Cite this article: Takami, A., Miyoshi, T., Irei, S., Yoshino, A., Sato, K., Shimizu, A., Hayashi, M., Hara, K., Kaneyasu, N. and Hatakeyama, S. (2016). Analysis of Organic Aerosol in Fukuoka, Japan Using a PMF Method.
Aerosol Air Qual. Res.
16: 314-322. https://doi.org/10.4209/aaqr.2015.03.0145
The PMF method is applied to data obtained by Q-AMS in Fukuoka.
LV-OOA was dominant during the trans-boundary air pollution period.
Trans-boundary air pollutions can be distinguished from local ones using LV-OOA.
Aerosol chemical species were measured using an Aerodyne quadrupole aerosol mass spectrometer (Q-AMS) in spring 2010, in Fukuoka. The main species were sulfate and organics. Organic data were analyzed using the Positive Matrix Factorization (PMF) method. Two distinct periods (Period 1 and 2) were selected. Period 1 (from March 19 at 19:50 to March 20 at 10:00) was influenced by trans-boundary air pollution. Low-volatile, oxygenated organic aerosols (LV-OOA) were dominant and the hydrocarbon-like organic aerosols (HOA) fraction was as low as 15%. About one-fourth (26%) of the observation period in Fukuoka was influenced by trans-boundary air pollution. In Period 2 (from March 22 at 00:00 to March 22 at 23:50), both local emissions and trans-boundary air pollutants influenced Fukuoka air quality. The HOA fraction was relatively high, although the LV-OOA fraction was about one-third of OA. The trans-boundary air pollution was analyzed using the oxidation state of organic aerosols (OA), obtained by the PMF method.