New Meteorological Data Requirements for Air Quality Modeling
Posted: January 11th, 2012
Have you ever performed air quality modeling to support Prevention of Significant Deterioration (PSD) permitting projects or air toxic modeling assessments? Does your company have any projects in the planning stages that could trigger PSD applicability? If so, you need […]
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FINALLY!! Guidance and Updated Programs Catch Up With New 1-Hour NAAQS
Posted: January 9th, 2012
Introduction There has recently been a flurry of activity on U.S. EPA’s Support Center for Regulatory Atmospheric Modeling (SCRAM) website. U.S. EPA’s Air Quality Modeling Group (AQMG) has been busy updating the AERMOD air dispersion model and its supporting pre-processors to […]
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Caught in the Crossfire
Posted: January 9th, 2012
Eerily similar to the political and ideological extremism that has overtaken both houses of Congress, the various factions that typically provide “public” comments on proposed new and revised air quality regulations are generally split between industry trade or lobbying organizations […]
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Oil and Gas System Greenhouse Gas Reporting—Where Do You Stand?
Posted: December 11th, 2011
U.S. EPA’s Mandatory Reporting of Greenhouse Gases Rule, codified at 40 CFR Part 98 (the GHG Reporting Rule), requires certain facilities to report annual emissions of greenhouse gases (GHG) including, as applicable, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), […]
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More Thoughts on SO2 NAAQS
Posted: November 20th, 2011
The public comment period for U.S. EPA’s draft dispersion modeling guidance for the 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) is open until December 2, 2011. Since the guidance will lead to a significant and complicated undertaking […]
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Source Specific Ambient SO2 Monitoring vs. Air Quality Modeling for 1-Hour SO2 NAAQS Designations
Posted: March 26th, 2011
As part of the preamble of the new 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS), U.S. EPA outlined new NAAQS implementation procedures that will require certain facilities to be evaluated using refined air dispersion modeling with U.S. […]
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U.S. EPA Says No to CO NAAQS Revision
Posted: February 18th, 2011
U.S. EPA has proposed to retain the National Ambient Air Quality Standards (NAAQS) for carbon monoxide (CO) after a review of the most current scientific data for…
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U.S. EPA Proposes Revisions to Ambient Lead Monitoring Network
Posted: January 4th, 2010
On October 15, 2008, U.S. EPA revised the National Ambient Air Quality Standards (NAAQS) for lead from 1.5 micrograms per cubic meter (µg/m3) to 0.15 µg/m3, measured as total suspended particles (TSP). In January 2009, U.S. EPA received a petition […]
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UPDATE: Revision 8 of the Pennsylvania Continuous Source Monitoring Manual
Posted: September 3rd, 2008
Comments are being accepted until October 13, 2008 on the DRAFT Technical Guidance concerning the “Applicability Determination and Implementation Procedures for Continuous Source Monitoring Manual Revision 8” published in the Pennsylvania Bulletin on September 13, 2008. The objective of the DRAFT […]
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Update: PADEP Continuous Source Monitoring Manual Revision 8
Posted: April 15th, 2008
In a March 27, 2008 presentation to the Air Quality Technical Advisory Committee (AQTAC), the Pennsylvania Department of Environmental Protection (PADEP) reported that they expect to publish a notification in the Pennsylvania Bulletin that the new Continuous Emission Monitoring Data Processing […]
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