| 山东省农田土壤中全氟化合物的含量及来源解析 |
| 摘要点击 245 全文点击 9 投稿时间：2025-01-08 修订日期：2025-06-12 |
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| 中文关键词 山东省 农田土壤 全氟化合物（PFASs） 分布特征 来源解析 |
| 英文关键词 Shandong Province agricultural soils per- and polyfluoroalkyl substances （PFASs） distribution characteristics source analysis |
| DOI 10.13227/j.hjkx.202501098 |
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| 中文摘要 |
| 近年来，全氟化合物（PFASs）在各种环境介质中频繁检出，因具有环境持久性和毒性特征受到广泛关注. 当前，受点源污染的环境介质中PFASs含量的调查逐渐完善，而针对农田土壤中PFASs含量的研究较少. 从山东省采集了16个农田土壤样品，检测到了27种目标PFASs，ω（PFASs）范围为0.325~3.717 μg·kg-1. 传统类PFASs占比为83.90%，新兴类PFASs占比为13.19%，全氟辛酸（PFOA）、全氟辛烷磺酸（PFOS）和全氟己烷磺酸（PFHxS）为土壤中主要组分. 结合主成分分析（PCA）、正定矩阵因子分解（PMF）模型和点位周边企业分布情况分析农田土壤中PFASs的潜在来源. 来源解析结果显示，电镀、纺织和造纸行业的工业排放可能是导致山东省农田土壤中传统类PFASs占主导地位的首要原因，该来源贡献率为82.9%；新兴类和前体类PFASs可能来自于大气传输、皮革和表面活性剂行业的工业排放，污染贡献率为83.0%和86.7%；全氟醚羧酸类可能源于橡胶行业的影响，污染贡献率为83.2%. 提供的农田土壤中PFASs的基础数据，有助于农田土壤中PFASs管理决策的制定. |
| 英文摘要 |
| In recent years， per- and polyfluoroalkyl substances （PFASs） have been frequently detected in various environmental media and have attracted increasing attention due to their environmental persistence and toxicological characteristics. While investigations of PFASs concentrations in point source-contaminated environments have become increasingly comprehensive， studies focusing on PFASs levels in agricultural soils remain limited. Sixteen agricultural soil samples were collected from Shandong Province， and 27 target PFASs were detected， with total concentrations ranging from 0.325 to 3.717 μg·kg-1. Legacy PFASs accounted for 83.90% of the total concentration， while emerging PFASs represented 13.19%， with perfluorooctanoic acid （PFOA）， perfluorooctane sulfonate （PFOS）， and perfluorohexane sulfonate （PFHxS） being the dominant compounds. To identify potential sources of PFASs in the agricultural soils， principal component analysis （PCA）， positive matrix factorization （PMF）， and an assessment of surrounding industrial activities were employed. Source apportionment results indicated that emissions from electroplating， textile， and paper industries were likely the primary contributors to the dominance of legacy PFASs in the soils， with a contribution rate of 82.9%. Emerging and precursor PFASs were potentially derived from atmospheric transport， as well as emissions from the leather and surfactant industries， contributing 83.0% and 86.7%， respectively. Ether carboxylic acids were mainly associated with the rubber industry， contributing 83.2% of the observed pollution. This study provides baseline data on PFASs in agricultural soils， which is essential for informing management and regulatory decisions related to PFASs contamination in agricultural soils. |
