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Single-source impact analysis using three-dimensional air quality models.

Publication ,  Journal Article
Bergin, MS; Russell, AG; Odman, MT; Cohan, DS; Chameides, WL
Published in: Journal of the Air & Waste Management Association (1995)
October 2008

Isolating the effects of an individual emissions source on secondary air pollutants such as ozone and some components of particulate matter must incorporate complex nonlinear processes, be sensitive to small emissions perturbations, and account for impacts that may occur hundreds of kilometers away. The ability to evaluate these impacts is becoming increasingly important for efficient air quality management. Here, as part of a recent compliance enforcement action for a violation of the Clean Air Act and as an evaluation of ozone response to single-source emissions plumes, two three-dimensional regional photochemical air quality models are used to assess the impact on ozone from approximately 2000 to 3000 excess t/month of nitrogen oxides emitted from a single power plant in Ohio. Periods in May, July, and August are evaluated. Two sensitivity methods are applied: the "brute-force" (B-F) method and the decoupled direct method (DDM). Using DDM, maximum 1-hr averaged ozone concentrations are found to increase by up to 1.8, 1.3, and 2.2 ppbv during May, July, and August episodes, respectively, and concentration increases greater than 0.5 ppbv occur in Ohio, Pennsylvania, Maryland, New York, West Virginia, Virginia, and North and South Carolina. B-F results for the August episode show a maximum 1-hr averaged ozone concentration increase of 2.3 ppbv. Significant localized decreases are also simulated, with a maximum of 3.6 ppbv in Ohio during the August episode and decreases of 0.50 ppbv and greater in Ohio, Pennsylvania, Maryland, West Virginia, and Virginia. Maximum increases are compared with maximum decreases for the August period using second-order DDM and are found, in aggregate, to be greater in magnitude by 42%. When evaluated during hours when ozone concentrations exceed 0.060 ppm, the maximum increases in ozone are higher than decreases by 82%. The spatial extent of ozone increase in both cases is about triple that of reduction.

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Published In

Journal of the Air & Waste Management Association (1995)

DOI

EISSN

2162-2906

ISSN

1096-2247

Publication Date

October 2008

Volume

58

Issue

10

Start / End Page

1351 / 1359

Related Subject Headings

  • Power Plants
  • Ozone
  • Oxidants, Photochemical
  • New England
  • Models, Statistical
  • Meteorology & Atmospheric Sciences
  • Environmental Monitoring
  • Algorithms
  • Air Pollution
  • Air Pollutants, Occupational
 

Citation

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Bergin, M. S., Russell, A. G., Odman, M. T., Cohan, D. S., & Chameides, W. L. (2008). Single-source impact analysis using three-dimensional air quality models. Journal of the Air & Waste Management Association (1995), 58(10), 1351–1359. https://doi.org/10.3155/1047-3289.58.10.1351
Bergin, Michelle S., Armistead G. Russell, Mehmet T. Odman, Daniel S. Cohan, and William L. Chameides. “Single-source impact analysis using three-dimensional air quality models.Journal of the Air & Waste Management Association (1995) 58, no. 10 (October 2008): 1351–59. https://doi.org/10.3155/1047-3289.58.10.1351.
Bergin MS, Russell AG, Odman MT, Cohan DS, Chameides WL. Single-source impact analysis using three-dimensional air quality models. Journal of the Air & Waste Management Association (1995). 2008 Oct;58(10):1351–9.
Bergin, Michelle S., et al. “Single-source impact analysis using three-dimensional air quality models.Journal of the Air & Waste Management Association (1995), vol. 58, no. 10, Oct. 2008, pp. 1351–59. Epmc, doi:10.3155/1047-3289.58.10.1351.
Bergin MS, Russell AG, Odman MT, Cohan DS, Chameides WL. Single-source impact analysis using three-dimensional air quality models. Journal of the Air & Waste Management Association (1995). 2008 Oct;58(10):1351–1359.

Published In

Journal of the Air & Waste Management Association (1995)

DOI

EISSN

2162-2906

ISSN

1096-2247

Publication Date

October 2008

Volume

58

Issue

10

Start / End Page

1351 / 1359

Related Subject Headings

  • Power Plants
  • Ozone
  • Oxidants, Photochemical
  • New England
  • Models, Statistical
  • Meteorology & Atmospheric Sciences
  • Environmental Monitoring
  • Algorithms
  • Air Pollution
  • Air Pollutants, Occupational