Seasonal Fluctuations in Air Pollution in Dazaifu, Japan, and Effect of Long-Range Transport from Mainland East Asia

Biological & Pharmaceutical Bulletin
Souleymane CoulibalyTetsushi Watanabe

Abstract

To clarify the seasonal fluctuations in air pollution and the effect of long-range transport, we collected airborne particles (n=118) at Dazaifu in Fukuoka, Japan, from June 2012 to May 2013 and measured Pb and SO4(2-), which are indicators of the long-range transport of anthropogenic air pollutants, as well as their mutagenicity, and other factors. The levels of airborne particles, Pb, and SO4(2-) were very high on March 4, 8, 9, and 19, and May 13, 21, and 22, 2013. The backward trajectories indicated that air masses had arrived from the Gobi Desert and northern China on those days. The mutagenicity of airborne particles was examined using the Ames test on Salmonella typhimurium YG1024. Highly mutagenic airborne particles were mostly collected in winter, and most of them showed high activity both with and without S9 mix. High levels of polycyclic aromatic hydrocarbons (PAHs) were found in many samples that showed high mutagenicity. For the samples collected on January 30, February 21, and March 4, the levels of Pb, SO4(2-), PAHs, and mutagenicity were high, and the backward trajectories indicated that air masses present on those days had passed through northern or central China. The Japan Meteorological Agency registered Asia...Continue Reading

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Citations

Jan 12, 2016·International Journal of Environmental Research and Public Health·Thao Thi Thu NguyenHiroyuki Nakamura
Apr 17, 2017·Environmental Research·Julio DíazRicardo Machado Trigo
Feb 20, 2020·International Journal of Environmental Research and Public Health·Takashi KuboYuji Takao
Jan 1, 2015·Genes and Environment : the Official Journal of the Japanese Environmental Mutagen Society·Souleymane CoulibalyTetsushi Watanabe
Jun 14, 2017·Journal of Preventive Medicine and Public Health = Yebang Ŭihakhoe Chi·Akiko KamimuraAlla Chernenko
Jul 3, 2021·International Journal of Environmental Research and Public Health·Masanari WatanabeHiroyuki Sano

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