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Mathematical modeling of photochemical air pollution—III. Evaluation of the model

Reynolds, Steven D. and Liu, Mei-Kao and Hecht, Thomas A. and Roth, Philip M. and Seinfeld, John H. (1974) Mathematical modeling of photochemical air pollution—III. Evaluation of the model. Atmospheric Environment, 8 (6). pp. 563-596. ISSN 0004-6981. doi:10.1016/0004-6981(74)90143-7.

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The results of model evaluation exercises carried out for the urban airshed model developed in Parts I and II are presented. Concentrations of CO, hydrocarbons, NO, NO₂ and O₃ in the Los Angeles airshed were simulated for 6 days in the fall of 1969. Prior to carrying out these simulations, rate constants and stoichiometric coefficients used in the kinetic mechanism that has been incorporated in the airshed model were determined by separately validating the kinetic mechanism with laboratory smog chamber data for several hydrocarbon-NO_x, systems, including auto exhaust. In addition, to take into account the effect of local sources on concentrations measured at certain Los Angeles County Air Pollution Control District monitoring stations, a simple microscale model was developed. This model was used to predict the local effect of a heavily-travelled roadway on concentrations measured at a near-by monitoring station. The overall results exhibit good enough agreement with the monitoring data to suggest that in the future air pollution models based on representation of actual physical and chemical processes can be important components of abatement strategy planning.

Item Type:Article
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Seinfeld, John H.0000-0003-1344-4068
Additional Information:© 1974 Published by Elsevier Ltd. Received 8 June 1973, Revised 25 September 1973. This work was supported by the Environmental Protection Agency under Contracts CPA 70-148, 68-02-0339 and 68-02-0580 to Systems Applications, Inc. and by National Science Foundation Grant GK-35476 to the California Institute of Technology.
Funding AgencyGrant Number
Environmental Protection Agency (EPA)CPA 70-148
Environmental Protection Agency (EPA)68-02-0339
Environmental Protection Agency (EPA)68-02-0580
Issue or Number:6
Record Number:CaltechAUTHORS:20200428-102318746
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Official Citation:Steven D. Reynolds, Mei-Kao Liu, Thomas A. Hecht, Philip M. Roth, John H. Seinfeld, Mathematical modeling of photochemical air pollution—III. Evaluation of the model, Atmospheric Environment (1967), Volume 8, Issue 6, 1974, Pages 563-596, ISSN 0004-6981,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102871
Deposited By: Tony Diaz
Deposited On:28 Apr 2020 17:52
Last Modified:13 Apr 2023 18:38

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