WIT Press


Prediction Method Of Annual Averaged Atmospheric Pollutant Concentration Using A Numerical Simulation

Price

Free (open access)

Volume

74

Pages

10

Published

2004

Size

1,495 kb

Paper DOI

10.2495/AIR040071

Copyright

WIT Press

Author(s)

A. Kondo, N. Morita, A. Kaga & Y. Inoue

Abstract

In order to obtain the annual averaged atmospheric pollution concentration by a numerical model, we classified the meteorological data for a year into 12 climate types, which occupy 76% of all data except for a rainy day. We then predicted the wind field distribution and the atmospheric pollutant concentration for a day for each type. The target region is Osaka, Japan and the size of the region is 160km x 370km. The annual averaged atmospheric pollutant concentration was calculated from the weight average of the frequency of each climate type. The correlation coefficient of the calculation and the observation for nitrogen dioxide, sulphur dioxide, and ozone became 0.63, 0.43, and 0.18, respectively. We think that there are some issues about the estimation of the amounts of HC and NOx

Keywords