國家衛生研究院 NHRI:Item 3990099045/16168
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    题名: Impact of seasonal changes and environmental conditions on suspended and inhalable microplastics in urban air
    作者: Chen, YC;Wei, CH;Hsu, WT;Proborini, WD;Hsiao, TC;Liu, ZS;Chou, HC;Soo, JC;Dong, GC;Chen, JK
    贡献者: National Institute of Environmental Health Sciences;Institute of Biomedical Engineering and Nanomedicine
    摘要: Microplastics (MPs) are ubiquitous environmental pollutants extensively detected in atmospheric environments. Airborne MPs have raised concerns due to their transport and potential health risks of inhalation exposure. However, the factors influencing airborne MPs, particularly their concentrations and shapes suspended in urban air, remain unclear. We investigated MPs in total suspension particles with one-year measurements in Taipei City and identified their features using Nile Red staining combined with fluorescence microscopy and micro-Fourier transform infrared (μFTIR) spectroscopy. This study quantified the mean number concentration of total MPs as approximately 6.0 #/m³. We observed that MP abundance varied seasonally, with higher levels in the warm season than in the cold. A similar trend was noted for polymer types. Fragment-like MPs were the predominant shape, mainly found in polystyrene (PS), polyethylene (PE), and polypropylene (PP), while fibrous MPs, detected mostly as polyethylene terephthalate (PET) and polyamide (PA), were primarily observed at sizes greater than 300 μm. Both fiber and fragment-like MPs were positively associated with particle mass concentration, temperature, ultraviolet (UV) index, and wind speed, but negatively correlated with relative humidity and rainfall. Fibrous MPs were more affected by environmental factors than fragment-like MPs. Meteorological changes significantly influenced suspended MPs more than human activity within the city.
    日期: 2024-12-01
    關聯: Environmental Pollution. 2024 Dec 01;362:Article number 124994.
    Link to: http://dx.doi.org/10.1016/j.envpol.2024.124994
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0269-7491&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:001324342100001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85204489188
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