Elemental composition and risk assessment of heavy metals in the PM10 fractions of road dust and roadside soil

被引：37

作者：

Zhang, Jing ^{[1
,2
,3
]}

Wu, Lin ^{[1
]}

Zhang, Yanjie ^{[1
]}

Li, Fenghua ^{[1
]}

Fang, Xiaozhen ^{[1
]}

Mao, Hongjun ^{[1
]}

机构：

[1] Nankai Univ, Coll Environm Sci & Engn, Ctr Urban Transport Emiss Res CUTER, Tianjin 300071, Peoples R China

[2] Tianjin Ecoenvironm Monitoring Ctr, Tianjin 300191, Peoples R China

[3] Tianjin Tianbinruicheng Environm Technol & Engn C, Tianjin 300190, Peoples R China

来源：

PARTICUOLOGY | 2019年 / 44卷

基金：

中国国家自然科学基金;

关键词：

Road dust; Mass size distribution; PM10; Elemental composition; Health risk assessment; STREET DUST; DEPOSITED SEDIMENTS; PARTICULATE MATTER; FUGITIVE DUST; TOXIC METALS; HEALTH-RISK; CITY; CONTAMINATION; PM2.5; POLLUTION;

D O I：

10.1016/j.partic.2018.09.003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A total of 64 dust samples were analyzed to determine the size distribution and elemental composition of the PM10 fraction, including 42 road dust (RD), 12 roadside soil (RSD), and 10 park road dust (PRD) samples. The mass of dust smaller than 20 mu m was dominated by particles sized 2.5-16 mu m, which accounted for 85%, 88%, and 87% of the RD, PRD, and RSD, respectively. Additionally, crustal elements accounted for 30.14%, 36.35%, and 37.14% of the PM10 fractions of the RD, RSD, and PRD, respectively. The most abundant trace elements in RD, RSD, and PRD were Zn, Mn, and Cu (range, 277 to 874 mg/kg). Moreover, the I-geo, values revealed all dusts were contaminated with Pb, Zn, Cu, Sb, Sn, and Cd. Health risk assessment showed that Mn, Ni, Cu, Zn, Cd, Sb, and Pb in the PK fraction of three types of dusts posed non-cancer risks to children but posed no non-cancer risk to adults. Additionally, As, Ni, and Cd posed no cancer risk to inhabitants. (C) 2019 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：146 / 152

页数：7

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