SOURCE APPORTIONMENT AND ECOLOGICAL RISK ASSESSMENT OF HEAVY METALS IN PM<sub>2.5</sub> IN THE FENGFENG MINING AREA IN 2017—2019

ZHANG Yibing; LIANG Yiqun; ZHANG Yuan; FANG Yinxiang; NIU Hongya; FAN Jingsen

doi:10.13205/j.hjgc.202308031

Volume 41 Issue 8

Aug. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(8): 242-250

ZHANG Yibing, LIANG Yiqun, ZHANG Yuan, FANG Yinxiang, NIU Hongya, FAN Jingsen. SOURCE APPORTIONMENT AND ECOLOGICAL RISK ASSESSMENT OF HEAVY METALS IN PM2.5 IN THE FENGFENG MINING AREA IN 2017—2019[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(8): 242-250. doi: 10.13205/j.hjgc.202308031

Citation:

ZHANG Yibing, LIANG Yiqun, ZHANG Yuan, FANG Yinxiang, NIU Hongya, FAN Jingsen. SOURCE APPORTIONMENT AND ECOLOGICAL RISK ASSESSMENT OF HEAVY METALS IN PM_2.5 IN THE FENGFENG MINING AREA IN 2017—2019[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(8): 242-250. doi: 10.13205/j.hjgc.202308031

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SOURCE APPORTIONMENT AND ECOLOGICAL RISK ASSESSMENT OF HEAVY METALS IN PM_2.5 IN THE FENGFENG MINING AREA IN 2017—2019

doi: 10.13205/j.hjgc.202308031

1. School of Earth Science and Engineering, Hebei Engineering University, Handan 056038, China;
2. Hebei Coal Resources Development and Utilization Collaborative Innovation Center, Hebei Engineering University, Handan 056038, China

Received Date: 2022-12-06
Available Online: 2023-11-15

Abstract

Abstract

In order to understand the pollution sources and ecological risks of heavy metals in PM_2.5 in the Fengfeng mining area, PM_2.5 samples were collected from 2017 to 2019, and the concentrations of heavy metals (Zn, Pb, Mn, Cr, Cu, As, Sb, Ni, Cd and Co) in the PM_2.5 samples were determined by inductively coupled plasma mass spectrometer (ICP-MS). The sources and ecological risks of heavy metals were investigated by enrichment factor, principal component analysis, geoaccumulation index and potential ecological risk index. The results showed that the average daily concentration of PM_2.5 in the Fengfeng mining area during the sampling period was about 1.66 times the limit value in the Environmental Air Quality Standard (GB 3095—2012), showing a seasonal rule that winter and spring were higher than summer and autumn. The variation rule of element concentration was basically consistent with that of PM_2.5 concentration and the total element concentration decreased year by year. The total average concentration of heavy metals in PM_2.5 was in an order of Zn>Pb>Mn>Cr>Cu>As>Sb>Ni>Cd>Co. The sum of Zn, Pb, Mn, Cr and Cu elements accounted for 92.7% of the total element concentration, and As and Cr exceeded the standard seriously. The results of enrichment factors showed that Cr, Cu and As were heavily enriched, and Zn, Pb, Sb and Cd were extremely heavily enriched, mainly coming from human activities. Principal component analysis showed that the sources of metals were coal sources, traffic sources, industrial sources, natural sources, and agricultural sources. The geoaccumulation index showed that Cr, Cu and As were heavy pollution, greatly affected by man-made pollution. While Zn, Pb, Sb and Cd reached serious pollution, they were mainly affected by human activities. The comprehensive potential ecological risk level of heavy metals in the Fengfeng mining area was extremely strong. Among the single factor pollutants, the potential risk levels of Sb and Cd were extremely strong. With the introduction of a series of air and environmental governance policies, the pollution level and potential ecological risk index of PM_2.5 and most elements decreased in 2019, compared with the other two years.
- the Fengfeng mining area,
- PM_2.5,
- heavy metal,
- source apportionment,
- ecological risk

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References(42)

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