Abstract
United States Environmental Protection Agency (USEPA) developed opacity standards for sources of visible emissions to protect the visual quality of ambient air. Method 9 is USEPA’s standard method to quantify plume opacity by visual observations from qualified human observers during daytime. These observers are required to be certified twice a year at a “smoke school”. “Smoke school” is more formally referred to as “Visible Emissions Training”, which generally consists of a lecture session and a certification event where observers are field tested for their ability to determine the opacity of plumes. However, the use of observations by humans to quantify plume opacity introduces subjectivity, and is expensive due to semi-annual certification requirements of the observers. In addition, sources may emit plumes during nighttime that also need to be monitored to determine compliance for those sources. Digital Optical Method (DOM) was developed to quantify plume opacity from digital photographs for both daytime and nighttime conditions. Daytime field campaigns were completed during smoke schools with the Illinois Environmental Protection Agency (IEPA) and with industrial stacks during daytime. Field campaigns were also completed during nighttime with a smoke generator operated by IEPA. The field tests demonstrated that DOM has advantages when compared to Method 9 by its lower cost, improved objectivity, and availability of photographs of the visible emissions and their environments. Errors in results from DOM when compared to a reference in–stack transmissometer or a Method 9 observer are within USEPA’s error limits for Method 9. These encouraging results indicate that DOM has the potential to serve as an alternative method to Method 9 to determine the opacity of plumes for regulatory compliance of stationary sources.
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References
Air Pollution Control Division (2001) Protocol for Nighttime Opacity Observations Colorado Operating Permit.
Conner WD, McElhoe HB (1982) Comparison of opacity measurements by trained observer and in-stack transmissometer. J Air Pollut Control Assoc 32: 943–946.
Du K (2007) Optical Remote Sensing of Airborne Particulate Matter to Quantify Opacity and Mass Emissions. Dissertation, University of Illinois at Urbana-Champaign, Urbana.
Du K, Rood MJ, Kim BJ et al. (2006) Field Testing of the Digital Opacity Method to Quantify Plume Opacity during Nighttime, 99th Annual Meeting of the Air & Waste Management Association, New Orleans, LA, 10.
Du K, Rood MJ, Kim BJ et al. (2007a) Quantification of plume opacity by digital photography. Environ Sci Technol 41: 928–935.
Du K, Rood MJ, Kim BJ et al. (2007b) Field evaluation of digital optical method to quantify the visual opacity of plumes. J Air Waste Manage Assoc 57: 836–844.
Haythorne RE, Rankin JW (1974) Visual plume readings – too crude for clean air laws. Nat Resour Lawyer 7: 457–477.
Intergovernmental Wood Smoke Committee (2002) Wood smoke program review for city of fort collins, Natural Resources Department.
McFarland MJ, Rasmussen SL, Stone DA et al. (2006) Field Validation of Visible Opacity Photographic Systems, the 99th Annual Meeting of the Air & Waste Management Association, New Orleans, LA, pp. 18.
McFarland MJ, Terry SH, Calidonna MJ et al. (2004) Measuring visual opacity using digital imaging technology. J Air Waste Manage Assoc 54: 296–306.
McFarland MJ, Terry SH, Stone DA et al. (2003) Evaluation of the digital opacity compliance system in high mountain desert environments. J Air Waste Manage Assoc 53: 724–730.
OAQPS (2006) New Digital Camera Approach for Opacity. Memorandum by Stephen D Page from OAQPS of USEPA.
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© 2009 Springer Science+Business Media B.V.
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Du, K., Rood, M.J., Kim, B.J., Kemme, M.R., Franek, B., Mattison, K. (2009). Digital Photographic Technique to Quantify Plume Opacity During Daytime and Nighttime. In: Kim, Y.J., Platt, U., Gu, M.B., Iwahashi, H. (eds) Atmospheric and Biological Environmental Monitoring. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9674-7_3
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DOI: https://doi.org/10.1007/978-1-4020-9674-7_3
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