Fujian Key Laboratory of Pollution Control and Resource Reuse, College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350117, China.
Fujian Key Laboratory of Pollution Control and Resource Reuse, College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350117, China.
J Environ Sci (China). 2025 Apr;150:571-581. doi: 10.1016/j.jes.2024.03.005. Epub 2024 Mar 16.
Fifty agricultural soil samples collected from Fuzhou, southeast China, were first investigated for the occurrence, distribution, and potential risks of twelve organophosphate esters (OPEs). The total concentration of OPEs (ΣOPEs) in soil ranged from 1.33 to 96.5 ng/g dry weight (dw), with an average value of 17.1 ng/g dw. Especially, halogenated-OPEs were the predominant group with a mean level of 9.75 ng/g dw, and tris(1-chloro-2-propyl) phosphate (TCIPP) was the most abundant OPEs, accounting for 51.1% of ΣOPEs. The concentrations of TCIPP and ∑OPEs were found to be significantly higher (P < 0.05) in soils of urban areas than those in suburban areas. In addition, the use of agricultural plastic films and total organic carbon had a positive effect on the occurrence of OPE in this study. The positive matrix factorization model suggested complex sources of OPEs in agricultural soils from Fuzhou. The ecological risk assessment demonstrated that tricresyl phosphate presented a medium risk to land-based organisms (0.1 ≤ risk quotient < 1.0). Nevertheless, the carcinogenic and non-carcinogenic risks for human exposure to OPEs through soil ingestion and dermal absorption were negligible. These findings would facilitate further investigations into the pollution management and risk control of OPEs.
从中国东南部的福州采集了 50 个农业土壤样本，首先调查了 12 种有机磷酸酯 (OPE) 的发生、分布和潜在风险。土壤中 OPE 的总浓度 (ΣOPEs) 范围为 1.33 至 96.5ng/g 干重 (dw)，平均值为 17.1ng/g dw。特别是卤代-OPEs 是主要的一组，平均水平为 9.75ng/g dw，三(1-氯-2-丙基)磷酸酯 (TCIPP) 是最丰富的 OPEs，占 ΣOPEs 的 51.1%。研究发现，城市地区土壤中 TCIPP 和∑OPEs 的浓度明显高于郊区（P<0.05）。此外，农业塑料薄膜和总有机碳的使用对 OPE 在该研究中的出现有积极影响。正矩阵因子模型表明福州农业土壤中 OPE 存在复杂的来源。生态风险评估表明，磷酸三(三甲苯)酯对陆地生物具有中等风险（0.1≤风险商<1.0）。然而，通过土壤摄入和皮肤吸收接触 OPE 对人体的致癌和非致癌风险可以忽略不计。这些发现将有助于进一步调查 OPE 的污染管理和风险控制。
