air quality scientist Articles

  • Staff spotlight: atmospheric scientist tackles complex air quality issues

    George Schewe, a Certified Consulting Meteorologist and Qualified Environmental Professional, joined Trinity’s Covington, Kentucky office in 2008. A veteran of EPA with nearly three decades of consulting experience, George is well-versGeorge Schewe_photoed in air quality regulatory requirements and a master in complex air dispersion modeling analyses. Here is George’s take on his role ...


    By Trinity Consultants

  • Air quality in America

    Although most Americans tell pollsters they believe air pollution in the United States is getting worse, the reality is quite different. In 'Air Quality in America: A Dose of Reality on Air Pollution Levels, Trends, and Health Risks' (AEI Press, January 2008) environmental scientist Joel Schwartz and political scientist Steve Hayward demonstrate why air pollution has been dropping steadily for ...


    By Blue Sky Consulting Group

  • ‘Sleeper’ Issue: Indoor Air Quality

    Thirty percent of commercial buildings in the United States have poor indoor air quality (IAQ), according to an ...


    By ProMark Associates, Inc.

  • Reducing NOx in Diesel Emissions | Spectroscopy Solutions

    Air pollution and NOx emissions from diesel engines are a global concern due to their potential impacts on human health. Researchers worldwide are developing new and improved methods to reduce NOx emissions. Infrared spectroscopy in the gas phase, which is made possible using FTIR gas cells from Specac, has an important role to play in this ...


    By Specac Limited

  • Proactive Indoor Air Quality Surveys Save Budgets

    As facility budgets tighten, managers are realizing the many benefits that money spent for proactive indoor air quality is a smart investment. Here is a simple comparison to exemplify the point. Indoor air quality investigations conducted in response to employee complaint or illness clusters cost $3.00 to $10.00 per square foot of space investigated compared to 2 to 10 cents per square foot for a ...

  • Carbon Monoxide, Carbon Dioxide and Indoor Air Quality

    Chances are that unless you are hot or cold – or if you smell something funny – you probably never think about indoor air quality. However, scientists know that gases in the air that you cannot see or smell can still affect your health. Carbon Monoxide The most dangerous gas most of us will ever face is carbon monoxide (CO). Not normally occurring in nature, this ...


    By Air Concern Limited (ACL)

  • Air quality one of many risk factors for IVF

    Pregnancy is a complex process in the best possible scenario - two people deciding to have a baby and conceiving naturally. Even then, many things can go wrong. There is truth in sayings such as “babies are miracles.” But what if a couple just doesn’t get pregnant? According to the CDC, infertility is a common concern in North America, affecting one out of every eight couples ...


    By Allerair Industries

  • Scientists call manmade chemicals like refrigerant gases a cause of climate change

    A major cause of climate change is the harm that is done to the Earth by man-made chemicals. Whilst chemicals, such as those used to produce day by day items, operate equipment and generally make life easier, are necessary, they present a threat to the environment. Governments around the world have set new regulations to limit the use of substances that contribute to global warming and deplete ...


    By Verisae

  • California Air Resources Board (CARB) places higher restrictions on air pollution

    As part of the California Global Warming Solutions Act (AB 32) the Air Resources Board (ARB) has approved an early action measure to reduce high-global warming potential (GWP) greenhouse gas (GHGs) emissions by establishing new legislation and defining requirements related to improved monitoring of AC/HVAC systems, enforcement of regulations, reporting of refrigerant usage, and recovery, ...


    By Verisae

  • Finding Air Pollution Solutions by Tracking Particulates and Gases

    An estimated 95% of people live in areas where outdoor fine particulate concentrations exceed the air quality guideline of 10 µg/m3 set by the World Health Organization. Almost 60% of people live in areas where fine particulate matter exceeds even the least stringent WHO interim air quality target of 35 µg/m3. These figures are presented in the State of Global Air 2018 project, and ...


    By Opsis AB

  • Cave Researchers Descend Into the Depths with the TROLL® 9500 Water Quality Instrument - Case study

    Overview Research of cave pool stratification may help scientists understand the geochemical origin and evolution of cave pool waters (Levy 2008). Dr. David Levy conducted a study to test the hypothesis that certain cave pools may be predisposed to a condition of permanent chemical stratification (meromixis), depending on the specific effects of pool morphometry and localized environmental ...


    By In-Situ, Inc.

  • Effects of air pollution on European ecosystems - Past and future exposure of European freshwater and terrestrial habitats to acidifying and eutrophying air pollutants

    Poor air quality not only harms human health; it also impacts the structure and function of ecosystems, often far away from the emission sources. This report focuses on the deposition of airborne sulphur (S) and nitrogen (N) compounds and their negative effects on ecosystems. N- and S-containing air pollutants are released to the atmosphere by combustion processes such as the burning of coal or ...

  • 7 million premature deaths annually linked to air pollution

    New estimates released earlier this year by the World health Organization (WHO) suggest that in 2012 around 7 million people died – one in eight of total global deaths – as a result of air pollution exposure. This finding more than doubles previous estimates and confirms that air pollution is now the world’s largest single environmental health risk. Reducing air pollution could ...


    By GLOBE SERIES

  • How air pollution affects climate: short-lived climate forcers

    While long-lived greenhouse gases—particularly carbon dioxide (CO2)—continue to occupy center stage in international climate negotiations, another group of pollutants has been gaining attention among scientists and policy-makers: the so-called “short-lived climate forcers,” including black carbon and ozone. These pollutants have been regulated in the United States for ...

  • Tracking Air Pollution with Mini Micro Pulse LiDAR - Case Study

    Portable Monitoring Solution Offers Valuable Insight Into Haze Problem Poor air quality in large urban population centers has a negative impact on health and quality of life. To address these issues, the Institute of Urban Meteorology (IUM) in Beijing, China, is conducting fundamental research to better understand, forecast and mitigate atmospheric haze, i.e., air pollution. Over the past ...

  • A Special Issue of the Journal of the Air & Waste Management Association on Regional and Global Perspectives on Haze: Causes, Consequences, and Controversies

    This issue of the Journal of the Air & Waste Management Association contains selected papers presented at the October 2004 A&WMA Visibility Specialty Conference in Asheville, NC. (A CD-ROM containing full manuscripts or extended abstracts of each paper is available from the A&WMA Online Library at http://www.awma. org; Order Code VIP-134-CD, ISBN 0–923904-72–5.) The title of the conference, ...

  • Legal Lookout: EPA Staff Urges Changes in PM Standards

    Earlier this year, EPA staff scientists urged agency management to revise the current particulate matter (PM) standards for fine particles and the inhalable portion of coarse particles, based on evidence that suggests to EPA scientists that more protection is needed than is provided under current air standards. Background The Clean Air Act (CAA) requires that EPA periodically review its ...


    By Bergeson & Campbell, P.C.

  • Review of the requirements for models and model applications

    Requirements for models and model applications are reviewed on basis of the Dobris Assessment report and the practice in EU legislation and international organisations, and from the responses of a questionnaire sent to 38 European countries. Model applications are frequently used for regulatory and general assessment purposes by various users (scientists, air quality managers, policy-makers). ...


    By Inderscience Publishers

  • How Serious are the Issues of IAQ?

    In a recent report, UL’s scientists estimated that there are 80,000 chemicals in international commerce today, with only 3% having been fully evaluated for health impacts. The danger is exacerbated by sealing building envelopes to conserve energy and trapping some of these chemicals inside buildings. The increase in awareness of mold as a cause of human health complications has catalyzed an ...


    By ProMark Associates, Inc.

  • Legal Lookout: EPA Staff Urges Changes in PM Standards

    Earlier this year, EPA staff scientists urged agency management to revise the current particulate matter (PM) standards for fine particles and the inhalable portion of coarse particles, based on evidence that suggests to EPA scientists that more protection is needed than is provided under current air standards. Background The Clean Air Act (CAA) requires that EPA periodically review its ...


    By Bergeson & Campbell, P.C.

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