Journal
AEROSOL AND AIR QUALITY RESEARCH
Volume 16, Issue 2, Pages 314-322Publisher
TAIWAN ASSOC AEROSOL RES-TAAR
DOI: 10.4209/aaqr.2015.03.0145
Keywords
AMS; Organic; Sulfate; PMF; LV-OOA
Categories
Funding
- Environment Research and Technology Development Fund [2-1403, 5-1405, 5-1408, 5-1452]
- MEXT/JSPS [JSPS 24310024]
- MEXT SALSA
- JST-SIRCP
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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.
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