域并且在 Changjiang 河河口和 Hangzhou 海湾的一样的纬度被观察，并且在底部，水在台湾温暖的水流和自台湾东面的菲律宾海流向日本的暖流电流影响了的南部的区域发现了；(3 ) 作为(III ) 在 Changjiang 河河口非保存地表现了。导出人的输入从理论冲淡引起实质的积极偏差。否定关联当到表面水里的咸度的(V) 建议了那，它沿着 Changjiang 河河口在交通期间保存地表现了。当时，出现作为(V) 直到线性装入底部水从溶解阶段显示了最终的转移到微粒阶段，它是不可能的没有砷水平和种形成的知识，在推迟的微粒物质坚定。进一步的学习基于分发侧面在砷来源 / 水池关系上被需要。

英文摘要：

Distribution and chemical speciation of dissolved inorganic arsenic were examined in Yellow Sea and East China Sea. Results demonstrated that：（1） both As（Ⅲ） and As（Ⅴ） were detected, with As（V） dominated at 40% stations of surface water and 51% stations of bottom water; （2） influenced by the exchange of fresh and sea water, the type of surface sediment and the transport of various water masses, large values in surface water were observed along the coastal region and in the same latitude of Changjiang River Estuary and Hangzhou Bay, and in bottom water found in the southern area where the Taiwan Warm Current and Kuroshio Current influenced; （3） As（Ⅲ） behaved non-conservatively in Changjiang River Estuary. Man-derived inputs cause substantial positive deviation from the theoretical dilution. The negative correlation of As（Ⅴ） to salinity in surface water suggested that it behaved conservatively during the transportation along Changjiang River Estuary. While, the occurrence of As（Ⅴ） up to the linear fit in bottom water indicated the eventual transfer from dissolved phase to particulate phase, which was impossible to be determined without the knowledge of arsenic level and speciation in suspended particulate matter. Further study is needed on the arsenic source/sink relationships based on the distribution profiles.