10 Steps to Preparing a Successful Air Construction Permit Application for New Equipment
Posted: February 14th, 2023
Are you planning on building a new greenfield facility that will have air emissions units or expanding your current facility with additional air emissions units? If so, there is a good chance that you will need to obtain an air […]
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LMAPCD is Proposing to Change Several Air Regulations
Posted: February 8th, 2023
Update (3/1/2023): The Public Comment Period has been extended to March 15, 2023. Louisville Metro Air Pollution Control District (District) is proposing amendments to the following District regulations: 02 – Definitions, 11 – Control of Open Burning, 13 – Control […]
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Incorporation of Monte Carlo Statistical Simulation Techniques in an Air Dispersion Modeling Analysis
Posted: February 6th, 2023
This article appears in the February 2023 issue of EM Magazine, a copyrighted publication of the Air & Waste Management Association (A&WMA; www.awma.org). Read on A&WMA
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Redesignation of the Atlanta Nonattainment Area to Attainment for NAAQS
Posted: February 2nd, 2023
On August 3, 2018, the United States Environmental Protection Agency (U.S. EPA) classified Atlanta as a marginal nonattainment area according to the 2015 8-hour ozone National Ambient Air Quality Standard (NAAQS). Nonattainment areas are designated when measured concentrations of a […]
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PFAS in 2023
Posted: January 26th, 2023
Looking forward to 2023, we expect PFAS will continue to gain momentum as an emerging contaminant and will be a top priority for regulators and the regulated community alike. Not only are there still items from the U.S. EPA’s “PFAS […]
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New Source Review (NSR) – What to Expect in 2023
Posted: January 26th, 2023
If you have not already noticed, NSR is a fairly common air quality topic in ALL4’s annual Look Ahead series of articles and in our 4 The Record blog posts, and with good reason. The NSR air permit program, consisting […]
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ALL4’s Texas 2023 Look Ahead
Posted: January 25th, 2023
The new year is upon us, and ALL4 is looking forward to the changes and challenges it will bring. Whether the concerns are related to air, water, waste, or health and safety, we are here to assist and find solutions […]
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Looking Ahead to Maximum Achievable Control Technology (MACT) Rules Updates
Posted: January 19th, 2023
The U.S. Environmental Protection Agency (U.S. EPA) is currently working on several rulemakings under 40 CFR Part 63, National Emission Standards for Hazardous Air Pollutants (NESHAP). For many of these rulemakings, U.S. EPA is under a court-ordered deadline to finalize […]
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Posted: January 19th, 2023
PFAS (per- and polyfluoroalkyl substances) are a group of synthetic chemicals that are resistant to heat, water, and oil. They are used in a wide range of products, including aqueous film-forming foams used for firefighting, nonstick cookware, lubricants, food packaging, […]
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PM2.5 Annual NAAQS Proposed to be Lowered
Posted: January 11th, 2023
After completing the White House Office of Management and Budget (OMB) review on December 27, 2022, the much anticipated proposal to lower the annual particulate matter of less than 2.5 microns (PM2.5) National Ambient Air Quality Standard (NAAQS) was officially […]
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