Sedimentary lead isotopic signatures in relation to anthropogenic emissions in Asia: A comparative study in the Yellow Sea and Gulf of Thailand

doi:10.1016/j.chemgeo.2022.121046

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	Sedimentary lead isotopic signatures in relation to anthropogenic emissions in Asia: A comparative study in the Yellow Sea and Gulf of Thailand
	Wu, Bin 1,2; Wu, Xiaodan 3,4; Qiao, Shuqing 1,2; Shi, Xuefa 1,2; Hu, Limin 2,5; Song, Jinming3,4 ; Li, Xuegang 3,4; Liu, Shengfa 1,2; Liu, Jihua 1,2; Bai, Yazhi 1,2; Zhang, Jun 1,2; Zhu, Aimei 1,2; Kornkanitnan, Narumol 6; Khokiattiwong, Somkiat 6
	2022-10-05
发表期刊	CHEMICAL GEOLOGY
ISSN	0009-2541
卷号	608 页码:13
通讯作者	Wu, Bin(wubin@fio.org.cn) ; Shi, Xuefa(xfshi@fio.org.cn)
摘要	Anthropogenic emissions from coal-petroleum-based energy consumption have greatly altered the concentration and isotopic composition of lead (Pb) in the global oceans since the mid-20th century. China and SE Asian countries are among two of the most rapidly expanding and emerging economies with contrasting magnitudes of anthropogenic Pb emissions in recent decades, leading to totally different patterns of Pb distributions in the Western Pacific and neighboring seas compared with North America and Europe. To capture large-scale features of the sources and pathways of Pb, a systematic investigation of the sedimentary Pb and Pb isotopes in the Yellow Sea (YS) and Gulf of Thailand (GOT) was performed. Pb contamination was observed in the two regions with quite distinct sources and input pathways. We found that sediment Pb in the YS was heavily impacted by coal-petroleum combustion sources, which explained similar to 58% of the total Pb. The influences of increasing Pb emissions from coal consumption in the 2000s were more significant because Pb isotopic ratios in the YS show more affinity to those in the coal. Comparatively, Pb isotopic evidence, however, showed that lithogenic sources from mining activities, combined with anthropogenic origins such as coal combustion, contribute to Pb contamination in the GOT, with a minor role from fossil fuel consumption. Furthermore, coastal input from gold mining, dumping and atmospheric deposition were the possible pathways for elevated Pb in the YS seafloor, while river transport was the prevailing route in the GOT. In short, the stark patterns of anthropogenic disturbance in China and SE Asia demonstrate distinct impacts on Pb contamination in the YS and GOT. Although there are signs of contamination mitigation from reduced emissions, Pb contamination across Asia should be closely observed in the long term as human activities and natural processes continue to release Pb into the marine environment.
关键词	Pb isotopes Anthropogenic disturbance Energy consumption Yellow Sea SE Asia
DOI	10.1016/j.chemgeo.2022.121046
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of China[41506066] ; Natural Science Foundation of China[U1606401] ; National Programme on Global Change and Air-Sea Interaction[GASI-GEOGE-03] ; China-Thailand Cooperation Project Research on Vulnerability of Coastal Zones ; Taishan Scholar Program of Shandong
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000841911700001
出版者	ELSEVIER
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179947
专题	中国科学院海洋研究所
通讯作者	Wu, Bin; Shi, Xuefa
作者单位	1.Minist Nat Resources, Key Lab Marine Geol & Metallogeny, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Qingdao Natl Oceanog Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 5.Ocean Univ China, Key Lab Submarine Geosci & Technol, Coll Marine Geosci, Qingdao 266100, Peoples R China 6.Marine & Coastal Resources Res & Dev Inst, Dept Marine & Coastal Resources, Bangkok 10210, Thailand
推荐引用方式 GB/T 7714	Wu, Bin,Wu, Xiaodan,Qiao, Shuqing,et al. Sedimentary lead isotopic signatures in relation to anthropogenic emissions in Asia: A comparative study in the Yellow Sea and Gulf of Thailand[J]. CHEMICAL GEOLOGY,2022,608:13.
APA	Wu, Bin.,Wu, Xiaodan.,Qiao, Shuqing.,Shi, Xuefa.,Hu, Limin.,...&Khokiattiwong, Somkiat.(2022).Sedimentary lead isotopic signatures in relation to anthropogenic emissions in Asia: A comparative study in the Yellow Sea and Gulf of Thailand.CHEMICAL GEOLOGY,608,13.
MLA	Wu, Bin,et al."Sedimentary lead isotopic signatures in relation to anthropogenic emissions in Asia: A comparative study in the Yellow Sea and Gulf of Thailand".CHEMICAL GEOLOGY 608(2022):13.

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