Industrial emissions of volatile organic compounds (VOCs) directly impact air quality downwind facilities and contribute to regional ozone secondary aerosol production. Positive matrix factorization (PMF) is often used apportion VOCs their respective sources using measurement data collected at fixed sites, for example monitoring stations. Here, we apply PMF analysis high time-resolution VOC bot...

Abstract. There are few long-term datasets of volatile organic compounds (VOCs) in the High Arctic. Furthermore, knowledge about their source regions remains lacking. To address this matter, we report a multiseason dataset highly time-resolved VOC measurements Arctic from April to October 2018. We have utilized combination measurement and modeling techniques characterize mixing ratios, temporal...

Emissions inventories significantly affect photochemical air quality model performance and the development of effective control strategies. However, there have been very few studies to evaluate their accuracy. Here, to evaluate a volatile organic compound (VOC) emissions inventory, we implemented a combined approach: comparing the ratios of carbon bond (CB)-IV VOC groups to nitrogen oxides (NOx...

Gas-phase concentrations of semi-volatile organic compounds (SVOCs) were calculated from gas/particle (G/P) partitioning theory using their measured particle-phase concentrations. The particle-phase data were obtained from an existing filter measurement campaign (27 January 2003-2 October 2005) as a part of the Denver Aerosol Sources and Health (DASH) study, including 970 observations of 71 SVO...

Abstract. Present methodologies for source apportionment assume fixed profiles. Since meteorology and human activity patterns change seasonally diurnally, application of techniques to shorter rather than longer time periods generates more representative mass spectra. Here, we present a new method conduct resolved by day using the underlying approach positive matrix factorization (PMF). We call ...

In recent years, several studies pointed out that anthropogenic emission sources in China which significantly contribute to the PM2.5 mass burden was an important cause of particulate pollution South Korea. However, most generally focused upon a single event. It is rare see comprehensive research captures those features prone interannual variations concerning transboundary pollutant contributio...