气候变化领域集成服务门户(CCPortal): Observation-Based Mercury Export from Rivers to Coastal Oceans in East Asia

CCPortal

DOI	10.1021/acs.est.1c03755
	Observation-Based Mercury Export from Rivers to Coastal Oceans in East Asia
	Liu, Maodian; Zhang, Qianru; Yu, Chenghao; Yuan, Liuliang; He, Yipeng; Xiao, Wenjie; Zhang, Haoran; Guo, Junming; Zhang, Wei; Li, Yanbin; Zhang, Qianggong; Chen, Long; Wang, Xuejun
通讯作者	Wang, XJ (通讯作者)，Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China. ; Chen, L (通讯作者)，East China Normal Univ, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China.
发表日期	2021
ISSN	0013-936X
EISSN	1520-5851
起始页码	14269
结束页码	14280
卷号	55 期号:20
英文摘要	Globally, the consumption of coastal fish is the predominant source of human exposure to methylmercury, a potent neurotoxicant that poses health risks to humans. However, the relative importance of riverine inputs and atmospheric deposition of mercury into coastal oceans remains uncertain owing to a lack of riverine mercury observations. Here, we present comprehensive seasonal observations of riverine mercury and methylmercury loads, including dissolved and particulate phases, to East Asia's coastal oceans, which supply nearly half of the world's seafood products. We found that East Asia's rivers annually exported 95 +/- 29 megagrams of mercury to adjacent seas, 3-fold greater than the corresponding atmospheric deposition. Three rivers alone accounted for 71% of East Asia's riverine mercury exports, namely: Yangtze, Yellow, and Pearl rivers. We further conducted a metadata analysis to discuss the mercury burden on seawater and found that riverine export, combined with atmospheric deposition and terrestrial nutrients, quantitatively elevated the levels of total, methylated, and dissolved gaseous mercury in seawater by an order of magnitude. Our observations support that massive amounts of riverine mercury are exported to coastal oceans on a continental scale, intensifying their spread from coastal seawater to the atmosphere, marine sediments, and open oceans. We suggest that the impact of mercury transport along the land-ocean aquatic continuum should be considered in human exposure risk assessments.
关键词	ANTHROPOGENIC MERCURY FLUVIAL SEDIMENT CHINA METHYLMERCURY PACIFIC INVENTORY RATES METHYLATION ENVIRONMENT DISCHARGES
英文关键词	mercury and methylmercury; riverine export; freshwater; suspended particles; atmospheric deposition; coastal seawater
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000710453500085
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/255203
作者单位	[Liu, Maodian; Zhang, Qianru; Yu, Chenghao; Yuan, Liuliang; Zhang, Haoran; Wang, Xuejun] Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China; [Liu, Maodian] Yale Univ, Sch Environm, New Haven, CT 06511 USA; [Zhang, Qianru] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA; [Yuan, Liuliang] Hong Kong Univ Sci & Technol, Dept Life Sci, Kowloon, Hong Kong 999077, Peoples R China; [Yuan, Liuliang] Hong Kong Univ Sci & Technol, Hong Kong Branch Southern Marine Sci & Engn, Guangdong Lab Guangzhou, Kowloon, Hong Kong 999077, Peoples R China; [He, Yipeng] Univ Connecticut, Dept Marine Sci, Groton, CT 06340 USA; [Xiao, Wenjie] Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China; [Xiao, Wenjie] Southern Univ Sci & Technol, Shenzhen Key Lab Marine Archaea Geo, Shenzhen 518055, Peoples R China; [Xiao, Wenjie] Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 523936, Peoples R China; [Guo, Junming]...
推荐引用方式 GB/T 7714	Liu, Maodian,Zhang, Qianru,Yu, Chenghao,et al. Observation-Based Mercury Export from Rivers to Coastal Oceans in East Asia[J]. 中国科学院西北生态环境资源研究院,2021,55(20).
APA	Liu, Maodian.,Zhang, Qianru.,Yu, Chenghao.,Yuan, Liuliang.,He, Yipeng.,...&Wang, Xuejun.(2021).Observation-Based Mercury Export from Rivers to Coastal Oceans in East Asia.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(20).
MLA	Liu, Maodian,et al."Observation-Based Mercury Export from Rivers to Coastal Oceans in East Asia".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.20(2021).