Articles | Volume 20, issue 17
Atmos. Chem. Phys., 20, 10311–10329, 2020
https://doi.org/10.5194/acp-20-10311-2020
Atmos. Chem. Phys., 20, 10311–10329, 2020
https://doi.org/10.5194/acp-20-10311-2020

Research article 04 Sep 2020

Research article | 04 Sep 2020

Comprehensive analyses of source sensitivities and apportionments of PM2.5 and ozone over Japan via multiple numerical techniques

Satoru Chatani et al.

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Subject: Aerosols | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Burr, M. J., and Zhang, Y.: Source apportionment of fine particulate matter over the Eastern U.S. Part II: source apportionment simulations using CAMx/PSAT and comparisons with CMAQ source sensitivity simulations, Atmos. Pollut. Res., 2, 318–336, https://doi.org/10.5094/apr.2011.037, 2011. 
Byun, D., and Schere, K. L.: Review of the governing equations, computational algorithms, and other components of the models-3 Community Multiscale Air Quality (CMAQ) modeling system, Appl. Mech. Rev., 59, 51–77, https://doi.org/10.1115/1.2128636, 2006. 
Chatani, S. and Sudo, K.: Influences of the variation in inflow to East Asia on surface ozone over Japan during 1996–2005, Atmos. Chem. Phys., 11, 8745–8758, https://doi.org/10.5194/acp-11-8745-2011, 2011. 
Chatani, S., Morikawa, T., Nakatsuka, S., and Matsunaga, S.: Sensitivity analyses of domestic emission sources and transboundary transport on PM2.5 concentrations in three major Japanese urban areas for the year 2005 with the three-dimensional air quality simulation, J. Jpn. Soc. Atmos. Environ., 46, 101–110, https://doi.org/10.11298/taiki.46.101, 2011. 
Chatani, S., Okumura, M., Shimadera, H., Yamaji, K., Kitayama, K., and Matsunaga, S.: Effects of a detailed vegetation database on simulated meteorological fields, biogenic VOC emissions, and ambient pollutant concentrations over Japan, Atmosphere, 9, 179, https://doi.org/10.3390/atmos9050179, 2018a. 
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Short summary
Source sensitivities and apportionments of PM2.5 and ozone concentrations over Japan for 2016 were evaluated using multiple numerical techniques including BFM, HDDM, and ISAM, embedded in regional chemical transport models. Influences of stringent emission controls recently implemented in Asian countries were reflected. Differences between sensitivities and apportionments greatly helped distinguish various direct and indirect effects of emission sources on PM2.5 and ozone concentrations.
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