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Atmosphere 2018, 9(5), 179; https://doi.org/10.3390/atmos9050179

Effects of a Detailed Vegetation Database on Simulated Meteorological Fields, Biogenic VOC Emissions, and Ambient Pollutant Concentrations over Japan

1
National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan
2
Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, Habikino, Osaka 583-0862, Japan
3
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
4
Graduate School of Maritime Sciences, Kobe University, Kobe, Hyogo 658-0022, Japan
5
Taikisha Ltd., Aikawa, Aikou, Kanagawa 243-0308, Japan
*
Author to whom correspondence should be addressed.
Received: 30 March 2018 / Revised: 29 April 2018 / Accepted: 7 May 2018 / Published: 9 May 2018
(This article belongs to the Special Issue Regional Scale Air Quality Modelling)
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Abstract

Regional air quality simulations provide powerful tools for clarifying mechanisms of heavy air pollution and for considering effective strategies for better air quality. This study introduces a new vegetation database for Japan, which could provide inputs for regional meteorological modeling, and estimating emissions of biogenic volatile organic compounds (BVOCs), both of which are essential components of simulations. It includes newly developed emission factors (EFs) of BVOCs for major vegetation types in Japan, based on existing literature. The new database contributes to improved modeling of meteorological fields due to its updated representation of larger urban areas. Using the new vegetation and EF database, lower isoprene and monoterpene, and higher sesquiterpene emissions are estimated for Japan than those derived from previously available default datasets. These slightly reduce the overestimation of ozone concentrations obtained by a regional chemical transport model, whereas their effects on underestimated secondary organic aerosol (SOA) concentrations are marginal. Further work is necessary, not only on BVOC emissions but also the other simulation components, to further improve the modeling of ozone and SOA concentrations in Japan. View Full-Text
Keywords: biogenic volatile organic compounds; regional air quality simulation; land use; vegetation; emission inventory biogenic volatile organic compounds; regional air quality simulation; land use; vegetation; emission inventory
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Chatani, S.; Okumura, M.; Shimadera, H.; Yamaji, K.; Kitayama, K.; Matsunaga, S.N. Effects of a Detailed Vegetation Database on Simulated Meteorological Fields, Biogenic VOC Emissions, and Ambient Pollutant Concentrations over Japan. Atmosphere 2018, 9, 179.

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