PCBs, PCNs, and PCDD/Fs in Soil around an Industrial Park in Northwest China: Levels, Source Apportionment, and Human Health Risk

The concentrations of polychlorinated biphenyls (PCBs), polychlorinated naphthalenes (PCNs), and polychlorinated dibenzo- -dioxins and dibenzofurans (PCDD/Fs) were determined in soil samples collected around an industrial park in Northwest China, to investigate the potential impacts of park emission...

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Published in:International journal of environmental research and public health 2023-02, Vol.20 (4), p.3478
Main Authors: Li, Tianwei, Hu, Jicheng, Xu, Chenyang, Jin, Jun
Format: Article
Language:English
Subjects:
2,4-D
Apportionment
Benzofurans
Biomass energy
Carcinogens
Cement
China
Congeners
Contamination
Correlation analysis
Dibenzofurans
Dioxin
Dioxins
Emissions
Health
Health aspects
Health risk assessment
Health risks
Heat resistance
Herbicides
Humans
Industrial districts
Industrial parks
Metallurgy
Naphthalenes - analysis
PCB
Persistent organic pollutants
Pigments
Pollutants
Polychlorinated biphenyls
Polychlorinated Biphenyls - analysis
Polychlorinated Dibenzodioxins
Polychlorinated naphthalenes
Power plants
Sediment pollution
Site planning
Soil
Soil contamination
Soil pollution
Soils
Spatial distribution
Stainless steel
Steel production
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Xu, Chenyang
Jin, Jun
description The concentrations of polychlorinated biphenyls (PCBs), polychlorinated naphthalenes (PCNs), and polychlorinated dibenzo- -dioxins and dibenzofurans (PCDD/Fs) were determined in soil samples collected around an industrial park in Northwest China, to investigate the potential impacts of park emissions on the surrounding environment. The total concentration ranges of PCBs, PCNs, and PCDD/Fs in the soil samples were in 13.2-1240, 141-832, and 3.60-156 pg/g, respectively. The spatial distribution and congener patterns of PCBs, PCNs, and PCCD/Fs indicated that there might be multiple contamination sources in the study area, so source apportionments of PCBs, PCNs, and PCCD/Fs were performed by a positive matrix factorization model based on the concentrations of all target congeners together. The results revealed that these highly chlorinated congeners (CB-209, CN-75, and OCDF) might be derived from phthalocyanine pigments, the legacy of Halowax 1051 and 2,4-D products, which together contributed nearly half of the total concentration of target compounds (44.5%). In addition to highly chlorinated congeners, the local industrial thermal processes were mainly responsible for the contamination of PCBs, PCNs, and PCDD/Fs in the surrounding soil. The total carcinogenic risk of PCBs, PCNs, and PCDD/Fs in a few soil samples (0.22 × 10 , 0.32 × 10 , and 0.40 × 10 ) approached the threshold of potential carcinogenic risk (1.0 × 10 ). Since these pollutants can continuously accumulate in the soil, the contamination of PCBs, PCNs, and PCDD/Fs in surrounding soil deserves continuous attention.
doi_str_mv 10.3390/ijerph20043478
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subjects 2,4-D
Apportionment
Benzofurans
Biomass energy
Carcinogens
Cement
China
Congeners
Contamination
Correlation analysis
Dibenzofurans
Dioxin
Dioxins
Emissions
Health
Health aspects
Health risk assessment
Health risks
Heat resistance
Herbicides
Humans
Industrial districts
Industrial parks
Metallurgy
Naphthalenes - analysis
PCB
Persistent organic pollutants
Pigments
Pollutants
Polychlorinated biphenyls
Polychlorinated Biphenyls - analysis
Polychlorinated Dibenzodioxins
Polychlorinated naphthalenes
Power plants
Sediment pollution
Site planning
Soil
Soil contamination
Soil pollution
Soils
Spatial distribution
Stainless steel
Steel production
title PCBs, PCNs, and PCDD/Fs in Soil around an Industrial Park in Northwest China: Levels, Source Apportionment, and Human Health Risk
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