Metals source analysis and ecological risk evaluation of atmospheric PM<sub>2.5</sub> in a city of North China

CHANG Hui-yun; TANG Da-jing; ZHAO Chuan; SUN Cheng-yao; CHEN Feng-ge; GUAN Ming-yang; ZHANG Ying

doi:10.16462/j.cnki.zhjbkz.2021.11.003

Volume 25 Issue 11

Nov. 2021

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Article Navigation > CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION > 2021 > 25(11): 1251-1256,1263

CHANG Hui-yun, TANG Da-jing, ZHAO Chuan, SUN Cheng-yao, CHEN Feng-ge, GUAN Ming-yang, ZHANG Ying. Metals source analysis and ecological risk evaluation of atmospheric PM2.5 in a city of North China[J]. CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION, 2021, 25(11): 1251-1256,1263. doi: 10.16462/j.cnki.zhjbkz.2021.11.003

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CHANG Hui-yun, TANG Da-jing, ZHAO Chuan, SUN Cheng-yao, CHEN Feng-ge, GUAN Ming-yang, ZHANG Ying. Metals source analysis and ecological risk evaluation of atmospheric PM_2.5 in a city of North China[J]. CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION, 2021, 25(11): 1251-1256,1263. doi: 10.16462/j.cnki.zhjbkz.2021.11.003

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Metals source analysis and ecological risk evaluation of atmospheric PM_2.5 in a city of North China

doi: 10.16462/j.cnki.zhjbkz.2021.11.003

CHANG Hui-yun^{1, 2},
TANG Da-jing^{1, 2},
ZHAO Chuan^{1, 2},
SUN Cheng-yao^{1, 2},
CHEN Feng-ge¹,
GUAN Ming-yang¹,
ZHANG Ying^{1
,
,}

1.
Institute of Environmental Health, Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050011, China
2.
Department of Preventive Medicine, School of Public Health, North China University of Science and Technology, Tangshan 063210, China

Funds:

Natural Science Foundation of Hebei Province B2020106002

Shijiazhuang Science and Technology Plan 171462073

More Information

Corresponding author: ZHANG Ying, E-mail: zhangying_cdc@yahoo.com
Received Date: 2020-08-17
Rev Recd Date: 2020-12-04

Available Online: 2021-12-04

Publish Date: 2021-11-10

Abstract

Abstract

Objective To investigate the seasonal differences and sources of metal in PM_2.5 in the main urban area of a city in North China, and to evaluate the degree of pollution and ecological harm. Methods Atmospheric PM_2.5 samples were collected from March 2017 to February 2018. The content of metal elements were detected by inductively coupled plasma mass spectrometry (ICP-MS). The source of metals was analyzed by the enrichment factor and principal component analysis (PCA). Pollution degree was evaluated by the geo-accumulation index and the potential ecological risk index. Results The seasonal differences of concentration of metal elements in PM_2.5 showed that it was higher in winter than that in another seasons. The results of enrichment factor analysis showed that Sb, Se and Cd were highly enriched in four seasons, so they were mainly affected by human activities, and Cr, Ni, Be were non-enrichment which mainly from nature. The results of PCA showed that metals in PM_2.5 were mainly from traffic and industrial composite pollution sources, combustion activity sources, and burning and natural composite pollution sources. The results of pollution degree showed that Cr, Ni and Be could be considered as pollution-free in four seasons, and As, Sb, Se, Cd, Tl, Hg and Pb were in a moderate or higher pollution levels but there was no uniform seasonal variation. The results of potential ecological risk assessment showed that As, Cr, Ni, Tl, Hg, Pb were in slight level, and Cd was stronger than others, but the comprehensive potential ecological risk of elements was extremely strong. Conclusions The pollution of metal in PM_2.5 mainly from traffic, industrial production and burning, etc. The pollution degree was highest in winter and had potential ecological harm. Therefore, we should pay more attention to the control and protection of PM_2.5 in winter.
- Metals,
- Enrichment factor,
- Principal component analysis,
- Geo-accumulation index,
- Potential ecological risk index

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References(19)

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