Polycyclic aromatic hydrocarbons (PAHs) in soils of an industrial area in semi-arid Uzbekistan: spatial distribution, relationship with trace metals and risk assessment

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Title: Polycyclic aromatic hydrocarbons (PAHs) in soils of an industrial area in semi-arid Uzbekistan: spatial distribution, relationship with trace metals and risk assessment
Authors: Bandowe, Benjamin A. Musa, Shukurov, Nosir, Leimer, Sophia, Kersten, Michael, Steinberger, Yosef, Wilcke, Wolfgang, Multiphase Chemistry Department, Max-Planck Institute for Chemistry, Mainz, Germany, Geosciences Institute, Johannes Gutenberg-University, Mainz, Germany, Institute of Geography and Geoecology, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany, The Mina and Everard Goodman, Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
Source: Environ Geochem Health
Environmental geochemistry and health : official journal of the Society for Environmental Geochemistry and Health
Environmental Geochemistry and Health
Publisher Information: Springer Science and Business Media LLC, 2021.
Publication Year: 2021
Subject Terms: Metal mining, Canada, China, Geography & travel, Chemie, Pollution transect, Smelting area, Risk Assessment, 01 natural sciences, Soil, Central Asia, Geographie, Soil health, 11. Sustainability, Humans, Soil Pollutants, Polycyclic Aromatic Hydrocarbons, Ecosystem, 0105 earth and related environmental sciences, Original Paper, Uzbekistan [MeSH], Risk Assessment [MeSH], Humans [MeSH], Metallurgy [MeSH], Soil Pollutants/analysis [MeSH], Ecosystem [MeSH], Soil [MeSH], Environmental Monitoring [MeSH], Canada [MeSH], China [MeSH], Polycyclic Aromatic Hydrocarbons/analysis [MeSH], Uzbekistan, 15. Life on land, ddc:910, 6. Clean water, 13. Climate action, Metallurgy, ddc:363.7, Environmental Monitoring
Description: The concentrations, composition patterns, transport and fate of PAHs in semi-arid and arid soils such as in Central Asia are not well known. Such knowledge is required to manage the risk posed by these toxic chemicals to humans and ecosystems in these regions. To fill this knowledge gap, we determined the concentrations of 21 parent PAHs, 4,5-methylenephenanthrene, 6 alkylated PAHs, and biphenyl in soils from 11 sampling locations (0–10, 10–20 cm soil depths) along a 20-km transect downwind from the Almalyk metal mining and metallurgical industrial complex (Almalyk MMC), Uzbekistan. The concentrations of Σ29 PAHs and Σ16 US-EPA PAHs were 41–2670 ng g−1 and 29–1940 ng g−1, respectively. The highest concentration of Σ29 PAHs occurred in the immediate vicinity of the copper smelting factory of the Almalyk MMC. The concentrations in topsoil decreased substantially to a value of ≤ 200 ng g−1 (considered as background concentration) at ≥ 2 km away from the factory. Low molecular weight PAHs dominated the PAH mixtures at less contaminated sites and high molecular weight PAHs at the most contaminated site. The concentration of Σ16 US-EPA PAHs did not exceed the precautionary values set by the soil quality guidelines of, e.g., Switzerland and Germany. Similarly, the benzo[a]pyrene equivalent concentration in soils near the Almalyk MMC did not exceed the value set by the Canadian guidelines for the protection of humans from carcinogenic PAHs in soils. Consequently, the cancer risk due to exposure to PAHs in these soils can be considered as low.
Document Type: Article
Other literature type
File Description: application/pdf
Language: English
ISSN: 1573-2983
0269-4042
DOI: 10.1007/s10653-021-00974-3
DOI: 10.5445/ir/1000133882
Access URL: https://link.springer.com/content/pdf/10.1007/s10653-021-00974-3.pdf
https://pubmed.ncbi.nlm.nih.gov/34041653
https://link.springer.com/content/pdf/10.1007/s10653-021-00974-3.pdf
https://publikationen.bibliothek.kit.edu/1000133882/117413924
https://europepmc.org/article/MED/34041653
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https://publikationen.bibliothek.kit.edu/1000133882
http://hdl.handle.net/21.11116/0000-0008-D72F-2
http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11029
https://publikationen.bibliothek.kit.edu/1000133882/117413924
https://publikationen.bibliothek.kit.edu/1000133882
https://doi.org/10.5445/IR/1000133882
https://repository.publisso.de/resource/frl:6446145
Rights: CC BY
URL: http://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (http://creativecommons.org/licenses/by/4.0/) .
Accession Number: edsair.doi.dedup.....a2578927d60783845553b6edf0c0f7ab
Database: OpenAIRE
Description
Abstract:The concentrations, composition patterns, transport and fate of PAHs in semi-arid and arid soils such as in Central Asia are not well known. Such knowledge is required to manage the risk posed by these toxic chemicals to humans and ecosystems in these regions. To fill this knowledge gap, we determined the concentrations of 21 parent PAHs, 4,5-methylenephenanthrene, 6 alkylated PAHs, and biphenyl in soils from 11 sampling locations (0–10, 10–20 cm soil depths) along a 20-km transect downwind from the Almalyk metal mining and metallurgical industrial complex (Almalyk MMC), Uzbekistan. The concentrations of Σ29 PAHs and Σ16 US-EPA PAHs were 41–2670 ng g−1 and 29–1940 ng g−1, respectively. The highest concentration of Σ29 PAHs occurred in the immediate vicinity of the copper smelting factory of the Almalyk MMC. The concentrations in topsoil decreased substantially to a value of ≤ 200 ng g−1 (considered as background concentration) at ≥ 2 km away from the factory. Low molecular weight PAHs dominated the PAH mixtures at less contaminated sites and high molecular weight PAHs at the most contaminated site. The concentration of Σ16 US-EPA PAHs did not exceed the precautionary values set by the soil quality guidelines of, e.g., Switzerland and Germany. Similarly, the benzo[a]pyrene equivalent concentration in soils near the Almalyk MMC did not exceed the value set by the Canadian guidelines for the protection of humans from carcinogenic PAHs in soils. Consequently, the cancer risk due to exposure to PAHs in these soils can be considered as low.
ISSN:15732983
02694042
DOI:10.1007/s10653-021-00974-3