Application of circuit model for Taipei City PM sub(10) simulation

• Published in: Atmospheric environment (1994) Vol. 33; no. 11; pp. 1789 - 1801
• Main Authors: Tsuang, B-J, Chao, C-P
• Format: Journal Article
• Language: English
• Published: 01.05.1999
• Subjects: Taiwan, Taipei
• ISSN: 1352-2310
• DOI: 10.1016/S1352-2310(98)00334-3

This study simulated PM sub(10) concentrations in Taipei City from September 1990 to June 1992, by using a circuit model developed by Tsuang and Chao. Simulation results demonstrated that the scheme performs better than a box model. The correlation coefficient between observed and predicted values was 0.61 with a standard error of 60 mu g m super(-3). The mean treatment score of successful predictions of high PM sub(10) concentrations (exceeding 125 mu g m super(-3)) was 58%. Fine particulates were found to be the major contributor toward hazardous air quality, under a stable, low wind speed and rainless atmosphere. In addition, the ill-mixed factor was found to be zero. The circuit model is close to a box model equation under an unstable atmosphere where the mixing height is much higher than the surface layer.