air quality law Articles

  • Why measuring the ambient NO2 without conversion?

    Nitrogen oxides NOx are pollutants that may have particular impact in terms of greenhouse gases, acidifying air etc ... issuance increased significantly since 1950 with the massive development of transport and industries. It therefore becomes necessary to provide measures always safer these pollutant gases, and to know the reliability of results. Currently, 60% of emissions of NO and NO2 are ...


    By ENVEA

  • Particulate Matter Testing - BG3 Partial Flow Dilution Emissions Sampling - Case Study

    Today, the BG3 Elite Series for partial flow dilution (PFD) is the standard used to test and measure particulates by such industry giants as Caterpillar, John Deere, Perkins, JCB, and even the US EPA, and has found a global installed base of hundreds of units.  On January 7, 2011, ...


    By Sierra Instruments, Inc.

  • Power Positive Resource Recovery

    Using laws of thermodynamic analysis to evaluate the energy and power characteristics of wastewater and beneficial uses of biogas offers greater insight into best business practices and what is achievable. Growing numbers of waste-water treatment plants (WWTP) are striving to produce more power onsite. In recent years, there’s even been a race among WWTP operators to see who can ...


    By BioCycle Magazine

  • Case Study: Odor Abatement Solutions

    Odor issues related to industrial processes are not uncommon.  An odor is caused by one or more volatilized organic compounds (VOCs) that humans can perceive by the sense of smell.  The challenge is that “odor is subjective, and what is sweet to some, can be a nuisance to others.   In most cases the ...

  • Small lime works with big technology

    Recently, KöhlerKalk in Northern Hesse commissioned a new kiln. Thanks to the rotary lobe compressors made by AERZEN, the plant manufactured by QualiCal counts among the most efficient solutions in its field.  In Northern Hesse, they are calcining dolomite, a crystalline mineral mixture consisting of calcium carbonate and magnesium carbonate. This burnt lime is particularly suitable ...

  • Talking Trash: The world`s waste management problem

    Trash is a pervasive but unnoticed part of our lives. The great irony of waste management is that even the most efficient and well-run waste collection programs remain out of sight, ignored by the public that they serve. Only with failure does the omnipresence of trash really come to light. Today, many nations face a looming waste management crisis, as their landfills reach capacity and continue ...

  • Turning back the tide - Remaking the EPA

    Stressing the importance of scientific integrity and transparency, EPA Administrator Lisa P. Jackson last month called for key changes to the process for reviewing National Ambient Air Quality Standards (NAAQS) to protect human health and the environment. 'It’s essential that the best science and the greatest transparency inform air quality standards that prevent illness and save lives,' said ...


    By GLOBE SERIES

  • Gas Monitoring for Ventilation Control and Energy Management

    The growing demand for underground and enclosed parking and maintenance garages (resulting from limitations on land availability) has increased the awareness and need for proper ventilation and control systems. In addition, increased health and safety programs have only added to the concerns of toxic and combustible gases in confined or enclosed spaces. Historically, ventilation and make-up air ...


    By Arjay Engineering Ltd.

  • Challenge to EU leaders: Time to move Europe Beyond Coal

    Health, environment and climate groups are calling on the European Union to hasten the move away from coal and other fossil fuels and towards clean renewable energy. As ‘Europe Beyond Coal’ launches, Brussels-based groups have set the EU five challenges to help Europe become coal-free by 2030.  As the world’s nations convene in Bonn for the ...

  • Need for national soil policies for developing countries - some facts

    As a soil scientist working for more than 25 years, I am very much concerned with soil protection and conservation. In this process, I started collecting information related to national soil policies of different countries. To my surprise I could not get a well defined national soil policy for any one of the developing country? A developing country can be defined as , that country which has a ...

  • Increasing Environmental Commitment in Supply Chain Performance Management

    In 2015, China reinforced its environmental policies and laws, strengthening air and water pollution controls. Trend toward Environmental Commitment Almost immediately, polluters found themselves subject to litigation, for example, a group of chemical companies subjected to compensation demands for about US$26 million (1). China is supporting victims of ...


    By SGS

  • EPA shifts PM2.5 PSD permitting policies

    On August 12, 2009, EPA created a significant stir in the regulated community when it issued an order that signals a significant shift in how the agency intends particulate matter with a diameter less than 2.5 micrometers (PM2.5) emissions to be regulated under the Prevention of Significant Deterioration (PSD) program. The order specifically applied to petitions filed by environmental groups ...


    By Trinity Consultants

  • The 10 Key Factors in Selecting a Stack Sampling Firm

    Summary: This document is a summary of the key factors that you should take into consideration when hiring a stack testing firm.This has been prepared in conjunction with the ASTM criteria for standard practice of testing companies.The ASTM criteria has been supplemented, based on 125 years of direct testing experience, which is the combined years of experience of the individuals that contributed ...

  • Environmental forensics: courting science?

    Forensics and hydrology are two terms that may not seem to go together well. To the uninitiated, this combination may evoke images of the crime scene investigation that ensues when some patsy goes into the drink wearing cement overshoes. Rather, the term environmental forensics, essentially the parent discipline of forensic hydrology, has found its way into contemporary parlance owing to ...


    By Hargis + Associates Inc

  • How the Indianapolis Airport Authority is going green while saving money - Case Study

    The Indianapolis Airport Authority (IAA) is actively supporting environmental sustainability efforts as a member of the global aviation community.  The IAA is “committed to engaging in environmentally responsible, sustainable operations, and minimizing any adverse environmental impacts.” This progressive group has identified three main ...


    By Harmony Enterprises, Inc.

  • Documentary highlights the dangers of air pollution

    “Under the Dome" showcases huge problem in China The “fog” blanketing China most days used to be thought of as a natural weather phenomenon that couldn’t be helped. But since 2012, the words “smog”, “PM2.5”, “air pollution” and “fine particles” have become analogous to a nation’s struggle against an ...


    By Allerair Industries

  • Study Charts a Future for Waste-Derived Fuels

    Pointers to possible future EU policy initiatives to give co-incineration facilities burning waste-derived fuels a strategic role in waste management have emerged in a study for the European Commission.1 The report suggests a policy focus on promoting source separation of municipal wastes, active discouragement of mass burn incinerators, and a levelling of the regulatory playing-field for ...

  • The quest for the perfect flowmeter

    Gases & Instrumentation had the oppor-tunity to speak with Dr. John G. Olin, Founder and Chairman of the Board of Sierra Instruments about the evolution of thermal mass flow meters and his latest product in this technology. Gases & Instrumentation: You have been engaged in thermal mass flow technology for a number of years. You must have seen a lot of change. ...


    By Sierra Instruments, Inc.

  • Management of Mining, Quarrying and Ore-Processing Waste in the European Union

    At the request of the Environment Directorate-General of the European Commission, BRGM (Bureau de Recherches Géologiques et Minières) has conducted a study on the management of mining, quarrying and ore-processing waste in the European Union. This project was completed mainly through the use of questionnaire sent to sub- contractors in almost each country of the EU. To assess this information ...

  • January Anaerobic Digest

    San Francisco Bay Region, California: ABC Digester Operator Training Course The American Biogas Council (ABC) has organized a 3-day, hands-on operator training course, February 6-8, 2018 in the San Francisco Bay area, that focuses on digester operations overall with an additional emphasis on renewable natural gas (RNG) and codigestion at wastewater treatment plants. Each morning starts ...


    By BioCycle Magazine

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