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Toxicity Of Fluorescent Tracers And Their Degradation Byproducts, Philippe Gombert, Hugues Biaudet, René de Sèze, Pascal Pandard, Jean Carré 2017 INERIS

Toxicity Of Fluorescent Tracers And Their Degradation Byproducts, Philippe Gombert, Hugues Biaudet, René De Sèze, Pascal Pandard, Jean Carré

International Journal of Speleology

Tracer tests are frequently used to delineate catchment area of water supply springs in karstic zones. In the karstic chalk of Normandy, the main tracers used are fluorescent: uranine, sulforhodamine B, naphtionate, and Tinopal®. In this area, a statistical analysis shows that less than half of the injected tracers joins the monitored restitution points and enters the drinking water system where they undergo chlorination. Most of the injected tracers is absorbed in the rock matrix or is thrown out of the aquifer via karstic springs: then it can join superficial waters where it is degraded due to the sun and ...


Basic Science And Risk Communication: A Dialogue-Based Study, Char J. Word, Anna K. Harding, Gordon R. Bilyard, James R. Weber 2016 University of New Hampshire

Basic Science And Risk Communication: A Dialogue-Based Study, Char J. Word, Anna K. Harding, Gordon R. Bilyard, James R. Weber

RISK: Health, Safety & Environment

The authors use ethnographic analysis of a focus group discussion between scientists and laypersons to study information exchange in risk communication.


Expert And Lay Mental Models Of Ecosystems: Inferences For Risk Communication, Jeffrey K. Lazo, Jason Kinnell, Toby Bussa, Ann Fisher, Nathan Collamer 2016 University of New Hampshire

Expert And Lay Mental Models Of Ecosystems: Inferences For Risk Communication, Jeffrey K. Lazo, Jason Kinnell, Toby Bussa, Ann Fisher, Nathan Collamer

RISK: Health, Safety & Environment

The authors evaluate a mental modeling approach to studying differences between lay and expert comprehension of ecosystems.


Cardiovascular Disease—Risk Benefits Of Clean Fuel Technology And Policy: A Statistical Analysis, Paul Gallagher, William Lazarus, Hosein Shapouri, Roger Conway, Fantu Bachewe, Amelia Fischer 2016 Iowa State University

Cardiovascular Disease—Risk Benefits Of Clean Fuel Technology And Policy: A Statistical Analysis, Paul Gallagher, William Lazarus, Hosein Shapouri, Roger Conway, Fantu Bachewe, Amelia Fischer

Paul Gallagher

The hypothesis of this study is that there is a statistical relationship between the cardiovascular disease mortality rate and the intensity of fuel consumption (measured in gallons/square mile) at a particular location. We estimate cross-sectional regressions of the mortality rate due to cardiovascular disease against the intensity of fuel consumption using local data for the entire US, before the US Clean Air Act (CAA) in 1974 and after the most recent policy revisions in 2004. The cardiovascular disease rate improvement estimate suggests that up to 60 cardiovascular disease deaths per 100,000 residents are avoided in the largest urban ...


Some Long-Run Effects Of Growing Markets And Renewable Fuel Standards On Additives Markets And The Us Ethanol Industry, Paul W. Gallagher, Hosein Shapouri, Jeffrey Price, Guenter Schamel, Heather Brubaker 2016 Iowa State University

Some Long-Run Effects Of Growing Markets And Renewable Fuel Standards On Additives Markets And The Us Ethanol Industry, Paul W. Gallagher, Hosein Shapouri, Jeffrey Price, Guenter Schamel, Heather Brubaker

Paul Gallagher

The effects of likely regulatory and policy changes in the US gasoline and additives market are compared to a reference baseline. The baseline reflects existing EPA policies about fuel quality regulation and likely petroleum and gasoline expansions. The market and welfare effects are presented for implementing a renewable fuel standard; imposing a national ban on the additive MTBE; and removing the oxygen standard for reformulated fuel. Market and welfare estimates are based on adjusting product market demands and factor supplies. Product market and price analyses include quality-differentiated products, such as refinery gasoline, chemical additives and ethanol at the wholesale level ...


Contesting Legal Procedures Of Risk Management In Belgium: A Case Study, Tomke Lask 2016 University of New Hampshire

Contesting Legal Procedures Of Risk Management In Belgium: A Case Study, Tomke Lask

RISK: Health, Safety & Environment

Dr. Lask evaluates legal procedures for dealing with siting problems in Belgium in the context of an actual conflict, and discusses how citizens' dissatisfaction with governmental systems has resulted in increased involvement in environmental issues.


Modern Fair-Weather And Storm Sediment Transport Around Ship Island, Mississippi: Implications For Coastal Habitats And Restoration Efforts, Eve Rettew Eisemann 2016 University of Southern Mississippi

Modern Fair-Weather And Storm Sediment Transport Around Ship Island, Mississippi: Implications For Coastal Habitats And Restoration Efforts, Eve Rettew Eisemann

Master's Theses

The Mississippi – Alabama barrier island chain is experiencing accelerated sea level rise, decreased sediment supply, and frequent hurricane impacts. These three factors drive unprecedented rates of morphology change and ecosystem reduction. All islands in the chain have experienced land loss on the order of hectares per year since records began in the 1840s. In 1969, Hurricane Camille impacted as a Category 5, breaching Ship Island, and significantly reduced viable seagrass habitat. Hurricane Katrina impacted as a Category 3 in 2005, further widening Camille Cut. To better understand the sustainability of these important islands and the ecosystems they support, sediment transport ...


Artificial Recharge In The Las Vegas Valley: An Operational History, Michael Johnson, Erin Cole, Kay Brothers 2016 Selected Works

Artificial Recharge In The Las Vegas Valley: An Operational History, Michael Johnson, Erin Cole, Kay Brothers

Michael Johnson

Artificially recharging the Las Vegas Valley (Valley) ground-water system with treated Colorado River water is one water resource management option employed by the Las Vegas Valley Water District (District) to help meet future long-term and short-term peak water demands. The District began operation of an artificial ground-water recharge program in 1988 in order to bank water for future use and to slow declining water levels. Artificial recharge occurs in the winter months, typically from October to May, when there is excess capacity in the Southern Nevada Water System (SNWS), currently a 400 Million Gallon per Day (MGD) treatment and transmission ...


Expansion Of The Performance Capabilities Of The Usf Inhalation Challenge Chamber, Laura Riley 2016 University of South Florida

Expansion Of The Performance Capabilities Of The Usf Inhalation Challenge Chamber, Laura Riley

Graduate Theses and Dissertations

The purpose of this research was to evaluate the capability and performance of the University of South Florida’s (USF) Human Exposure Chamber (HEC) using aerosols in the thoracic range. The goals of this research were two-fold: to obtain an average particle size of 10 µm (thoracic-size range) inside the chamber during dust production and to test for evenness of dust concentration within the chamber. The USF HEC can be used for studies using gases and/or particulates. The chamber measurements are 4.16 ft x 2.67 ft x 6.75 ft, for a total volume of 75 ft3 ...


The Media, Risk Assessment And Numbers: They Don't Add Up, Sharon M. Friedman 2016 University of New Hampshire

The Media, Risk Assessment And Numbers: They Don't Add Up, Sharon M. Friedman

RISK: Health, Safety & Environment

Professor Friedman argues that, for risks to be reported accurately, journalism educators must help their students understand science, numbers and statistics.


Book Review, Angela V. Tafro 2016 University of New Hampshire

Book Review, Angela V. Tafro

RISK: Health, Safety & Environment

Review of: VICE PRESIDENT AL GORE, EARTH IN THE BALANCE: ECOLOGY AND THE HUMAN SPIRIT. (Plume 1993) [368 pp.] Acknowledgements, bibliography, figures, foreword, illustrations, index, notes. LC 92- 34013; ISBN 0-452-26935-0. [Paper $13.00. 375 Hudson Street, New York NY 10014.]


Book Review, Gianna Julian-Arnold 2016 University of New Hampshire

Book Review, Gianna Julian-Arnold

RISK: Health, Safety & Environment

Review of the book: ENVIRONMENTAL POLITICS: PUBLIC COSTS, PRIVATE REWARDS. (Michael S. Greve & Fred L. Smith, Jr. eds., Praeger 1992) [209 pp.] Acknowledgements, biographical information, figures, foreword by James Q. Wilson, index, notes, selected bibliography, tables. LC 91-44009, ISBN 0-275- 94238-4. [Paper $19.95, cloth $45.00. One Madison Avenue, New York N.Y. 10010.]


Schools Respond To Risk Management Programs For Asbestos, Lead In Drinking Water And Radon, Ann Fisher, Lauraine G. Chestnut, Ruth H. Chapman, Robert D. Rowe 2016 University of New Hampshire

Schools Respond To Risk Management Programs For Asbestos, Lead In Drinking Water And Radon, Ann Fisher, Lauraine G. Chestnut, Ruth H. Chapman, Robert D. Rowe

RISK: Health, Safety & Environment

Based on a study of the three EPA-initiated, public school risk management programs noted in the title, the authors find that state agency involvement is an important factor in the success of such programs. They also find, e.g., that school districts are justifiably reluctant to comply with tentative programs


Demonstrating Cover Crop Mixtures On Iowa Farmland: Management, Soil Health, And Water Quality Benefits, Mark Licht, Liz Juchems, Jacqueline Comito, Matt Helmers, Sarah Carlson 2016 Iowa State University

Demonstrating Cover Crop Mixtures On Iowa Farmland: Management, Soil Health, And Water Quality Benefits, Mark Licht, Liz Juchems, Jacqueline Comito, Matt Helmers, Sarah Carlson

Matthew J. Helmers

Cover crops are an important component of the Iowa Nutrient Reduction Strategy, which calls for a high level of adoption to reach the goals of reducing nitrate-nitrogen and phosphorus. Iowa landowners and farmers are increasingly seeing the value of single species cover crops and incorporating them into their cropping systems. However, in Iowa and the Upper Midwest, there is limited research on using cover crop mixtures.


Drop By Drop, 2016 Vocational Training Council

Drop By Drop

SIGNED: The Magazine of The Hong Kong Design Institute

In October 2013 Yale University professor Sheila Levrant de Bretteville began exploring the water's edge at four Hong Kong harbours with an interdisciplinary group of students from HKDI. The issues that captured their attention formed the basis of some vivid and emotionally compelling work.


Comparing The Effects Of General And Selective Culling On Chronic Wasting Disease (Cwd) Prevalence, Elliott J. Moran 2016 Unity College

Comparing The Effects Of General And Selective Culling On Chronic Wasting Disease (Cwd) Prevalence, Elliott J. Moran

Annual Symposium on Biomathematics and Ecology: Education and Research

No abstract provided.


Testing The Role Of Technical Information In Public Risk Perception, Branden B. Johnson, Peter M. Sandman, Paul Miller 2016 University of New Hampshire

Testing The Role Of Technical Information In Public Risk Perception, Branden B. Johnson, Peter M. Sandman, Paul Miller

RISK: Health, Safety & Environment

It is widely believed that more detail about health effects and likely exposure routes is apt to reduce citizens' concerns about low-probability Risks. The authors' study suggests that providing such detail may not be as useful as, e.g., addressing public concerns and keeping citizens current on officials' actions.


Aerosols Size Distribution Characteristics And Role Of Precipitation During Dust Storm Formation Over Saudi Arabia, Ashraf Farahat, Hesham el-Askary, A. Umran Dogan 2016 King Fahd University of Petroleum & Minerals

Aerosols Size Distribution Characteristics And Role Of Precipitation During Dust Storm Formation Over Saudi Arabia, Ashraf Farahat, Hesham El-Askary, A. Umran Dogan

Mathematics, Physics, and Computer Science Faculty Articles and Research

Kingdom of Saudi Arabia and the Gulf region are frequently exposed to major dust storms and anthropogenic emissions from rapidly growing industrial activities that affect aerosols optical and physical characteristics. This paper integrates observations from space-borne sensors namely MODIS and CALIPSO, together with AERONET ground observations to examine eight years aerosols characteristics during the (March–May) season of 2003 to 2010 over Saudi Arabia. Aerosol analysis from the interdependent data assessment show comparable aerosols characteristics over the eight year period with higher aerosols mean optical depths over enhanced dust load region, (46–50°E, 25–29°N), during March–May ...


In Continuity With The Past: Indigenous Environmentalism And Indian Christian Visions Of Flora, James Ponniah 2016 Department of Christian Studies, University of Madras, Chennai, India

In Continuity With The Past: Indigenous Environmentalism And Indian Christian Visions Of Flora, James Ponniah

Journal of Global Catholicism

This article considers whether Indian Christianity can be said to have a distinctive ecological vision. The first two parts of the article examine Christian environmentalism in two native forms of Indian Christianity: Tamil Christianity and Tribal Christianity. Continuing with the theme of conformity to the local culture—though of the elite—the third part of the article investigates how Christian Ashrams function as dynamic centers for ecological praxis. The last part of the article considers how contemporary Indian Christian communities can respond to the ecological challenges confronting them.


The Pinchot Wire: Private Cash, Public Lands - Why The Katahdin Woods And Waters National Monument Matters, Char Miller 2016 Pomona College

The Pinchot Wire: Private Cash, Public Lands - Why The Katahdin Woods And Waters National Monument Matters, Char Miller

Pomona Faculty Publications and Research

Here’s how President Obama celebrated the National Park Service’s 100th birthday: with the stroke of his pen, he established the Katahdin Woods and Waters National Monument in Maine, one of the most innovative initiatives in U.S. environmental history. That’s because the 87,500-acre park, which encompasses some of the Pine Tree State’s most remarkable forests and waterways, is a gift of the Quimby family and comes with a $40 million endowment, a private-public partnership without parallel.


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