Inhalation exposure to size-segregated fine particles and particulate PAHs for the population burning biomass fuels in the Eastern Tibetan Plateau area
Inhalation exposure to size-segregated fine particles and particulate PAHs for the population burning biomass fuels in the Eastern Tibetan Plateau area
复制标题
青藏高原东部地区燃烧生物质燃料的人群吸入尺寸分离的细颗粒和颗粒状多环芳烃的暴露情况
DOI：
10.1016/j.ecoenv.2021.111959
复制
发表时间：
2021-01-25
影响因子：
6.8
通讯作者：
Tao, Shu
中科院分区：
文献类型：
--
作者：
Huang, Ye;Wang, Jinze;Tao, Shu
室内生物质燃烧会产生大量的小颗粒和有害污染物，导致严重的空气污染和与吸入接触有关的潜在高健康风险。个人采样器提供了更准确的吸入接触估计。在这项研究中，通过部署个人采样器研究了生物质用户吸入暴露于尺寸隔离颗粒和颗粒多环芳烃（PAHs）。研究发现，每日PM2.5吸入暴露水平高达121 +/- 96 μ g/m3，超过84%为较细的PM1.0。对于多环芳烃，暴露水平为113 +/- 188 ng/m3，其中超过77%在PM1.0中。具有较大潜在毒性的高分子量多环芳烃富集在较小的颗粒中，导致与多环芳烃吸入暴露相关的高风险。由于室内空气污染严重和在室内居住时间较长，室内暴露占总吸入暴露的80%。在家中进行烹饪活动的男性吸烟者的暴露风险最高。
Indoor biomass burning produces large amounts of small particles and hazardous contaminants leading to severe air pollution and potentially high health risks associated with inhalation exposure. Personal samplers provide more accurate estimates of inhalation exposure. In this study, inhalation exposure to size-segregated particles and particulate polycyclic aromatic hydrocarbons (PAHs) for the biomass user was studied by deploying personal samplers. The study found that daily PM2.5 inhalation exposure level was as high as 121 +/- 96 mu g/m(3), and over 84% was finer PM1.0. For PAHs, the exposure level was 113 +/- 188 ng/m(3), with over 77% in PM1.0. High molecular weight PAHs with larger toxic potentials enriched in smaller particles resulting in much high risks associated with PAHs inhalation exposure. Indoor exposure contributed to similar to 80% of the total inhalation exposure as a result of high indoor air pollution and longer residence spent indoor. The highest exposure risk was found for the male smoker who conducted cooking activities at home.