Abstract:Abstract. To investigate the aging impact on sources, volatility, and viscosity of organic aerosols (OA) in the Chinese outflows, a high-resolution time-of-flight aerosol mass spectrometer (HR-AMS) coupled with a thermodenuder (TD) was deployed in the spring of 2018 in Dongying, which is a regional receptor site of metropolitan emissions in North China Plain (NCP). The average mass concentration of PM1 was 31.5 ± 22.7 μg m–3, which was mainly composed of nitrate (33 %) and OA (25 %). The source apportionment r… Show more
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