Influence of Power Generation Mix on Photochemical Ozone Concentration in Osaka Area

DOI

Bibliographic Information

Other Title
  • 電源構成の変化が大阪地域の光化学オゾン濃度に及ぼす影響

Abstract

<p>　　　After a big earthquake and subsequent accidents at Fukushima Dai-ichi Nuclear Power Plant (NPP) in March 2011, the NPPs in Japan have been shutdown, and the power shortage has been compensated by Thermal Power Plants (TPPs). Such changes in the power generation mix would have affected air quality in the Osaka area. In this study, we estimated the change in the emission amount of pollutants from TPPs and evaluated the influence on photochemical ozone under typical midsummer conditions using a numerical model. By the shutdown of NPPs, NOx emitted from general electricity utilities became about two times larger in Kansai, Hokuriku and Shikoku areas. By the TPPs substitution photochemical ozone decreased in the middle of the Osaka plain and increased in the surrounding areas. This tendency is consistent with the photochemical regime we previously estimated. Observation showed similar result; however, the changes in ozone concentration were much larger than our model results possibly due to VOC reduction from other sources. The increase of TPP emission does not influence strongly on the photochemical ozone in the objective area. It is much more important to discuss it from the viewpoint of global warming.</p>

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Keywords

Details 詳細情報について

  • CRID
    1390283659845991424
  • NII Article ID
    130007790301
  • DOI
    10.11395/jjsem.19.317
  • ISSN
    18844219
    13464930
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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