epa proposed ozone standard Articles

  • EPA’s proposal to revise the air quality standards for ground-level ozone

    OnJune 20, 2007, the U.S. Environmental Protection Agency (EPA) proposed to strengthen the nation’s air quality standards for ground-level ozone. Recent scientific literature has improved our understanding of the adverse effects of ozone on both human health and the environment. This article summarizes the latest scientific knowledge on the effects of ozone and the key aspects of EPA’s proposal ...

  • EPA’S 2010 proposed ozone NAAQS, presented at EUEC 2010

    Ozone NAAQS Overview Background –Why are revisions already being proposed to the March 2008 Ozone NAAQS? What are the proposed new ozone NAAQS? Expected Timeline Impacts Recent Ozone Standard Revisions Less than 2 years ago (March 12, 2008)EPA revised the 8-hour ozone standard Primary ...


    By Trinity Consultants

  • U.S. EPA Propses Revisions to Ozone NAAQS

    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 so that the Obama administration could review the standards and determine whether they should be reconsidered. On September 16, 2009, U.S. EPA announced ...


    By All4 Inc.

  • 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.

  • Dispersion Notes: U.S. EPA Proposes Changes to AERMOD and CALPUFF

    Last week, BREEZE staff made the trip to U.S. EPA’s offices in North Carolina for their 11th Modeling Conference to get the latest updates on upcoming changes to the AERMOD system, CALPUFF, and other issues.  The highlights include:  Relief is coming to U.S. AERMOD users dealing with overprediction of ...

  • States propose attainment designations for the new 1-hour So2 NAAQS

    The U.S. EPA revised the primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2) on June 2, 2010 by implementing a new 1-hour standard of 75 parts per billion (ppb) (calculated as the three-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations). Based on an evaluation of the risks posed by acute exposure to SO2, EPA ...


    By Trinity Consultants

  • New NO2 air standards prove technically challenging

    On February 9, 2010, the U. S. Environmental Protection Agency (EPA) established a new National Ambient Air Quality Standard (NAAQS) for nitrogen dioxide (NO2). The new NO2 NAAQS is a one-hour standard set at 100 parts per billion (ppb), which is approximately 188 micrograms per cubic meter (μg/m3). Effective on April 12, 2010, the new one-hour standard is intended to protect against peak ...


    By Trinity Consultants

  • NSR Changes in the Phase 2 Final Rule to Implement 8-hour Ozone NAAQS

    Introduction On November 29, 2005, Phase 2 of the final rule to implement the 8-hour Ozone National Ambient Air Quality Standard (NAAQS) was promulgated in the Federal Register (70 FR 71612).  Among other issues, the final rule addresses reasonably available control technology (RACT) and reasonably available control measures (RACM), reasonable further progress (RFP), modeling and ...


    By Trinity Consultants

  • 5 Questions to Ask About EPA’s Forthcoming Clean Power Plan

    This article was co-authored by Kristin Meek and was republished with permission from the World Resources Institute, a global research organization which seeks to create equity and prosperity through sustainable natural resource ...


    By Intelex Technologies Inc.

  • 2011 Predictions for EPA`s Office of Chemical Safety and Pollution Prevention

    The Acta Group, L.L.C.'s (Acta) thoughts are below on what may be headed our way in 2011 from the U.S. Environmental Protection Agency's (EPA) Office of Chemical Safety and Pollution Prevention (OCSPP). In short, the general trends established by the Obama Administration during the past two years are expected to continue notwithstanding the 2010 election results. At the same time, the impact of ...


    By Acta Group

  • `The Advantages & Drawbacks of the EPA`s Coating & Composites Coordinated Rule Development,` presented at the 2000 SUR

    Introduction Under the 1990 Clean Air Act Amendments (CAAA), the U.S. EPA is required to regulate sources of hazardous air pollutants (HAPs). Primarily, HAP emissions are regulated through National Emission Standards for Hazardous Air Pollutants (NESHAPs), which are codified under Title 40 Code of Federal Regulations (CFR)Part63. NESHAPs address HAP emissions from a particular process ...


    By Trinity Consultants

  • 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

  • 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

  • Urgent CAIR needed

    On July 11, 2008, the US Court of Appeals for the District of Columbia Circuit vacated (overturned) the US Clean Air Interstate Rule (CAIR). Adopted in 2005, CAIR was a centerpiece of the US Environmental Protection Agency’s (EPA) strategy to reduce multiple pollutants from major stationary sources. CAIR was expected to reduce power plant emissions in 28 eastern states and the District of ...

  • Nanotech and Jobs: Congress Weighs In

    The new Republication-led House of Representatives has expressed its concerns with what it refers to as the adverse impact of regulations on jobs and the economy. On February 10, 2011, this concern reached a new pitch. On this date, during a hearing on "Regulatory Impediments to Job Creation," the House Committee on Oversight and Government Reform released a preliminary staff report entitled ...


    By Bergeson & Campbell, P.C.

  • Performance-Based Measurement Systems

    Many of the Environmental Protection Agency's (EPA's) methods used to monitor air, water and soil for environmental contaminants prescribe step-by-step details on how the chemical analysis must be conducted and prohibit any deviations or variations. The EPA has recognized that monitoring equipment and technology have improved tremendously over the last few years; that environmental media do not ...


    By WSP | Parsons Brinckerhoff

  • Putting the brakes on biodiesel

      Come December 31st, the Texas Commission on Environmental Quality (TCEQ) is set to effectively ban biodiesel in the state’s largest markets. The problem, they say, lies with the fuel’s nitrogen oxide (NOx) emissions and their contribution to the formation of ground-level ozone in Texas’ eastern counties. According to the TCEQ, biodiesel does not meet the stricter NOx standards recently ...

  • A look back at U.S. climate policy in 2011

    As the year winds down, it’s a good time to take stock of climate policy in the United States. Here’s a quick round up of what happened – or didn’t happen – in 2011. The year began with big questions about what the Obama Administration and states would do to address climate change and clean energy, absent a comprehensive federal climate policy. This year’s ...

  • Nanotech and Jobs: Congress Weighs In

    The new Republication-led House of Representatives has expressed its concerns with what it refers to as the adverse impact of regulations on jobs and the economy. On February 10, 2011, this concern reached a new pitch. On this date, during a hearing on "Regulatory Impediments to Job Creation," the House Committee on Oversight and Government Reform released a preliminary staff report entitled ...


    By Acta Group

  • Biomass energy outlook

    Over the last three or four weeks, my newsletter, Burning Bio News, has been oddly extreme. Timothy Searchinger, Princeton University, is churning out more antibiofuel hearsay. Dennis Avery, Hudson Institute, was in the news again putting a counter-spin on climate change. The U.S.EPA released its proposed rule for regulation of Greenhouse Gases (GHG) that includes industrial facilities that emit ...


    By BioCycle Magazine

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you