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DOI	10.1016/j.atmosenv.2021.118604
	Mercury concentration and isotopic composition on different atmospheric particles (PM10 and PM2.5) in the subtropical coastal suburb of Xiamen Bay, Southern China
	Sun L.; Zhang X.; Zheng J.; Zheng Y.; Yuan D.; Chen W.
发表日期	2021
ISSN	1352-2310
卷号	261
英文摘要	The concentration and isotopic composition of particulate-bound mercury (PBM) on both PM2.5 and PM10 were simultaneously measured (24 months) in a typical subtropical coastal suburb of Xiamen bay (SCXB), southern China. The results showed that most mercury was concentrated in PM2.5 and small particulates enriched heavier isotopes of mercury more than lighter ones. Negative Δ199Hg values and slightly positive Δ200Hg values were observed in both PM2.5 and PM10. PBM input sources were identified with isotopic compositions and meteorological data using the NOAA HYSPLIT model. It revealed that biomass combustion is the main source of particulate mercury in SCXB, and the two other sources are urban anthropogenic emissions and potential marine sources. Seasonal variations in isotopic composition and correlation analysis suggested that PBM in SCXB mainly originate from inland after long-distance transportation in spring and under the influence of oceanic air masses in summer. The Δ199Hg/Δ201Hg ratios in all samples (1.01 ± 0.05, 2SE) indicated that the photoreduction of Hg(II) in the aerosol was the main reaction process of PBM transformation in the atmosphere. Seasonal variations in Δ200Hg values were also found, indicating the possibility of even mass independent fractionation in tracing the mercury sources. © 2021 Elsevier Ltd
关键词	Fine particle Inhalable particle Mercury isotopes Mercury source Photoreduction
语种	英语
scopus关键词	Combustion; Fog; Mercury compounds; Meteorology; Particles (particulate matter); Particulate emissions; Tropics; Concentration (composition); Fine-particles; Inhalable particles; Isotopic composition; Mercury isotope; Mercury source; Particulate bound mercury; Photo reduction; PM$-10$; PM$-2.5$; Isotopes; mercury; aerosol; anthropogenic source; concentration (composition); isotopic composition; long range transport; mercury (element); particulate matter; pollutant source; seasonal variation; spatiotemporal analysis; suburban area; aerosol; Article; atmospheric transport; biomass; chemical analysis; chemical composition; China; combustion; concentration (parameter); controlled study; environmental monitoring; fractionation; meteorology; oxidation reduction reaction; particulate matter 10; particulate matter 2.5; reduction (chemistry); retention time; seashore; seasonal variation; spring; suburban area; summer; China; Fujian; Xiamen Bay
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248321
作者单位	Key Laboratory of Estuarine Ecological Security and Environmental Health, Education Department of Fujian, Tan Kah Kee College, Xiamen University, Zhangzhou, 363105, China; Key Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, Xiamen University, Xiamen, 361105, China
推荐引用方式 GB/T 7714	Sun L.,Zhang X.,Zheng J.,et al. Mercury concentration and isotopic composition on different atmospheric particles (PM10 and PM2.5) in the subtropical coastal suburb of Xiamen Bay, Southern China[J],2021,261.
APA	Sun L.,Zhang X.,Zheng J.,Zheng Y.,Yuan D.,&Chen W..(2021).Mercury concentration and isotopic composition on different atmospheric particles (PM10 and PM2.5) in the subtropical coastal suburb of Xiamen Bay, Southern China.ATMOSPHERIC ENVIRONMENT,261.
MLA	Sun L.,et al."Mercury concentration and isotopic composition on different atmospheric particles (PM10 and PM2.5) in the subtropical coastal suburb of Xiamen Bay, Southern China".ATMOSPHERIC ENVIRONMENT 261(2021).