131 Articles found
Air & Waste Management Association (A&WMA) Articles
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An analysis of extinction coefficients of particles and water moisture in the stack after flue gas desulfurization at a coal-fired power plant
Two important factors that affect in-stack opacity—light extinction by emitted particles and that by water moisture after a flue gas desulfurization (FGD) unit—are investigated. The mass light extinction coefficients for particles and ...
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Vertical and Diurnal characterization of volatile organic compounds in ambient air in Urban areas
More than half of the world’s population lives in cities, and their populations are rapidly increasing. Information on vertical and diurnal characterizations of volatile organic compounds (VOCs) in urban areas with heavy ambient air pollution ...
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Technology: clean air’s unsung hero
Last year, we celebrated the 40th anniversary of the U.S. Clean Air Act (CAA) and the 20th anniversary of the 1990 Amendments to the CAA. The CAA has been a huge success. From 1990 to 2008, emissions of six common pollutants were down 41%, while ...
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An essential resource: water management, conservation, and preservation
Sustainable water resource management is the next major global target that will lead corporations, governments, and others to develop system-wide solutions for water, public health, carbon, and energy use. A standardized and certifiable water ...
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Greenhouse gas emissions from waste management-assessment of quantification methods
Of the many sources of urban greenhouse gas (GHG) emissions, solid waste is the only one for which management decisions are undertaken primarily by municipal governments themselves and is hence often the largest component of cities’ corporate ...
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Influence of sea-land breezes on the tempospatial distribution of atmospheric aerosols over coastal region
The influence of sea-land breezes (SLBs) on the spatial distribution and temporal variation of particulate matter (PM) in the atmosphere was investigated over coastal Taiwan. PM was simultaneously sampled at inland and offshore locations during ...
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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 ...
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Human health effects of particulate matter air pollution - comments on current state of the science
The science of particulate air pollution and health has a long, rich, and complex history. More detailed versions of various aspects of this history can be found elsewhere.1-5 A simple stylized version of this history may suggest that, until the ...
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School bus retrofits one local air
The Hamilton County Department of Environmental Services, a local air agency covering the Greater Cincinnati Area in Southwest Ohio, has experienced many successes and failures obtaining grant money to fund school bus retrofits. However, seven years ...
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Environmental and human health risks of aerosolized silver nanoparticles
Silver nanoparticles (AgNPs) are gaining attention from the academic and regulatory communities, not only because of their antimicrobial effects and subsequent product applications, but also because of their potential health and environmental risks. ...
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Alberta’s energy-and-environment story is more than ‘dirty oil’ - the western Canadian province has pioneered environmental stewardship programs
Alberta’s energy-and-environment story is a lot more than the chapter on “dirty oil.” The Western Canadian province certainly faces some significant environmental challenges, especially in continuing to expand development of ...
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Expanding lead monitoring in support of EPA`s revised NAAQS
On October 15, 2008, the U.S. Environmental Protection Agency (EPA) substantially strengthened the National Ambient Air Quality Standards (NAAQS) for lead. The revised standards are 10 times lower than the previous standards and will improve health ...
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Mercury speciation and distribution in a 660-megawatt utility boiler in Taiwan firing bituminous coals
Mercury speciation and distribution in a 660-MW tangential-fired utility boiler in Taiwan burning Australian and Chinese bituminous coal blends was investigated. Flue gases were simultaneously sampled at the selective catalytic reduction (SCR) ...
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The European environmental liability directive and comparisons with U.S. natural resource damage assessment regulations
In recent months, there has been increasing awareness and interest on the part of corporate organizations as to how to prepare for the enactment of the European Union (EU) Environmental Liability Directive (ELD)1 into national laws of the EU Member ...
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Study of the properties of Aerosols and the air quality index Using a Backscatter Lidar System and Aeronet Sunphotometer in the city of Sao Paulo, Brazil
Between the months of July and September of 2007 during the so-called Brazilian dry season, an aerosol profiling campaign was carried out with a backscatter(ing) lidar system in the city of Sao Paulo, Brazil. The main goal of this campaign was to ...
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Chemical characterization and preliminary source contribution of fine particulate matter in the Mexicali/Imperial valley border area
ABSTRACTThe airshed shared by the Valley of Mexicali in Mexico and Imperial Valley in the United States frequently experiences high levels of particulate matter (PM) less than 10 m (PM10). However, very little information exists on the ...
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Think! energy and take action!
Fans of the Purdue Boilermakers will tell you late September in West Lafayette, IN, is football season. Purdue Pete, uniformed in the nostalgic old gold and black, rallies the fans at Ross-Ade Stadium, and the crowd gets energized for another ...
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In-Vehicle exposures to particulate matter and black carbon
ABSTRACTIn-vehicle exposures to particulate matter (PM) and black carbon (BC) can be a significant part of personal totalexposure. The purpose of this study was to identify determinants of the in-vehicle pollutant level. This study measured ...
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Review of recent advances in detection of organic markers in fine particulate matter and their use for source
ABSTRACTFine particulate matter is believed to be more toxic than coarse particles and to exacerbate health problems such asrespiratory and cardiopulmonary diseases. Specific organic compounds within atmospheric fine particulate material can be used ...
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Using a direct method to characterize and measure flows of municipal solid waste in the United States
ABSTRACTAlthough there are a myriad of sources of municipal solid waste (MSW) data in the United States, much of thesedata are not transparent and are also extremely difficult to find. In addition, the two major methods of quantifyingnational MSW ...
