132 Articles found
Air & Waste Management Association (A&WMA) Articles
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Forum: Achieving Sustainability through Innovation
Although making global economic development more sustainable has been labeled a critical issue for the 21st century, little progress has been made. Making economic development sustainable over the long term will require a complete overhaul of ...
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Analysis of Trace Elements and Ions in Ambient Fine Particulate Matter at Three Elementary Schools in Ohio
ABSTRACT The results from a chemical characterization study of fine particulate matter (PM2.5) measured at three elementary schools in Central and Southeast Ohio is presented here. PM2.5 aerosol samples were collected from outdoor monitors ...
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What Every Environmental Professional Needs to Know About TMDLs
Much attention has been focused lately on the total maximum daily load (TMDL) program under Section 303(d) of the Clean Water Act (33 U.S.C. § 1313(d)). This program has generated considerable controversy, largely because it is perceived that ...
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Modeling Dispersion from Toxic Gas Released after a Train Collision in Graniteville, SC
ABSTRACT The Savannah River National Laboratory (SRNL) Weather Information and Display System was used to provide meteorological and atmospheric modeling/consequence assessment support to state and local agencies after the collision of two Norfolk ...
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Vapor Intrusion: Risks and Challenges
Vapor Intrusion (VI), defined as the migration of volatile contaminants from the subsurface into the indoor air of overlying buildings, is a major and challenging environmental issue for both regulators and the regulated community—one that continues ...
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Real-World Vehicle Emissions: A Summary of the Sixteenth Coordinating Research Council On-Road Vehicle Emissions Workshop
ABSTRACTThe Coordinating Research Council held its 16th workshop in March 2006, with 83 presentations describing the most recent mobile source-related emissions research. In this paper, we summarize the presentations from researchers who are engaged ...
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Border 2012: Unique Challenges in Managing Waste
Waste—whether it is hazardous or nonhazardous, liquid or solid—has no respect for state or national borders, and this can present unique challenges for waste management in areas like the U.S.–Mexico border region. The Border 2012 program, which was ...
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Use of n-Fold Cross-Validation to Evaluate Three Methods to Calculate Heavy Truck Annual Average Daily Traffic and Vehicle Miles Traveled
ABSTRACTReliable estimates of heavy-truck volumes in the United States are important in a number of transportation applications including pavement design and management, traffic safety, and traffic operations. Additionally, because heavy vehicles ...
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Building the National Emissions Inventory: Challenges and Plans for Improvement
Next time you drive past a petroleum refinery, an automobile manufacturing plant, or any large industrial facility, take a look at all the stacks, pipes, and vents. Imagine how difficult it must be to quantify all of the air pollutants released ...
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Feasibility Study of Using Brine for Carbon Dioxide Capture
ABSTRACT A laboratory-scale reactor was developed to evaluate the capture of carbon dioxide (CO2) from a gas into a liquid as an approach to control greenhouse gases emitted from fixed sources. CO2 at 5–50% concentrations was passed through a ...
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Climate Change Initiatives are Heating Up in the United States
If you thought the reporting of greenhouse gas (GHG) emissions would not affect you, think again! The climate change issue is heating up in the United States even though we are not a party to the Kyoto Protocol. With the number of extreme weather ...
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The 2006 Critical Review Discussion -- Health Effects of Fine Particulate Air Pollution: Lines that Connect
Herein is the discussion of the 2006 A&WMA Critical Review1,2 on “Health Effects of Fine Particulate Air Pollution: Lines that Connect.” In the review, Drs. C. Arden Pope III and Douglas Dockery addressed the epidemiological evidence for the ...
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Feasibility of Soil Dust Source Apportionment by the Pyrolysis-Gas Chromatography/Mass Spectrometry Method
This study tested the feasibility of using pyrolysis (Py)-gas chromatography (GC)/mass spectrometry (MS) to obtain organic chemical species data suitable for source apportionment modeling of soil-derived coarse particulate matter (PM10) dust on ...
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California`s Achievements in Mobile Source Emissions Control
Untitled Document Since its formation in 1967, the California Air Resources Board (CARB) has successfully launched numerous emissions reduction programs in the state. These programs have significantly improved ...
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Are EPA’s Proposed Revisions to the PM Standards Appropriate?
Forum invites authors to share their opinions on environmental issues with EM readers. Opinions expressed in Forum are those of the author(s), and do not reflect official A&WMA policy. EM encourages your participation by either responding ...
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Health Effects of Fine Particulate Air Pollution: Lines that Connect
Efforts to understand and mitigate the health effects of particulate matter (PM) air pollution have a rich and interesting history. This review focuses on six substantial lines of research that have been pursued since 1997 that have helped ...
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Critique of “Precipitation in Light Extinction Reconstruction” by P.A. Ryan
Untitled Document The goal of the Regional Haze Rule (RHR) is to return visibility in class I areas (CIAs) to natural levels, excluding weather-related events, by 2064. Whereas visibility, the seeing of scenic vistas, is a ...
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Sustainable Development and the Importance of Chemicals Management in the 21st Century: An Overview
A&WMA’s international specialty conference Sustainable Development and the Importance of Chemicals Management in the 21st Century, which was held December 7–9, 2004, in Ottawa, Ontario, focused on both the positive and negative aspects of managing ...
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Weekday/Weekend Differences in Ambient Air Pollutant Concentrations in Atlanta and the Southeastern United States
Abstract The authors quantified changes between mean weekday and weekend ambient concentrations of ozone (O3) precursors (volatile organic compounds [VOC], carbon monoxide [CO], nitric oxide, and oxides of nitrogen [NOx]) in Atlanta and ...
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Encouraging Americans to Reuse, Recycle, and Conserve Natural Resources
When Congress passed the Resource Conservation and Recovery Act (RCRA) in 1976, it charged the U.S. Environmental Protection Agency (EPA) with ensuring the safe disposal and management of municipal and industrial waste, and it broadly championed a ...