厦门近海域邻苯二甲酸酯分布和生态风险研究  

Method Research of Determination of Phthalate in Seawater and Sediment by Gas Chromatography-Mass Spectrometry

作　　者：刘丽华 LIU Lihua(Fujian Xiamen Environmental Monitoring Central Station,Xiamen 361022,China)

机构地区：[1]福建省厦门环境监测中心站,福建厦门361022

出　　处：《环境科学与技术》2024年第5期208-215,共8页Environmental Science & Technology

基　　金：福建省环保科技计划项目(2023R002);福建省厦门环境监测中心站环保科技项目(2022S01)。

摘　　要：邻苯二甲酸酯(PAEs)在工业生产中被广泛用作增塑剂,目前,在全球环境基质中该类污染物已被广泛检出。该研究对厦门近海域海水和沉积物中的PAEs类有机污染物的分布特征和生态风险污染进行评价,利用气相色谱质谱联用法测定了样品中的PAEs的浓度。结果表明,厦门近岸海域中水相和沉积相共检出11中PAEs类化合物,水中总PAEs浓度范围为45.9~251.1 ng/L,平均浓度为109.2 ng/L。沉积物中浓度为范围为8.12~50.29μg/kg,平均浓度为27.7μg/kg。运用风险熵值法对近海域水中的PAEs进行风险评估,其结果表明邻苯二甲酸二丁酯具有中等生态风险等级,需要针对该类物质开展区域性污染溯源研究。Phthalic acid esters(PAEs)are widely used as plasticizers in industrial production.At present,this type of pollut-ant has been widely detected in the global environment.The distribution characteristics and ecological risk pollution of phthal-ate organic pollutants in seawater and sediments near Xiamen were evaluated,and gas chromatography-mass spectrometry was used to determine the concentration of PAEs in the samples.The results showed that a total of 11 PAEs compounds were mainly detected in the aqueous and sedimentary environmental media,and the total PAEs mass concentration in water ranged from 45.9~251.1 ng/L,with an average concentration of 109.2 ng/L.The concentration in sediment ranges from 8.12~50.29μg/kg,with an average concentration of 27.7μg/kg.The risk entropy method was used to assess the risk of PAEs in the near sea area,and the results showed that DBP has a moderate ecological risk level.It is necessary to further trace the pollution emissions of PAEs in these areas.

关 键 词：邻苯二甲酸酯类 气相色谱-质谱联用法 海水 沉积物 生态风险评价 

分 类 号：X834[环境科学与工程—环境工程]