ozone standard Articles

  • EPA clamping down on Ozone standards

    The U.S. Environmental Protection Agency (EPA) is preparing to again lower its ozone standard. This action reduces the amount of ozone that is allowed in the air we breathe and thus forces more industrial sources to further reduce their air pollution emissions. In this white paper we look at: What will happen when the new ozone standard is finalized; and Ways to deal ...

  • Rethinking the California Air Resources Board`s ozone standards

    The California Air Resources Board (CARB), California’s state air-pollution regulatory agency, recently adopted the most stringent ozone air-pollution standard in the United States. Attempting to attain the new standard will impose great hardship on Californians in exchange for small and imperceptible health benefits.By CARB’s own estimates, the incremental benefits of attaining its new ...


    By Blue Sky Consulting Group

  • 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 ...

  • A Different Way of Looking at Ozone

    Ozone, a tri-oxygenated molecule, is known to act as a shield to protect us from the sun’s harmful rays.  As this innocent molecule plummets to the lower elevations on its journey to our hometowns, it meets hydrocarbon vapors and oxides of nitrogen (bad company), is exposed to sunlight and temperature (bad influence), and becomes a culprit and villain named photochemical smog or bad ozone. ...


  • Qmax Ozone Presentation

    Ozone (O3) is an allotrope of oxygen, the molecule consisting of three oxygen atoms instead of the more stable diatomic O2 Ozone is a pale blue gas at standard temperature and pressure. It forms a dark blue liquid below -112 ºC and a dark blue solid below -193 ºC. Ozone is a powerful oxidizing agent. It is also unstable, decaying to ordinary oxygen through the reaction: ...


  • Ozone Based WasteWater Treatment

    The Australian Water Association held an international conference on 'Onsite and Decentralized' waste water treatment systems in Benalla, VIC. This was the abstract presented by Kyle Greene, Seair Canada Head of Research and Development. These portable wwtps are used in the extremes of northern Canada oil, gas and mining camps. Featuring: Heavy duty steel container, industrial weather coated, ...


  • A Discussion on Ozone Chemistry

    MEMBRANE AND APPLICATION DEVELOPMENT 1.0 INTRODUCTION The ability of ozone to effectively treat wastewater is dependent on the nature of contaminant in question. For example, ozone will readily remove color from a dye solution, but has much more difficulty reducing the biochemical oxygen demand (BOD) of a sucrose stream. These differences in ozone effectiveness are ...

  • Ozone toxicology and guidelines for safe use in cooling water ozonation systems

    Abstract Ozone, like all oxidizing gases, is potentially harmful if human exposures occur at a significant concentration for a sufficient duration. This paper discusses the physical properties of ozone, current exposure standards, toxicology of ozone, and recommended safety practices for safe operations in cooiing water treatment ...


    By Zentox Corporation

  • Ozone Brings Better Bottled Water

    The proliferation of bottled beverages worldwide and an increased awareness of consumer health issues have beverage bottlers rethinking how to keep their liquids safe for consumption. One problem they face is the need to deliver a product that is free of bacteria, to provide extended shelf life and product quality. Ozone has quickly become the disinfectant of choice among water bottlers ...

  • 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.

  • Economic Evaluation of Air Quality Targets for Tropospheric Ozone

    The study identifies and estimates the (least) costs and benefits of meeting ambient air quality standards (different sets of limit/target values) for tropospheric ozone in the EU, taking into account deposition constraints for acidification. This report is divided into three parts: Part A describes the methodology of the analysis and reviews the databases used for the scenario calculations. ...

  • Impacts of Ozone Nonattainment Designation and Strategies for Compliance

    In 1997, the U.S. Environmental Protection Agency (U.S. EPA) revised the National Ambient Air Quality Standards (NAAQS), to include an 8-hour ozone standard. The previous 1-hour ozone standard addressed the effects of exposure to short periods of high concentrations of ground-level ozone. The intent of the new standard is to address exposure to lower ozone levels over longer durations. With the ...


    By Trinity Consultants

  • Ozone is Not Just for Residential Potable Water Treatment

    It has been over 170 years since the d iscovery of the ozone (O3) molecule. Since that time, scientists and engineers have been testing and evaluating ways to use ozone in many different processes, from water and air treatment to surface and food sanitation. The evolution was somewhat slow in the early days, taking nearly 50 years before Europeans found, in 1886, that ozone could be used for ...

  • 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

  • Utilizing UV, ozone & AOP technologies for municipal, industrial & waste water treatment

    ESCO International Solutions & Technologies provide a unique portfolio of technical expertise and equipment, specializing in Ozone, UV and Advanced Oxidation Processes (AOP) for water, gas effluent & Odour treatment. Adapting to strict user guidelines and customer focused design means ESCO International systems are reliable and delivers high water purification standards. As conventional ...


    By ESCO International

  • Outdoor/Indoor/Personal Ozone Exposures of Children in Nashville, Tennessee

    An ozone (O3) exposure study was conducted in Nashville, TN, using passive O3 samplers to measure six weekly outdoor, indoor, and personal O3 exposure estimates for a group of 10- to 12-yr-old elementary school children. Thirty-six children from two Nashville area communities (Inglewood and Hendersonville) participated in the O3 sampling program, and 99 children provided additional timeactivity ...


    By Ogawa & Company, USA, Inc.

  • Ozone pilot study at Camp Lejeune - Marine Coprs Base

    Air and Ozone Sparging of TCE Using a Directionally Drilled Horizontal Well#11;#11;Site 86, Camp Lejeune CH2M HILL used a Piper Environmental Group ozone injection system for site remediation purposes with good results. Site 86 is associated with three former waste oil ASTs, used during the 70s and 80s. Over the course of several investigations since 1992, the solvent plume migrated away ...

  • Ozone for Cooling Tower Systems - An update and lessons learned at the Kennedy Space Center

    Keywords: Ozone, Cooling Water, Stand-Alone Treatment, and Large Capacity Cooling Tower Summary: The operational experience and performance of the successful use of ozone as a stand-alone cooling water treatment method are discussed. Several guidelines for design parameters and operational controls are presented. From a wide field of application experience, the author ...


    By Absolute Systems Inc.

  • Weekend?Weekday differences in near-surface ozone concentrations in Chennai, South India

    The paper describes the weekend?weekday differences in near-surface ozone (O3) concentration in Chennai, South India. The O3 data measured during 18 January 2006 to 28 February 2006 has been analysed. The result indicated no major difference between the weekdays and weekend profiles for the O3 concentrations. Further, oxides of nitrogen (NOx), carbon monoxide (CO), Suspended Particulate Matter ...


    By Inderscience Publishers

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