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Sources and health risks of heavy metals in kindergarten dust: The role of particle size

文献类型：期刊论文

作者Wang, Peng6,7,8; Hu, Jian5,6; Zhang, Qian4; Ma, Wenmin7,8; Tian, Liyan3; Liu, Tingyi2; Li, Jun5,6; Zheng, Houyi1; Han, Guilin7,8
刊名ENVIRONMENTAL RESEARCH
出版日期2024-12-01
卷号262页码:11
关键词Heavy metals Particle-size effect Source apportionment Health risk Kindergarten dust
ISSN号0013-9351
DOI10.1016/j.envres.2024.119955
产权排序5
英文摘要Particle size effects significantly impact the concentration and toxicity of heavy metals (HMs) in dust. Nevertheless, the differences in concentrations, sources, and risks of HMs in dust with different particle sizes are unclear. Therefore, guided by the definition of atmospheric particulate matter, dust samples with particle sizes under 1000 mu m (DT1000), 100 mu m (DT100), and 63 mu m (DT63) from Beijing kindergartens were collected. The concentrations of HMs (e.g., Cd, Pb, Zn, Ni, Cr, Ba, Cu, V, Mn, Co, and Ti) in dust samples with different particle sizes were measured. Besides, the differences in HM concentrations, contamination levels, sources, and sourceoriented health risks in dust samples of different particle sizes were systematically explored. The results show that the concentrations of Mn, V, Zn, and Cd gradually increase with decreasing dust particle sizes, the concentrations of Ba and Pb show a decreasing trend, and the concentrations of Cr, Cu, Ni, and Co display an increasing and then decreasing trend. The degree of contamination of HMs in dust of different particle sizes varies, with Cd being the most dominant contaminant. Compared with DT1000 and DT63, DT100 is the most polluted. In addition, the sources of HMs in DT1000, DT100, and DT63 become more single with decreasing particle size, which may be mainly due to the particle-size effect inducing the redistribution of HMs in different sources. Notably, the potential health risk is higher in DT100 than in DT(1000 )and DT63. The highest contribution of industrial sources to the health risk is found in DT100, which is mainly caused by highly toxic chromium (Cr). This work emphasizes the importance of considering particle size in risk assessment and pollution control, which can provide a theoretical basis for precise management of HMs pollution in dust.
WOS关键词POSITIVE MATRIX FACTORIZATION ; STREET DUST ; ROAD DUST ; SOURCE APPORTIONMENT ; CITY ; ACCUMULATION ; SPECIATION ; SOILS ; MODEL ; PAHS
资助项目National Natural Science Foundation of China[42361144882] ; National Key Research and Development Program of China[2022YFC3704804]
WOS研究方向Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种英语
WOS记录号WOS:001315351900001
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/208283]  
专题管理部门_平台基建处
通讯作者Hu, Jian
作者单位1.China Natl Adm Coal Geol, Beijing 100038, Peoples R China
2.Tianjin Normal Univ, Tianjin Key Lab Water Resources & Environm, Tianjin 300387, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
7.China Univ Geosci Beijing, Inst Earth Sci, Beijing 100083, Peoples R China
8.China Univ Geosci Beijing, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Peng,Hu, Jian,Zhang, Qian,et al. Sources and health risks of heavy metals in kindergarten dust: The role of particle size[J]. ENVIRONMENTAL RESEARCH,2024,262:11.
APA Wang, Peng.,Hu, Jian.,Zhang, Qian.,Ma, Wenmin.,Tian, Liyan.,...&Han, Guilin.(2024).Sources and health risks of heavy metals in kindergarten dust: The role of particle size.ENVIRONMENTAL RESEARCH,262,11.
MLA Wang, Peng,et al."Sources and health risks of heavy metals in kindergarten dust: The role of particle size".ENVIRONMENTAL RESEARCH 262(2024):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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