Home | Contact Us | Sitemap | 中文 | CAS | Director's Email
 
Location:Home > Papers > Recent Papers
Levels, sources, isotope signatures, and health risks of mercury in street dust across China TEXT SIZE: A A A

Spatial distribution and isotope signature of mercury (Hg) in street dusts across China were investigated by collecting dust samples from 14 cities and reviewing previously published data from an additional 46 cities. Potential sources of street dust and the associated health risks to humans were also assessed. The total Hg (THg) concentrations in street dust ranged from 0.020-39.1 mg kg(-1) with an average of 0.433 +/- 0.185 mg kg(-1) in the 60 cities. Street dust samples collected from 14 cities were characterized by slightly negative delta Hg-202 (- 0.61 +/- 0.92%0) and near-zero Delta Hg-199 (- 0.03 +/- 0.08%0) values, and coal combustion and industrial activities were estimated to be the major sources of Hg in street dust. The estimated average probable daily intake (PDI) of THg from street dust exposure for adults and children (1.36E-03 and 1.27E-02 mu g d(-1) kg( -1), respectively) were comparable to their respective exposures via rice consumption in China. Children being exposed to THg in dust is a major concern in mercury mining areas (e.g., Wangshan and Xunyang), and may also be a concern in cities with major coal-based industries and nonferrous metal smelting. Results from this study suggest that exposure to street dust is not a primary MeHg exposure pathway in China.

Publication name

 JOURNAL OF HAZARDOUS MATERIALS Volume: 392 Article Number: 122276 DOI: 10.1016/j.jhazmat.2020.122276 Published:? JUN 15 2020

Author(s)

 Sun, Guangyi; Feng, Xinbin; Yang, Chenmeng; Zhang, Leiming; Yin, Runsheng; Li, Zhonggen; Bi, Xiangyang; Wu, Yunjie

Corresponding author(s) 

 FENG Xinbin 
 fengxinbin@vip.skleg.cn
 Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China.
 LI Zhonggen
 lizhonggencn@126.com
 Zunyi Normal Univ, Coll Resources & Environm, Zunyi 563006, Guizhou, Peoples R China.

View here for the details

Copyright © 2020 Institute Of Geochemistry, Chinese Academy of Sciences All Rights Reserved.
Address: 99 West Lincheng Road, Guanshanhu District, Guiyang, Guizhou Province 550081, P.R.China
Tel: +86-851-85895239 Fax: +86-851-85895239 Email: web_en@mail.gyig.ac.cn