武汉市大气细颗粒物源解析综述

Analysis of Atmospheric Fine Particulate Matter Sources in Wuhan:a Review

近年来武汉大气颗粒物污染得到了持续改善,但PM2.5仍然是影响空气质量的主要污染物。该文总结了2012-2022年公开发表的武汉市大气细颗粒物源解析研究,综述了武汉市PM_(2.5)源解析的研究现状,梳理和总结了PM_(2.5)来源的时空分布特征。PM_(2.5)源解析结果表明,近年来二次源和生物质燃烧源的相对贡献有所增加,扬尘源的相对贡献有较大的减少,交通源总体趋于稳定。该文进一步指出未来武汉大气颗粒物源解析研究的方向,是多种模型和方法的相互验证、二次气溶胶的溯源以及重霾污染过程中的实时快速源解析。

In recent years,pollution of atmospheric particulate matter has been ameliorated continuously in Wuhan,but PM2.5 is still the main pollutant affecting the ambient air quality.This paper reviewed the research on the source apportionment of fine particulate matter in Wuhan during the period of 2012-2022 with respect to the status quo of the research of PM_(2.5) sources in Wuhan,and the spatial and temporal distribution characteristics of PM_(2.5) sources were sorted out and summarized.The source apportionment of PM_(2.5) revealed that the relative contribution of secondary source and biomass combustion source increased,while the relative contribution of dust source declined a lot in recent years,with the traffic source remained stabilized in general.Furthermore,in future the research direction of the source apportionment atmospheric particulate matter in Wuhan should focus on the mutual verification of multiple models and methods,the traceability of secondary aerosols,and the real-time rapid source analysis in the process of heavy smog pollution.