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

  • 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.

  • 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.

  • 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

  • New Mandatory GHG Reporting for the Oil and Gas Industry

    On January 14, 2015, the Obama Administration announced an update to its March 2014 “Strategy to Reduce Methane Emissions from the Oil and Gas Sector” (Strategy).  Within this announcement it was revealed that the Administration would be taking a host of future actions in order to achieve their methane reduction goals, including the following: Proposing and setting standards for ...


    By All4 Inc.

  • Research on raw water quality assessment oriented to drinking water treatment based on the SVM model

    Raw water quality variation has a great effect on drinking water treatment. To improve the adaptivity of drinking water treatment and stabilize the quality of treated water, a raw water quality assessment method, which is based upon the support vector machine (SVM), is developed in this study. Compared to existing raw water quality assessment methods, the assessment method studied herein is ...


    By IWA Publishing

  • 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

  • Green Village Delft – integration of an autarkic water supply in a local sustainable energy system

    For the Green Village at the campus of Delft University of Technology, an autarkic water circuit was developed. The aim was to avoid connections to the public water supply system, the sewerage, the electricity grid and cable systems. It should produce its own drinking water and electricity, and clean its organic waste streams in a sustainable way. Due to the strict Dutch drinking water ...


    By IWA Publishing

  • 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 ...

  • Product environmental footprint in policy and market decisions – applicability and impact assessment

    In April, 2013 the European Commission published the Product and Organisation Environmental Footprint (PEF/OEF) methodology ‐ a life cycle based multi‐criteria measure of the environmental performance of products, services and organizations. With its approach of “comparability over flexibility” the PEF/OEF methodology aims at harmonizing existing methods, while decreasing the flexibility ...


    By John Wiley & Sons, Ltd.

  • `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

  • Impact of Corrosion on Electronic Equipment

    Corrosion is the destruction of metals through reaction with compounds in their environment. It is a natural process because compounds such as oxides, sulphides and chlorides are formed and these are stabler than pure metals. Electronic circuits and components are omnipresent in our environment. Until recently, the thousands of soldered joints that an electronic circuit contains were ...


    By Bioconservacion SA

  • 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.

  • Non-Ionising Radiation

    Pressures on the environment may occur through chemical, physical and biological agents. The subject of this study is physical agents, where physical fields are examined. Physical fields are part of the natural environment. Depending upon their properties and the surrounding conditions, physical fields are transmitted through the spaces in which we live, potentially affecting human health and ...

  • 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 ...

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