Phthalates in the urban drainage channels on the outskirt of the São Vicente Island (São Paulo, Brazil): occurrence and ecological risk assessment

Abstract

PAEs (Phthalate Acid Esters) are a group of plasticizing chemical compounds are used in plastic industry worldwide that are well known for their environmental contamination and toxicological effects as endocrine disruptors. In this work, the occurrence and preliminary ecological risk of six PAEs, namely Dimethyl phthalate (DMP), Diethyl phthalate (DEP), Di-n-octyl phthalate (DnOP), Butyl benzyl phthalate (BBP), Di-n-butyl phthalate (DBP), Di(2-ethylhexyl) phthalate (DEHP) were investigated, for the first time, in five urban drainage channels located along the poor nearby outskirts neighbourhoods of the São Vicente city, São Paulo, Brazil, whose diffuse loads flow continuously to estuarine waters of this island. Of these, three congeners DMP (

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奥维森特岛(巴西圣保罗)郊区城市排水渠道中的邻苯二甲酸盐:发生和生态风险评估

邻苯二甲酸酯(PAEs, Phthalate Acid Esters，简称PAEs)是一组在全球塑料工业中广泛使用的增塑剂化合物，因其对环境的污染和对内分泌的毒理学影响而闻名。在这项工作中，首次调查了六种PAEs的发生和初步生态风险，即邻苯二甲酸二甲酯(DMP)，邻苯二甲酸二乙酯(DEP)，邻苯二甲酸二辛酯(DnOP)，邻苯二甲酸丁苯酯(BBP)，邻苯二甲酸二丁酯(DBP)，邻苯二甲酸二(2-乙基己基)邻苯二甲酸二(DEHP)。这些PAEs位于巴西圣保罗 o Vicente市贫困郊区附近的五个城市排水通道，它们的扩散负荷不断流入该岛的河口水域。其中，DMP (< LOD-0.023 μg/L)、DEP (< LOD-0.033 μg/L)和DBP (< LOD-0.042 μg/L)三个同系物采用GC-MS /MS(气相色谱仪耦合串联质谱)一致定量。具体而言，DBP的出现表明 o Vicente河口的环境问题，因为结果表明中度风险(对藻类和鱼类)，甲壳类动物急性暴露后的生态风险很高。因此，即使在低浓度下，PAES在该沿海地区的发生也不容忽视。此外，本研究强调需要进一步进行生态毒理学研究(特别是对热带海洋生物)，以评估这些生物活性化合物的毒性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。