Mercury Inputs to Chinese Marginal Seas: Impact of Industrialization and Development of China

doi:10.1029/2017JC013691

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋地质与地球物理研究室

	Mercury Inputs to Chinese Marginal Seas: Impact of Industrialization and Development of China
	Yin, Runsheng 1,2; Guo, Zhigang 3; Hu, Limin 4; Liu, Wenchuan 3; Hurley, James P.5,6; Lepak, Ryan F.5; Lin, Tian 7; Fang, Xinbin 7; Li, Xiangdong 2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2018-08
卷号	123 期号:8 页码:5599-5611
关键词	mercury isotope deposition history input sources marginal seas China
ISSN号	2169-9275
DOI	10.1029/2017JC013691
英文摘要	In the past decades, China has experienced substantial economic growth and industrialization. However, the effects of vast development of China on Hg input to the nearby oceans are still unclear. In this study, the influx and isotopic compositions of Hg in four Pb-210-dated sediment cores were examined to investigate changes in Hg deposition to the marginal seas off China over a century. Nearshore cores had higher Hg influxes than offshore cores. Increases of Hg influxes started since the 1950s, which coincides with China's economic development. Dramatic historical changes in Hg isotopic composition were observed in the cores (Hg-202: -2.01 to -0.69; Hg-199: -0.16 to 0.31; n=106). Hg-202 increased from the deep to the surface layers of the cores. The offshore cores mainly showed positive Hg-199 values, but the pre-1950 samples had more positive Hg-199 values than the younger samples. The nearshore cores mainly showed negative Hg-199 values in the pre-1950s samples, but the younger samples showed Hg-199 values close to zero. A triple-mixing isotope model, used to quantify the contribution of potential Hg inputs (e.g., direct discharge of industrial Hg, soil Hg, and precipitation-derived Hg), showed clear evidence of enhanced industrial Hg inputs to the ocean margin, but slightly decreased watershed soil Hg inputs in the last few decades. The variations of watershed-derived Hg were likely caused by the construction of impoundments in major rivers of China. This study demonstrates that mercury inputs to Chinese marginal seas have been largely altered due to the industrialization and economic development of China.
资助项目	Natural Science Foundation of China[41676034] ; Natural Science Foundation of China[41602047]
WOS研究方向	Oceanography
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000445188900032
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/2846]
专题	业务部门_海洋地质与地球物理研究室
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang, Guizhou, Peoples R China; 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China; 3.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut Preven, Shanghai, Peoples R China; 4.State Ocean Adm, Key Lab Marine Sedimentol & Environm Geol, Inst Oceanog 1, Qingdao, Peoples R China; 5.Univ Wisconsin, Environm Chem & Technol Program, Madison, WI USA; 6.Univ Wisconsin, Dept Civil & Environm Engn, Madison, WI 53706 USA; 7.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang, Guizhou, Peoples R China
推荐引用方式 GB/T 7714	Yin, Runsheng,Guo, Zhigang,Hu, Limin,et al. Mercury Inputs to Chinese Marginal Seas: Impact of Industrialization and Development of China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(8):5599-5611.
APA	Yin, Runsheng.,Guo, Zhigang.,Hu, Limin.,Liu, Wenchuan.,Hurley, James P..,...&Li, Xiangdong.(2018).Mercury Inputs to Chinese Marginal Seas: Impact of Industrialization and Development of China.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(8),5599-5611.
MLA	Yin, Runsheng,et al."Mercury Inputs to Chinese Marginal Seas: Impact of Industrialization and Development of China".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.8(2018):5599-5611.