air quality rule Articles

  • New air quality rules challenge oil & natural gas industry

    EPA Administrator signed a suite of proposed new air regulations affecting both the Production/Processing and Transmission/Storage sectors of the oil and natural gas industry. The proposed rules mandate the use of emission controls as well as work practices through two different air regulatory programs – New Source Performance Standards (NSPS) and National Emissions Standards for Hazardous ...


    By Trinity Consultants

  • Case study - City of Montreal upgrade of Atwater and Des Baillets water treatment plants

    Sidestream Venturi Injection—Basin Nozzle Manifold Contacting System. Montreal, Quebec, Canada The Problem: In 2001, a water quality audit revealed that two of the largest drinking water plants in the City of Montreal were out of compliance with Quebec’s latest water quality rules. In response to the audit, the city upgraded the 1,400 MLD Atwater and the ...

  • Stakeholder Perspectives on the Clean Air Interstate and the Clean Air Mercury Rules

    In a follow-up to last month’s detailed overviews of the Clean Air Interstate Rule (CAIR) and the Clean Air Mercury Rule (CAMR), this month EM presents perspectives on the two rules from representatives of a range of stakeholders, including EPA, the states, the regulated community, and the environmental community. Last month, EM featured detailed overviews of two major air quality regulations ...

  • CSAPR - The new transport rule

    The core of the new Transport Rule was published in the Federal Register (76 FR 48208), approximately one year after the main rule proposal (75 FR 45210) (covered in the Fall 2010 Environmental Quarterly, Federal Transport Rule — the “New CAIR” Round 1). The new rule is known by two names. In press releases and on the EPA website, the rule is referred to as the Cross-State Air ...


    By Trinity Consultants

  • Return of the clean air interstate rule—The court does CAIR

    In summer 2008, the U.S. Court of Appeals for the D.C. Circuit issued a dramatic decision to vacate the Clean Air Interstate Rule (CAIR) in its entirety (North Carolina v. EPA, No. 05-1244, D.C. Cir., July 11, 2008). Following a petition for rehearing, it seems the previous vacatur was just a temporary detour, as the Court reinstated CAIR on December 22, 2008. The reinstatement appears to turn ...


    By Trinity Consultants

  • Managing air quality during regulatory changes

    This paper discusses the regulatory and technical issues associated with the revisions to the US EPA Guideline on Air Quality Models. The proposed guideline includes the models AERMOD, CALPUFF, and ISC-PRIME, all of which contain significant technical improvements over prior models. Differences in modelling requirements are appearing as regulatory agencies and industries use technically superior ...


    By Inderscience Publishers

  • Cement Manufacturing - Balancing Growth with Air Quality Requirements

    In most areas of the U.S., it appears that the recession is a bad memory and the signs of recovery are all around us. As described by the Portland Cement Association (PCA) on its website[1], “following the strongest cement consumption gains in seven (7) years in 2012, cement consumption growth will continue in 2013 with a 6.2% increase.” PCA continues to explain that “the ...


    By All4 Inc.

  • Confronting allegations of air quality non-compliance

    A facility with an air quality permit must comply with all the conditions of that permit and demonstrate its compliance on an on-going basis. Unfortunately, no matter how diligently the facility and corporate staff strives to assure continuous compliance, unexpected compliance challenges can occur. For example, new equipment fails the emissions guarantees provided by equipment vendors; new staff ...


    By Trinity Consultants

  • Air quality issues drive vehicle alternatives

    Vehicle exhaust systems remain a major source of air pollution in cities, despite the progress being made to reduce emissions from new models. Energy World takes a look at efficiency improvements, and the alternative fuel alternatives to petrol and diesel. In early April, the south of Britain woke to a hazy blanket of smog. A few weeks earlier, Paris had choked and spluttered through its own ...


    By Energy Institute (EI)

  • The Hidden Danger Of Air Quality in Indoor Firing Ranges

    Indoor gun ranges are popular with both professionals who use guns as a part of their job and hobbyists who just enjoy guns and shooting. ...


    By Camfil Ltd

  • Dazed and Confused: Alternative fuels and the CISWI definitions rule

    As discussed in ALL4’s December 2008 issue of 4 The Record, the use of alternative and non-traditional fuels for heat and power generation is on the rise, an increase that can be attributed to the price surge and volatility of traditional fossil fuels, as well as to a general desire to use more environmentally friendly materials to reduce greenhouse gas emissions. Alternative fuels have been ...


    By All4 Inc.

  • Federal transport rule — the “new cair” round 1

    On August 2, 2010, EPA proposed the long- awaited replacement for the Clean Air Interstate Rule (CAIR), which was rejected in 2008 by the D.C. Circuit Court of Appeals. Now called the Transport Rule (TR) by EPA, the new rule revises the CAIR approach to conform with the court ruling. In this first version (Round 1) of TR, overall emission budgets for NOX are similar to the initial period in CAIR; ...


    By Trinity Consultants

  • Preparing for EPA’s mandatory reporting of greenhouse gases rule

    Recent action by the US EPA to finalize the Mandatory Reporting of Greenhouse Gases (GHG) Rule means that environmental managers must now seriously examine whether they are fully prepared to address the imminent requirements. This article provides some assistance by summarizing key points regarding the final versus proposed rule, providing clarification on key questions that have arisen since the ...


    By Trinity Consultants

  • EPA mercury rules: Keeping the lights on while removing toxics from our air

    Next week the U.S. Environmental Protection Agency is expected to finalize new rules to reduce mercury and other toxic air emissions that will affect dozens of antiquated power plants currently operating without pollution controls. These rules have stirred debate in some circles as to whether retrofitting or retiring outdated plants will cause shortfalls in electricity capacity. How will new EPA ...

  • New American air quality standards focus on public health

    The US Environmental Protection Agency has significantly strengthened its national ambient air quality standards (NAAQS) for ground-level ozone, the primary component of smog. These changes will improve both public health protection and the protection of sensitive trees and plants. Based on its review of the air quality criteria for ozone (O3) and related photochemical oxidants and national ...

  • Staff spotlight: atmospheric chemist addresses California air quality issues

    With over a decade of experience addressing West Coast air quality issues, Dr. Charles Lee, Managing Consultant in Trinity’s Irvine, California office, is a valuable resource on air quality, greenhouse gas (GHG), and risk related issues such as permitting requirements, air quality monitoring, source testing, auditing, GHG verifications, and health risk assessments. Dr. Lee is particularly ...


    By Trinity Consultants

  • New EPA ruling deems greenhouse gases (GHGs) harmful to humans

    Greenhouse Gases (GHGs) will be categorized as a pollutant following the US Supreme Court's landmark notice approving the Environmental Protection Agency’s (EPA) ruling. The gases harm the environment as they have proved to increase heat trapping chemicals in the atmosphere. These chemicals, commonly taking the form of refrigerant gases, originate from a variety of systems, including ...


    By Verisae

  • Antibacterial Ingredients Ruled Unsafe. Hallelujah, the FDA has awoken!

    Today’s FDA ruling has got us booming! The debate between cleaning product makers, environmentalists and researchers has finally ended. The FDA ruled today that it is no longer considering antibacterial ingredients in soaps to be safe. This is a big deal for us as we have long discussed the harmful effects of killing “good” and “bad” bacteria as ...


    By Better Air LLC

  • EPA Reviews National Ambient Air Quality Standards for Ozone, and Other Recent CAA Developments

    EPA Reviews National Ambient Air Quality Standards For Ozone: On December 17, 2014, the U.S. Environmental Protection Agency (EPA) issued a proposed rule revising the air quality criteria for ozone (O3) and related photochemical oxidants and National Ambient Air Quality Standards (NAAQS) for O3. 79 Fed. Reg. 75234. EPA proposed to revise the primary standard to a level within ...


    By Bergeson & Campbell, P.C.

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