The occurrence and safety evaluation of phthalic acid esters in Oasis agricultural soils of Xinjiang, China

Soil pollution caused by plastic residues containing additives (e.g. phthalic acid esters (PAEs)) is ubiquitous and has become a global concern. However, the distribution, accumulation, and potential risks associated with PAEs in agricultural soils have not been fully explored. This study quantified...

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Main Authors: Hejiang Liu, Xiuting Liu, Kai Wang, Xingwang Ma, Haihe Gao, Xuejun Liu, Changrong Yan
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Ecotoxicology and Environmental Safety
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Online Access:http://www.sciencedirect.com/science/article/pii/S0147651324016695
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author Hejiang Liu
Xiuting Liu
Kai Wang
Xingwang Ma
Haihe Gao
Xuejun Liu
Changrong Yan
author_facet Hejiang Liu
Xiuting Liu
Kai Wang
Xingwang Ma
Haihe Gao
Xuejun Liu
Changrong Yan
author_sort Hejiang Liu
collection DOAJ
description Soil pollution caused by plastic residues containing additives (e.g. phthalic acid esters (PAEs)) is ubiquitous and has become a global concern. However, the distribution, accumulation, and potential risks associated with PAEs in agricultural soils have not been fully explored. This study quantified the types, concentrations, and distribution patterns of common PAEs in 29 agricultural soil samples collected from the Xinjiang Oasis, China. The results indicated that no significant variation in PAE concentrations across the oasis farmlands in Xinjiang. The PAEs were predominantly concentrated in the topsoil layer (0–20 cm), with an average concentration of 102.3 μg/kg, with some migration observed to the deeper soil layer (20–40 cm). The most abundant PAEs detected were Di (2-ethylhexyl) phthalate (DEHP), diisobutyl phthalate (DIBP), and diethyl phthalate (DEP), which accounted for 49.82 %, 23.74 %, and 20.96 % of the total, respectively. Furthermore, the concentrations of all PAEs were below China's soil quality risk control standards, and the non-carcinogenic risks to both adults and children were below the current threshold, indicating relatively low risks to both the human health and the environment. These findings are crucial for understanding the presence and safety evaluation of PAEs in Xinjiang Oasis farmland, and they provide important reference data for managing and controlling PAE contamination in agricultural soils.
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spelling doaj-art-03d8b10a42524c0590f9e72bce0456012025-02-12T05:29:55ZengElsevierEcotoxicology and Environmental Safety0147-65132025-01-01290117593The occurrence and safety evaluation of phthalic acid esters in Oasis agricultural soils of Xinjiang, ChinaHejiang Liu0Xiuting Liu1Kai Wang2Xingwang Ma3Haihe Gao4Xuejun Liu5Changrong Yan6Institute of Quality Standards & Testing Technology for Agro-Products, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, PR ChinaState Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, National Observation and Research Station of Agriculture Green Development (Quzhou, Hebei), China Agricultural University, Beijing 100193, China; Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR ChinaState Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, National Observation and Research Station of Agriculture Green Development (Quzhou, Hebei), China Agricultural University, Beijing 100193, ChinaInstitute of Soil, Fertilizer and Water-saving, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, PR ChinaInstitute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR ChinaState Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, National Observation and Research Station of Agriculture Green Development (Quzhou, Hebei), China Agricultural University, Beijing 100193, ChinaInstitute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China; Corresponding author.Soil pollution caused by plastic residues containing additives (e.g. phthalic acid esters (PAEs)) is ubiquitous and has become a global concern. However, the distribution, accumulation, and potential risks associated with PAEs in agricultural soils have not been fully explored. This study quantified the types, concentrations, and distribution patterns of common PAEs in 29 agricultural soil samples collected from the Xinjiang Oasis, China. The results indicated that no significant variation in PAE concentrations across the oasis farmlands in Xinjiang. The PAEs were predominantly concentrated in the topsoil layer (0–20 cm), with an average concentration of 102.3 μg/kg, with some migration observed to the deeper soil layer (20–40 cm). The most abundant PAEs detected were Di (2-ethylhexyl) phthalate (DEHP), diisobutyl phthalate (DIBP), and diethyl phthalate (DEP), which accounted for 49.82 %, 23.74 %, and 20.96 % of the total, respectively. Furthermore, the concentrations of all PAEs were below China's soil quality risk control standards, and the non-carcinogenic risks to both adults and children were below the current threshold, indicating relatively low risks to both the human health and the environment. These findings are crucial for understanding the presence and safety evaluation of PAEs in Xinjiang Oasis farmland, and they provide important reference data for managing and controlling PAE contamination in agricultural soils.http://www.sciencedirect.com/science/article/pii/S0147651324016695Phthalic acid esterDistributionEnvironmental safetyFarmland soilXinjiang Oasis
spellingShingle Hejiang Liu
Xiuting Liu
Kai Wang
Xingwang Ma
Haihe Gao
Xuejun Liu
Changrong Yan
The occurrence and safety evaluation of phthalic acid esters in Oasis agricultural soils of Xinjiang, China
Ecotoxicology and Environmental Safety
Phthalic acid ester
Distribution
Environmental safety
Farmland soil
Xinjiang Oasis
title The occurrence and safety evaluation of phthalic acid esters in Oasis agricultural soils of Xinjiang, China
title_full The occurrence and safety evaluation of phthalic acid esters in Oasis agricultural soils of Xinjiang, China
title_fullStr The occurrence and safety evaluation of phthalic acid esters in Oasis agricultural soils of Xinjiang, China
title_full_unstemmed The occurrence and safety evaluation of phthalic acid esters in Oasis agricultural soils of Xinjiang, China
title_short The occurrence and safety evaluation of phthalic acid esters in Oasis agricultural soils of Xinjiang, China
title_sort occurrence and safety evaluation of phthalic acid esters in oasis agricultural soils of xinjiang china
topic Phthalic acid ester
Distribution
Environmental safety
Farmland soil
Xinjiang Oasis
url http://www.sciencedirect.com/science/article/pii/S0147651324016695
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