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    曹亚强, 顾雯, 崔倩, 庄思琪, 陈圆圆, 张续, 董小艳, 唐宋. 北京市朝阳区采暖期和非采暖期PM2.5中四种邻苯二甲酸酯的污染特征及健康风险[J]. 环境卫生学杂志, 2022, 12(2): 95-101. DOI: 10.13421/j.cnki.hjwsxzz.2022.02.004
    引用本文: 曹亚强, 顾雯, 崔倩, 庄思琪, 陈圆圆, 张续, 董小艳, 唐宋. 北京市朝阳区采暖期和非采暖期PM2.5中四种邻苯二甲酸酯的污染特征及健康风险[J]. 环境卫生学杂志, 2022, 12(2): 95-101. DOI: 10.13421/j.cnki.hjwsxzz.2022.02.004
    shu
    CAO Ya-qiang, GU Wen, CUI Qian, ZHUANG Si-qi, CHEN Yuan-yuan, ZHANG Xu, DONG Xiao-yan, TANG Song. Pollution characteristics and health risk assessments of four phthalate esters in PM2.5 during heating and non-heating periods in Chaoyang District of Beijing[J]. Journal of Environmental Hygiene, 2022, 12(2): 95-101. DOI: 10.13421/j.cnki.hjwsxzz.2022.02.004
    Citation: CAO Ya-qiang, GU Wen, CUI Qian, ZHUANG Si-qi, CHEN Yuan-yuan, ZHANG Xu, DONG Xiao-yan, TANG Song. Pollution characteristics and health risk assessments of four phthalate esters in PM2.5 during heating and non-heating periods in Chaoyang District of Beijing[J]. Journal of Environmental Hygiene, 2022, 12(2): 95-101. DOI: 10.13421/j.cnki.hjwsxzz.2022.02.004
    shu

    北京市朝阳区采暖期和非采暖期PM2.5中四种邻苯二甲酸酯的污染特征及健康风险

    Pollution characteristics and health risk assessments of four phthalate esters in PM2.5 during heating and non-heating periods in Chaoyang District of Beijing

      摘要
    • 摘要:
      目的 了解北京市朝阳区采暖期和非采暖期大气细颗粒物（fine particulate matter，PM2.5）中四种邻苯二甲酸酯（phthalate esters，PAEs）污染状况，并对其健康风险进行评估。
      方法 使用大流量采样器结合玻璃纤维滤膜采集北京市朝阳区采暖期和非采暖期PM2.5样品，利用气相色谱-静电场轨道阱高分辨质谱法（GC-Orbitrap-MS）分析其中邻苯二甲酸丁基苄基酯（butylbenzyl phthalate，BBP）、邻苯二甲酸二丁酯（dibutyl phthalate，DBP）、邻苯二甲酸二异丁酯（diisobutyl phthalate，DiBP）、邻苯二甲酸二异壬酯（diisononyl phthalate，DiNP）四种邻苯二甲酸酯的浓度水平。
      结果 四种目标PAEs均有不同程度检出，其中DiBP和DBP的检出率最高，总检出率均为100%；采暖期PM2.5中Σ4PAEs平均浓度为143.07 ng/m3，是非采暖期浓度的16.5倍；采暖期PM2.5中单体含量为DiBP > DBP > BBP > DiNP，非采暖期则为DiBP > DBP > DiNP > BBP；非采暖期Σ4PAEs浓度与PM2.5浓度呈正相关（rs=0.419，P < 0.05），而采暖期无显著相关性；采暖期和非采暖期目标PAEs经呼吸途径对成人和儿童累积暴露的危害指数（hazard index，HI）均小于1。
      结论 北京市朝阳区采暖期和非采暖期PM2.5中四种目标邻苯二甲酸酯暴露健康风险均在可接受范围。

       

      Abstract:
      Objective To understand the pollution characteristics of phthalate esters(PAEs) in PM2.5 during heating and non-heating periods in Chaoyang District of Beijing and to assess their health risks.
      Methods A high-flow sampler combined with glass fiber filter were used to collect PM2.5 samples during heating and non-heating periods in Chaoyang District of Beijing, the concentration levels of butylbenzyl phthalate (BBP), dibutyl phthalate (DBP), diisobutyl phthalate (DiBP), and diisononyl phthalate (DiNP) in samples were analyzed by GC-Orbitrap-MS.
      Results Four kinds of targeted PAEs were detected in different degrees, among which DiBP and DBP had the highest detection rate of 100%. The average concentration of Σ4PAEs in PM2.5 during heating period was 143.07 ng/m3, which was 16.5 times higher than that of non-heating period. The monomer contents of PM2.5 in heating period were ranked as DiBP > DBP > BBP > DiNP, and DiBP > DBP > DiNP > BBP in non-heating period. Σ4PAEs concentration was positively correlated with PM2.5 concentration in non-heating period (rs=0.419, P < 0.05), but there was no significant correlation in heating period. The hazard indexes (HI) of targeted PAEs exposure to adults and children through respiratory pathway were less than 1 in both heating and non-heating periods.
      Conclusion Four kinds of targeted PAEs were found in PM2.5 during heating and non-heating periods in Chaoyang District of Beijing, and their health risks of exposure were acceptable.

       

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