Margrethe Winslow

Relationships Between Chemical Screening Methodologies for Petroleum Contaminated Soils: Theory and Practice

S. A. Denahan, Barbara J. Denahan, W. G. Elliott, William A. Tucker et autres

Identification, assessment, and remediation of petroleum contaminated sites is a major task facing civilized society. Thousands of these sites exist in the country. Traditional assessment technology for the definition of the spatial extent of contamination involves the collection and laboratory analysis of …

Environmental Quality, Economic Growth, and Democracy

Margrethe Winslow

It is widely asserted in the trade and development literature that economic growth leads to environmental quality improvements once a given income level is achieved. This relationship is sporadic and, where it does exist, the causal mechanism is far more complex than …

Is Democracy Good for the Environment?

Margrethe Winslow

This paper presents empirical evidence to support the existence of a relationship between democracy and one aspect of environmental quality, urban air pollution. The relationship between environmental quality and democracy is explored empirically using a regression analysis of urban air concentrations of …

The environmental Kuznets curve revisited once again

Margrethe Winslow

In the past decade, considerable attention has been paid to the hypothesized inverted U-shaped relationship between income level and environmental quality, known as the environmental Kuznets curve (EKC). An overview of empirical studies of this relationship finds limited evidence for an EKC. …

The role of the poor in dryland degradation

Margrethe Winslow, B J Shapiro, D. Niemeijer

Screening and analysis for high levels of volatile organic compounds using compendium method TO14

Matthew Booth, Glen P. Jackson, Dennis R. Roberts, Margrethe Winslow

Compendium method TO14 is the EPA`s recommended guidance method for the sampling and determination of volatile organic compounds (VOCs) in ambient air samples collected in SUMMA{reg_sign} passivated canisters. In addition to samples containing ambient levels of VOCs, many air samples with VOC …

Determination of carbonyl compounds by HPLC/UV analysis in the CASTNet Air Toxics Monitoring Program (CATMP)

B.A. Weichert, R. D. Baker, B. Thomas Johnson, Margrethe Winslow

The determination of carbonyl compounds in ambient air is one of the analytical requirements of the Environmental Protection Agency`s (EPA`s) Clean Air Status and Trends Network (CASTNet) Air Toxics Monitoring Program (CATMP). The CATMP was established in 1993 by EPA to reactivate …

VOC quality control measurements in the CASTNet Air Toxics Monitoring Program (CATMP)

Margrethe Winslow, Matthew M. Booth, D.F. Roberts

The determination of volatile organic compounds (VOCs) in ambient air with acceptable precision and accuracy at concentration levels as low as 0.1 ppbV is the primary analytical requirement of the Environmental Protection Agency`s (EPA`s) Clean Air Status and Trends Network (CASTNet) Air …

Gas Chromatographic/Electron Capture Detection Method for Determination of Chlorinated Acids in Water: Collaborative Study

Kenneth W Edgell, Elizabeth J Erb, Raymond Wesselman, James E Longbottom et autres

A U.S. Environmental Protection Agency (USEPA) interlaboratory method validation study was conducted on USEPA Method 515.1, "Determination of Chlorinated Acids in Water by Gas Chromatography with an Electron Capture Detector." This method is one of the 6 pesticide methods developed for the …

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