Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs/Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin 300191, China; Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs/Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin 300191, China.
Sci Total Environ. 2021 Jul 15;778:146281. doi: 10.1016/j.scitotenv.2021.146281. Epub 2021 Mar 8.
The widespread presence of phthalate esters (PAEs) in a variety of agricultural inputs has led to PAE contamination in soils and farm products. The endocrine disruption and carcinogenicity of PAEs have attracted much attention. Our research investigated the characteristics of PAE pollution in the soils of vegetable fields and adjacent stable crop fields in four provinces/municipalities across a major agricultural production area in China. We found that the concentrations of PAEs in vegetable soils were not significantly higher than those in stable crop soils. The noncarcinogenic and carcinogenic risks from bis (2-ethylhexyl) phthalate (DEHP) and dibutyl phthalate (DBP) to humans were calculated to represent the risk posed by PAEs. The results showed that diet was the main route for noncarcinogenic risks from PAEs in crop soil and vegetable soils. Because of the combined effect of the population dietary structure and the concentration of PAEs in soils, the noncarcinogenic risks from PAEs in crop soils were similar to or higher than those in vegetable soils. The same pattern was also applicable to the carcinogenic risk from DEHP. Low noncarcinogenic and carcinogenic risks posed by DEHP and DBP indicated that the current level of PAEs in soils did not decrease the safety of agricultural products in the Huang-Huai-Hai region. Stable crop soil, as a non-negligibly phthalate-polluted area, is worthy of as much attention as vegetable soil. This study provides scientific support for food safety risk assessment and control of PAE pollution in the main agricultural production areas in China.
邻苯二甲酸酯（PAEs）广泛存在于各种农业投入品中，导致土壤和农产品受到 PAE 污染。PAE 的内分泌干扰和致癌性引起了广泛关注。我们的研究调查了中国一个主要农业生产区四个省/直辖市蔬菜地及相邻稳定作物地土壤中 PAE 污染的特征。结果发现，蔬菜地土壤中 PAE 浓度并不明显高于稳定作物土壤。通过计算二（2-乙基己基）邻苯二甲酸酯（DEHP）和邻苯二甲酸二丁酯（DBP）对人类的非致癌和致癌风险，来评估 PAE 带来的风险。结果表明，饮食是作物和蔬菜土壤中 PAE 非致癌风险的主要途径。由于人口饮食结构和土壤中 PAE 浓度的综合影响，作物土壤和蔬菜土壤中 PAE 的非致癌风险相似或高于蔬菜土壤。DEHP 的致癌风险也存在同样的模式。DEHP 和 DBP 带来的低非致癌和致癌风险表明，目前土壤中 PAE 的水平并未降低黄淮海地区农产品的安全性。稳定作物土壤作为一个不可忽视的邻苯二甲酸酯污染区，值得像蔬菜土壤一样受到关注。本研究为中国主要农业生产区的食品安全风险评估和 PAE 污染控制提供了科学依据。
