文献类型： 外文期刊
作者： Dong, Huike 1 ; Wang, Xiaoping 1 ; Xu, Li 6 ; Ding, Jiannan 3 ; Wania, Frank 4 ;
作者机构： 1.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resources, Beijing 100101, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Jiangnan Univ, Sch Environm & Civil Engn, Wuxi 214122, Peoples R China
4.Univ Toronto Scarborough, Dept Phys & Environm Sci, Toronto, ON M1C 1A4, Canada
5.Univ Chinese Acad Sci, Sch Sci, Beijing 100049, Peoples R China
6.Beijing Acad Agr & Forestry Sci, Inst Qual Stand & Testing Technol, Beijing 100097, Peoples R China
7.Beijing Municipal Key Lab Agr Environm Monitoring, Beijing 100097, Peoples R China
关键词： atmospheric MP; flow-through sampler; sampling rate; MP characteristics; high efficiency
期刊名称：ENVIRONMENTAL SCIENCE & TECHNOLOGY （ 影响因子：11.4； 五年影响因子：12.0 ）
ISSN： 0013-936X
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Microplastics (MP) in air have attracted increasing attention because of their ubiquitous presence. Accurate atmospheric concentrations of MP are essential for evaluating their capacity for long-range transport and for assessing human inhalation risk. In order to sample airborne MP in locations with limited power supply, we adapted a flow-through passive sampler by placing a glass fiber filter in the inner sampling tube. To test the new sampler's performance under field conditions, two sizes of the flow-through sampler (with diameters of 20 and 10 cm) and a conventionally pumped high-volume air sampler were co-deployed on the Lhasa campus of the Institute of Tibetan Plateau Research. Accurate sampling volumes could be estimated from a relationship between wind speeds recorded outside and inside of the flow-through sampler. Atmospheric concentrations and compositions of MP that compared favorably with those obtained by active sampling indicate that the larger version of the flow-through passive sampler can provide reproducible and quantitative information on atmospheric MP at sites with limited or unreliable power supply. This capability should be useful in large-scale and high-temporal resolution air monitoring networks for MP.
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