瓶装饮用水中微塑料的含量研究  

Study on the occurrence of microplastics in bottled drinking water

作　　者：郑涵云 武志鑫 李全威 杨颖 王慢想[1] 安立会[1] 王菲菲[1] ZHENG Hanyun;WU Zhixin;LI Quanwei;YANG Ying;WANG Manxiang;AN Lihui;WANG Feifei(State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences)

机构地区：[1]环境基准与风险评估国家重点实验室,中国环境科学研究院

出　　处：《环境工程技术学报》2024年第3期758-763,共6页Journal of Environmental Engineering Technology

基　　金：食品安全毒理学研究与评价北京市重点实验室开放基金课题(KF2021-01)。

摘　　要：聚焦瓶装水中微塑料污染的来源特征(水源及包装材料)和小粒径微塑料检测方法的瓶颈问题,选择市面上常见的不同品牌及不同类型的瓶装水作为研究对象,采用热脱附-气相色谱质谱法(ATD-GCMS)对水中5种微塑料(PP、PE、PS、PVC、PET)的含量进行检测。结果显示:瓶装水中微塑料主要成分为PVC[(2.95±2.03)μg/L]、PET [(1.84±2.14)μg/L]及PE [(1.86±1.84)μg/L];国内外不同品牌瓶装矿泉水中PVC和PET含量存在显著性差异(P<0.05),PE含量差异不显著;不同品牌纯净水之间PVC和PET含量差异不具有统计学意义,但PE含量存在显著差异(P<0.05)。瓶装水中微塑料的赋存情况受到水源水中微塑料污染情况的影响和包装材料微塑料的释放影响,通过比较分析瓶装饮用水中微塑料赋存特征可为未来制定降低饮用水微塑料摄入风险和健康风险防控相关管理措施提供数据支撑。Focusing on the source characteristics(including water source and packaging materials)of microplastic pollution in bottled water and the bottleneck problem restricting the detection of small-particle microplastics,different brands and different types of bottled water commonly available on the market were selected as research objects,and the concentrations of microplastics(PP,PE,PS,PVC,PET)in the water samples were detected by automatic thermal desorption-gas chromatography-mass spectrometry(ATD-GCMS).The results showed that the main components of microplastics in bottled water were PVC[(2.95±2.03)μg/L],PET[(1.84±2.14)μg/L]and PE[(1.86±1.84)μg/L].There were significant differences in PVC(P<0.05)and PET(P<0.05)contents in the bottled mineral water,but no significant differences in PE contents.By contrast,there was no statistical significance of PVC and PET contents in different brands of purified water,but there were significant differences in PE contents(P<0.05).The occurrence of microplastics in bottled water was affected by microplastic pollution in source water and the release of microplastics in packaging materials.By comparing and analyzing the occurrence characteristics of microplastics in bottled drinking water,data support should be provided for the future development of management measures to reduce the risk of microplastic intake by drinking water and to prevent and control the health risks.

关 键 词：微塑料 瓶装水 饮用水 瓶身材料 瓶盖材料 塑料包装 

分 类 号：X502[环境科学与工程—环境工程]