AUTHOR=Nakata Makiko , Sano Itaru , Mukai Sonoyo 

TITLE=Air pollutants in Osaka (Japan)

JOURNAL=Frontiers in Environmental Science

VOLUME=3

YEAR=2015

URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2015.00018

DOI=10.3389/fenvs.2015.00018

ISSN=2296-665X

ABSTRACT=<p>Increasing emission of anthropogenic particles is causing heavy air pollution. This work intends to analyze the air pollution in Osaka. PM is usually used as an indicator of air quality, because high PM concentrations can degrade air quality. Osaka is the second largest metropolitan region of Japan and its air is significantly polluted by anthropogenic particles emitted from vehicles and industry. In this study, seasonal variation of air pollutants in Osaka is investigated using ground observations such as PM sampling, AERONET photometry, and numerical model simulation. Results indicate that PM concentrations are high during spring and summer because of yellow dust events and photochemical reactions, respectively. In addition, the impact of anthropogenic PM around Osaka is significant in summer.</p>