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Development and analysis of air quality modeling simulations for hazardous air pollutants

Luecken, D.J. / Hutzell, W.T. / Gipson, G.L.

AbstractThe concentrations of five hazardous air pollutants were simulated using the community multi-scale air quality (CMAQ) modeling system. Annual simulations were performed over the continental United States for the entire year of 2001 to support human exposure estimates. Results are shown for formaldehyde, acetaldehyde, benzene, 1,3-butadiene and acrolein. Photochemical production in the atmosphere is predicted to dominate ambient formaldehyde and acetaldehyde concentrations, and to account for a significant fraction of ambient acrolein concentrations. Spatial and temporal variations are large throughout the domain over the year. Predicted concentrations are compared with observations for formaldehyde, acetaldehyde, benzene and 1,3-butadiene. Although the modeling results indicate an overall slight tendency towards underprediction, they reproduce episodic and seasonal behavior of pollutant concentrations at many monitors with good skill.

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Development and analysis of air quality modeling simulations for hazardous air pollutants

Luecken, D.J. / Hutzell, W.T. / Gipson, G.L.

AbstractThe concentrations of five hazardous air pollutants were simulated using the community multi-scale air quality (CMAQ) modeling system. Annual simulations were performed over the continental United States for the entire year of 2001 to support human exposure estimates. Results are shown for formaldehyde, acetaldehyde, benzene, 1,3-butadiene and acrolein. Photochemical production in the atmosphere is predicted to dominate ambient formaldehyde and acetaldehyde concentrations, and to account for a significant fraction of ambient acrolein concentrations. Spatial and temporal variations are large throughout the domain over the year. Predicted concentrations are compared with observations for formaldehyde, acetaldehyde, benzene and 1,3-butadiene. Although the modeling results indicate an overall slight tendency towards underprediction, they reproduce episodic and seasonal behavior of pollutant concentrations at many monitors with good skill.

Development and analysis of air quality modeling simulations for hazardous air pollutants

Luecken, D.J. / Hutzell, W.T. / Gipson, G.L.

AbstractThe concentrations of five hazardous air pollutants were simulated using the community multi-scale air quality (CMAQ) modeling system. Annual simulations were performed over the continental United States for the entire year of 2001 to support human exposure estimates. Results are shown for formaldehyde, acetaldehyde, benzene, 1,3-butadiene and acrolein. Photochemical production in the atmosphere is predicted to dominate ambient formaldehyde and acetaldehyde concentrations, and to account for a significant fraction of ambient acrolein concentrations. Spatial and temporal variations are large throughout the domain over the year. Predicted concentrations are compared with observations for formaldehyde, acetaldehyde, benzene and 1,3-butadiene. Although the modeling results indicate an overall slight tendency towards underprediction, they reproduce episodic and seasonal behavior of pollutant concentrations at many monitors with good skill.

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Title:

Development and analysis of air quality modeling simulations for hazardous air pollutants

Contributors:

Luecken, D.J. (author) / Hutzell, W.T. (author) / Gipson, G.L. (author)

Published in:

Atmospheric Environment ; 40 ; 5087-5096

Publication date:

2005-12-22

Size:

10 pages

ISSN:

DOI:

https://doi.org/10.1016/j.atmosenv.2005.12.044

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Air toxics , HAPs , Benzene , Formaldehyde , Acrolein

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