U.S. EPA Proposes Revisions to Ozone NAAQS
Posted: January 18th, 2010
In May 2008, states, environmental groups, and industry groups filed petitions with the D.C. Circuit Court of Appeals (Court) for review of the 2008 ozone standards. In March 2009, the Court granted a U.S. EPA request to stay the litigation […]
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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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What were the “Hot” Topics at the December 1 – 2, 2009 U.S. EPA/AWMA Information Exchange?
Posted: December 6th, 2009
ALL4 Senior Consultant Roy Rakiewicz attended the annual Air and Waste Management Association (AWMA)/ U.S. EPA Information Exchange that was held at Research Triangle Park, NC on December 1 and 2, 2009. The primary topics that were addressed during this […]
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U.S. EPA Proposes 1-hour National Ambient Air Quality Standard for Sulfur Dioxide
Posted: November 27th, 2009
On November 17, 2009, U.S EPA announced that they were proposing to establish a new 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) between 50 and 100 parts per billion by volume (ppbv) (i.e., approximately 130 to 260 […]
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PADEP Provides Technical Guidance on Waste Derived Liquid Fuels
Posted: November 16th, 2009
The Pennsylvania Department of Environmental Protection (PADEP) has finalized revisions to Technical Guidance Document No. 275-2101-009 regarding Waste Derived Liquid Fuels (WDLFs). The requirements in the technical guidance document are for guidance purposes only and are not meant to be […]
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U.S. EPA Establishes Startup/Shutdown Standards Under Subpart VVVVVV
Posted: November 10th, 2009
On October 29, U.S. EPA issued National Emission Standards for Hazardous Air Pollutants (NESHAP) for nine (9) area source categories in the chemical manufacturing sector as a single, combined subpart under 40 CFR Part 63, Subpart VVVVVV. The specific categories […]
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Should You Throw Your SSM Plan Out the Window Now That the DC Circuit Has Issued Their Mandate Vacat
Posted: November 4th, 2009
On October 16, 2009, the United States Court of Appeals for the District of Columbia Circuit (the Court) issued its mandate vacating the Startup, Shutdown, and Malfunction (SSM) exemption provisions of 40 CFR §§63.6(f)(1) and (h)(1). The Court issued its original […]
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U.S. EPA’s Final PM2.5 Designations
Posted: October 6th, 2009
U.S. EPA has promulgated the final nonattainment area designations for the 24-hour National Ambient Air Quality Standard (NAAQS) for particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5). PM2.5 is a regulated air pollutant with annual and […]
Read articleU.S. EPA Proposes NESHAP for Chemical Preparations Industry Area Sources
Posted: August 30th, 2009
On August 5, 2009, U.S. EPA published a proposal for the control of hazardous air pollutants (HAPs) from the chemical preparations industry area source category. This source category consists of industrial operations that mix, mill, blend, and/or extrude chemicals that […]
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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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