4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Proposed Revision to NO2 NAAQS Could Pose Problems Under PSD
Posted: August 23rd, 2009
In the July 2009 issue of 4 The Record, ALL4 included a summary of U.S. EPA’s announcement concerning a proposed new short-term (1-hour) National Ambient Air Quality Standard (NAAQS) for nitrogen dioxide (NO2). The proposed standard will likely range between 150 µg/m3 and 188 µg/m3. […]
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Update: PM2.5 New Source Review Regulations
Posted: August 18th, 2009
On May 16, 2008 U.S. EPA issued a final rule amending the New Source Review (NSR) regulations to add requirements related to particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5). ALL4’s PM2.5 Team published 4 The Record articles […]
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U.S. EPA Proposes Ozone Season Extension
Posted: August 14th, 2009
On July 16, 2009, U.S. EPA proposed revisions to its ambient ozone (O3) monitoring network design requirements. The revisions are in response to the amended primary and secondary National Ambient Air Quality Standards (NAAQS) for O3 that were promulgated on […]
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Pennsylvania Expected to Request “Case-by-Case” Boiler MACT Applications
Posted: August 2nd, 2009
In the August 29, 2009 Pennsylvania Bulletin, the Pennsylvania Department of Environmental Protection (PADEP) is expected to provide notice that “case-by case” Maximum Achievable Control Technology (MACT) applications will be required to be submitted by facilities that were subject to […]
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U.S. EPA Proposes a Short-Term NO2 NAAQS
Posted: July 19th, 2009
In the more than 200 air quality modeling analyses that ALL4 meteorologists have conducted, demonstrating compliance with the annual nitrogen dioxide (NO2) National Ambient Air Quality Standard (NAAQS) of 53 parts per billion (ppbv) has rarely been very difficult. The […]
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Court Rules on Phase 2 Ozone Rule
Posted: July 11th, 2009
On June 10, 2009, the U.S. Circuit Court of Appeals for the District of Columbia remanded (without vacatur) two areas of the Final Rule To Implement the 8-Hour Ozone National Ambient Air Quality Standard – Phase 2 (Phase 2 Rule) […]
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Do You Need A Quality Assurance Performance Plan (QAPP)?
Posted: July 3rd, 2009
The proposed Mandatory Greenhouse Gas (GHG) Reporting Rule (40 CFR Part 98) issued in March 2009 would require the economy-wide reporting of emissions data from facilities or sources that emit 25,000 metric tons or more per year of GHG emissions. […]
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McCarthy Confirmed by U.S. EPA
Posted: June 9th, 2009
On June 2, 2009, the U.S. Senate voted to confirm the nomination of Ms. Regina McCarthy for the position of Assistant Administrator for the Office of Air and Radiation at the U.S. Environmental Protection Agency (U.S. EPA). Ms. McCarthy is […]
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NJDEP Consideration of Health Risk from Internal Combustion Engines
Posted: June 4th, 2009
The New Jersey Department of Environmental Protection’s (NJDEP’s) Subchapter 17 rules require facilities to consider air toxics when installing or modifying sources of air emissions. NJDEP has alerted facilities through their quarterly Industrial Stakeholder Group meeting that existing internal combustion […]
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New U.S. EPA Administration Reconsidering NSR Rules
Posted: May 29th, 2009
On April 24, 2009, U.S. EPA sent out three separate letters in response to requests it had received to consider various apsects of the New Source Review (NSR) air permit rules that had been promulgated during the latter stages of the Bush […]
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