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Articles 121 - 150 of 179
Full-Text Articles in Environmental Health and Protection
Comparative Analysis Of Two Biological Warfare Air Samplers Using Live Surrogate Agents, James C. Enderby
Comparative Analysis Of Two Biological Warfare Air Samplers Using Live Surrogate Agents, James C. Enderby
Theses and Dissertations
The United States Air Force has several high-volume biological air samplers, including the XMX/2L-MIL and the Biocapture 650. Limited information is available on either in terms of its collection of viruses and bacteria. However, previous research on the XMX/2L-MIL has determined that modifications to the secondary flow rate and the use of a virus preserving collection media may provide improved virus collection rates. In this thesis, these modifications were investigated to determine their impact on the collection of viral and bacterial aerosols. Additionally, relative collection rates were compared against those for the Biocapture 650. MS2 bacteriophage was the viral surrogate …
West Of Eden: Resource Wars And Nature-Cultures In The American West, Scout Calvert
West Of Eden: Resource Wars And Nature-Cultures In The American West, Scout Calvert
UNL Libraries: Faculty Publications
The richness and variety of the western landscape is what is at stake in hot political contests for the resources of the West: much of this public land is available to economic activity, including for mining, grazing, logging, and recreation. These uses threaten to outpace the land’s ability to renew these resources along with others, like air and water. Now in the first decade of the millennium with a new environmental awareness emerging partly from media coverage of global warming and peak oil, The American West at Risk offers a wide-ranging look at the degradation of the environment in the …
Brief 5: Enhancing Environmental Governance For Sustainable Development: Function-Oriented Options, John E. Scanlon
Brief 5: Enhancing Environmental Governance For Sustainable Development: Function-Oriented Options, John E. Scanlon
Governance and Sustainability Issue Brief Series
The 2012 United Nations Conference on Sustainable Development, Rio+20, is likely to determine the future direction of the institutional framework for sustainable development and for international environmental governance. As States move towards the ‘sharp end’ of their negotiations, it is important to analyse some of the risks and benefits of the identified options for the reform of international environmental governance and offer pragmatic ideas on how to make best use of existing resources and structures.
Nutrient And Fecal Microbe Assessment Of The Water Quality Of Tates Creek, Madison County, Kentucky, Walter S. Borowski, Kristopher H. Carroll
Nutrient And Fecal Microbe Assessment Of The Water Quality Of Tates Creek, Madison County, Kentucky, Walter S. Borowski, Kristopher H. Carroll
EKU Faculty and Staff Scholarship
Tates Creek is a significant tributary to the Kentucky River that has shown high levels of microbial and nutrient pollution in the past (Kentucky River Watershed Watch). We sampled the waters of Tates Creek more comprehensively by collecting stream water at 25 stations along its 13-mile length from its headwaters to the Kentucky River. Most samples were collected at the confluence of major tributaries to also access the water quality of tributary streams. Samples were collected four times between May and August 2011 during dry periods as well as immediately after a rainfall event. We measured ammonium (NH4+ …
Research, Monitoring, Assessment And Development Plan 2011 – 2012, Department Of Fisheries
Research, Monitoring, Assessment And Development Plan 2011 – 2012, Department Of Fisheries
Fisheries occasional publications
No abstract provided.
Physicochemical And Microbiological Quality Of Harvested Rainwater From An Agricultural Installation In Ireland, Sean O'Hogain, Liam Mccarton, Niamh Mcintyre, Jenny Pender, Anna Reid
Physicochemical And Microbiological Quality Of Harvested Rainwater From An Agricultural Installation In Ireland, Sean O'Hogain, Liam Mccarton, Niamh Mcintyre, Jenny Pender, Anna Reid
Articles
Members of DTC Research Group. Dublin Institute of Technology was commissioned in 2005 by the Department of Environment, Heritage and Local Government in Ireland to assess the feasibility of utilising rainwater to replace treated mains water for nonpotable uses. The project involved the design, installation, commissioning and monitoring of rainwater harvesting on a farm. Two monitoring programmes, Regime 1 and Regime 2, examined the physicochemical and microbiological quality of the harvested rainwater. Samples were taken monthly and tested. Regime 1 analysis showed that the microbiological quality of the rainwater from the site did not comply with the requirements of the …
Global Monthly Water Scarcity: Blue Water Footprints Versus Blue Water Availability, Arjen Y. Hoekstra, Mesfin Mekonnen, Ashok K. Chapagain, Ruth E. Mathews, Brian D. Richter
Global Monthly Water Scarcity: Blue Water Footprints Versus Blue Water Availability, Arjen Y. Hoekstra, Mesfin Mekonnen, Ashok K. Chapagain, Ruth E. Mathews, Brian D. Richter
Daugherty Water for Food Global Institute: Faculty Publications
Freshwater scarcity is a growing concern, placing considerable importance on the accuracy of indicators used to characterize and map water scarcity worldwide. We improve upon past efforts by using estimates of blue water footprints (consumptive use of ground- and surface water flows) rather than water withdrawals, accounting for the flows needed to sustain critical ecological functions and by considering monthly rather than annual values. We analyzed 405 river basins for the period 1996–2005. In 201 basins with 2.67 billion inhabitants there was severe water scarcity during at least one month of the year. The ecological and economic consequences of increasing …
Bacterial Source Tracking Of E. Coli In A Constructed Wetland, Rose M. Martin
Bacterial Source Tracking Of E. Coli In A Constructed Wetland, Rose M. Martin
Master's Theses
Bacterial source tracking was used to identify sources of fecal contamination in a constructed wetland. Nucleotide sequence differences in the Escherichia coli malate dehydrogenase (mdh) gene were used to distinguish between strains isolated from pigeon and cattle feces. Fourteen E. coli isolates were taken from cattle and pigeon fecal samples and sixteen E. coli isolates were taken from wetland water samples. A region of the E. coli mdh gene was amplified via PCR and sequenced. Twelve distinct sequences were obtained. Water samples indicated the presence of both pigeon and cattle fecal contamination in the wetland. Six sequences distinct …
The Water Footprint Of Humanity, Arjen Y. Hoekstra, Mesfin Mekonnen
The Water Footprint Of Humanity, Arjen Y. Hoekstra, Mesfin Mekonnen
Daugherty Water for Food Global Institute: Faculty Publications
This study quantifies and maps the water footprint (WF) of humanity at a high spatial resolution. It reports on consumptive use of rainwater (green WF) and ground and surface water (blue WF) and volumes of water polluted (gray WF). Water footprints are estimated per nation from both a production and consumption perspective. International virtual water flows are estimated based on trade in agricultural and industrial commodities. The global annual average WF in the period 1996–2005 was 9,087 Gm3 ∕y (74% green, 11% blue, 15% gray). Agricultural production contributes 92%. About one-fifth of the global WF relates to production for export. …
Project Gaya: A Study Abroad Program Design For Fundación Operación Gaya Internacional, Lauren E. Johanson
Project Gaya: A Study Abroad Program Design For Fundación Operación Gaya Internacional, Lauren E. Johanson
Capstone Collection
Since 2008 Fundación Operación GAYA Internacional, a Costa Rican NGO has provided youth training and development programs to local youth in Costa Rica, empowering young people to be “architects” in the development of their own communities and to take the lead in creating a world that is more peaceful and just. Through the implementation of Project GAYA, the foundation will expand its programming to international youth for the first time.
The proposed program offers a comprehensive program design for a short-term study abroad experience for U.S. high school students to Costa Rica. Students will engage in experiential learning and critical …
Brief 4: Lessons From The Multilateral Trading System For Reforming The Architecture Of The International Environmental Regime, Thomas Cottier, Manfred Elsig, Judith Wehrli
Brief 4: Lessons From The Multilateral Trading System For Reforming The Architecture Of The International Environmental Regime, Thomas Cottier, Manfred Elsig, Judith Wehrli
Governance and Sustainability Issue Brief Series
Recent studies on environmental regimes suggest that important lessons and policy recommendations may be drawn from the functioning of the multilateral trading regime. This brief compares the needs and goals of the trade and environment regimes, and discusses how insights from over sixty years of experience of the multilateral trading system might provide ideas for redesigning the architecture of the international environmental regime. It further calls for a better dialogue and improved complementarities between the two fields in order to enhance coherence within international law.
Exploring The Effects Of Aperture Size, Aperture Variability And Matrix Properties On Biocolloid Retention In A Single, Saturated Fracture, Margaret Burke
Exploring The Effects Of Aperture Size, Aperture Variability And Matrix Properties On Biocolloid Retention In A Single, Saturated Fracture, Margaret Burke
Sarah E Dickson
No abstract provided.
Agenda: Air Quality Impacts From Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Air Quality Impacts From Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center
Air Quality Impacts from Oil and Gas Development (January 27)
Oil and gas development and hydraulic fracturing have received enormous attention over the past few years, and most of that attention has focused on the potential impacts of such development on water quality. However, the potential impacts on air quality from oil and gas development have received far less public and media attention and discussion. This two-hour program will assess the current scientific knowledge, regulatory requirements and policies regarding the impacts on air quality from oil and gas development and will address current initiatives at the state and national levels to further regulate and control those impacts.
Slides: Air Monitoring And Litigation Update, John Jacus
Slides: Air Monitoring And Litigation Update, John Jacus
Air Quality Impacts from Oil and Gas Development (January 27)
Presenter: John Jacus, Partner, Davis Graham & Stubbs LLP, reviews recent litigation aimed at oil and gas development activities with respect to air emissions impacts, and also several recent and ongoing studies and ambient monitoring efforts focused upon air emissions from oil and gas activities
23 slides
Slides: Hydrofracking: Air Issues And Community Exposure, Debra A. Kaden
Slides: Hydrofracking: Air Issues And Community Exposure, Debra A. Kaden
Air Quality Impacts from Oil and Gas Development (January 27)
Presenter: Debra Kaden, Ph.D., Toxicologist, ENVIRON International Corporation, discusses air concentrations of chemicals of potential health concern surrounding oil and gas development activities, as well as temporal and spatial patterns of these chemicals in the ambient environment. Such information is necessary to evaluate possible health impacts of the drilling process on air in surrounding communities.
19 slides
Slides: Unconventional Gas And Oil – Potential Air Emissions, John Imse
Slides: Unconventional Gas And Oil – Potential Air Emissions, John Imse
Air Quality Impacts from Oil and Gas Development (January 27)
Presenter: John Imse, Hydrogeologist, ENVIRON International Corporation presents an overview of the current methods for developing a shale play and the typical site operations
10 slides
Slides: Air Quality - Oil And Gas Development, Paul R. Tourangeau
Slides: Air Quality - Oil And Gas Development, Paul R. Tourangeau
Air Quality Impacts from Oil and Gas Development (January 27)
Presenter: Paul Tourangeau, Assistant General Counsel, DCP Midstream, LP and former Director, Colorado Air Pollution Control Division, addresses regulatory requirements and policies related to air emissions from the oil and gas sector, including recent and current initiatives at the state and federal level
8 slides
A Global Assessment Of The Water Footprint Of Farm Animal Products, Mesfin Mekonnen, Arjen Y. Hoekstra
A Global Assessment Of The Water Footprint Of Farm Animal Products, Mesfin Mekonnen, Arjen Y. Hoekstra
Daugherty Water for Food Global Institute: Faculty Publications
The increase in the consumption of animal products is likely to put further pressure on the world’s freshwater resources. This paper provides a comprehensive account of the water footprint of animal products, considering different production systems and feed composition per animal type and country. Nearly one-third of the total water footprint of agriculture in the world is related to the production of animal products. The water footprint of any animal product is larger than the water footprint of crop products with equivalent nutritional value. The average water footprint per calorie for beef is 20 times larger than for cereals and …
Take Pride In America Phase Iii: Quarterly Progress Report, Period Covering October 25, 2011-January 24, 2012, Margaret N. Rees
Take Pride In America Phase Iii: Quarterly Progress Report, Period Covering October 25, 2011-January 24, 2012, Margaret N. Rees
Anti-littering Programs
- The GIS database was shared with the Mojave Desert Ecosystem Project.
- Total attendance during Hector’s Helpers meetings exceeded 250.
- America Recycles Day involved over 25,000 people.
- Recruiting procedures were developed for the volunteer monitoring program.
The University of Nevada Las Vegas Public Lands Institute (PLI) has designed the Take Pride in America (TPIA) Phase III work plan based on the strategic plan developed by the Southern Nevada Agency Partnership (SNAP) anti-litter and desert dumping team during Phase II of the program.
Effects Of Chemical And Mechanical Weathering Processes On The Degradation Of Plastic Debris On Marine Beaches, David A. Cooper
Effects Of Chemical And Mechanical Weathering Processes On The Degradation Of Plastic Debris On Marine Beaches, David A. Cooper
Electronic Thesis and Dissertation Repository
Plastics are an integral part of everyday life, and the use of plastic products for consumer goods, food packaging, recreational and commercial fishing and medical and sanitary applications continues to increase. The durability, low cost, light weight and hydrophobic nature of plastic make it a desirable material for numerous applications; however, these same characteristics make plastic debris in natural environments a pervasive problem. Increases in plastic use and low economic incentive for recovery, result in accumulation of debris in marine environments. Degradation of plastics through chemical weathering occurs in the open ocean or along shorelines where polymers are exposed to …
Agenda: Drawing The Blueprint For A Sustainable Natural Gas Future, University Of Colorado At Denver. Wirth Chair In Environmental And Community Development Policy, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project
Agenda: Drawing The Blueprint For A Sustainable Natural Gas Future, University Of Colorado At Denver. Wirth Chair In Environmental And Community Development Policy, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project
Drawing the Blueprint for a Sustainable Natural Gas Future (January 18)
A stakeholder-led forum discussing the key topics affecting natural gas as a safe and sustainable energy resource. Participants learned about the current research and related resources at Colorado’s three research universities and participated in designing future research needs.
Slides: Jisea Natural Gas Study: Potential U.S. Electric Power Futures, Jeffrey Logan
Slides: Jisea Natural Gas Study: Potential U.S. Electric Power Futures, Jeffrey Logan
Drawing the Blueprint for a Sustainable Natural Gas Future (January 18)
Presenter: Jeffrey Logan, Denver Museum of Nature and Science
4 slides
Slides: Current And Proposed Research Activities Addressing Health, Environmental, Economic, And Political Issues Related To Natural Gas Development, University Of Colorado. School Of Public Health. Department Of Environmental And Occupational Health
Slides: Current And Proposed Research Activities Addressing Health, Environmental, Economic, And Political Issues Related To Natural Gas Development, University Of Colorado. School Of Public Health. Department Of Environmental And Occupational Health
Drawing the Blueprint for a Sustainable Natural Gas Future (January 18)
Presenter: Department of Environmental and Occupational Health, University of Colorado School of Public Health
20 slides
Slides: Natural Gas: Game Changer Or Runner Left On Base? Working To Get It Right In Co!, Gary Graham
Slides: Natural Gas: Game Changer Or Runner Left On Base? Working To Get It Right In Co!, Gary Graham
Drawing the Blueprint for a Sustainable Natural Gas Future (January 18)
Presenter: Dr. Gary Graham, Director, Lands Program, Western Resource Advocates
21 slides
Slides: Drawing The Blueprint For A Sustainable Natural Gas Future, Mark K. Boling
Slides: Drawing The Blueprint For A Sustainable Natural Gas Future, Mark K. Boling
Drawing the Blueprint for a Sustainable Natural Gas Future (January 18)
Presenter: Mark. K. Boling, Executive Vice-President and General Counsel, Southwestern Energy
23 slides
Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering October 6, 2011-January 5, 2012, Margaret N. Rees
Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering October 6, 2011-January 5, 2012, Margaret N. Rees
Anti-littering Programs
- A total of 11 clean-up events were conducted this quarter.
- The Interagency Anti-Litter Team met twice this quarter.
- The redesign of the website continued.
- A draft Judicial System Analysis report was presented to the Interagency Law Enforcement Team for review. The Executive Director requested that the Law Enforcement Team provide written comments to include within the Judicial Analysis. Once these comments are incorporated into the report, it will be submitted in compliance with the task agreement.
Development And Evaluation Of A Quantitative Pcr Assay Targeting Sandhill Crane (Grus Canadensis) Fecal Pollution, Hodon Ryu, Jingrang Lu, Jason Vogel, Michael Elk, Felipe Chávez-Ramírez, Nicholas Ashbolt, Jorge Santo Domingo
Development And Evaluation Of A Quantitative Pcr Assay Targeting Sandhill Crane (Grus Canadensis) Fecal Pollution, Hodon Ryu, Jingrang Lu, Jason Vogel, Michael Elk, Felipe Chávez-Ramírez, Nicholas Ashbolt, Jorge Santo Domingo
United States Environmental Protection Agency: Staff Publications
While the microbial water quality in the Platte River is seasonally impacted by excreta from migrating cranes, there are no methods available to study crane fecal contamination. Here we characterized microbial populations in crane feces using phylogenetic analysis of 16S rRNA gene fecal clone libraries. Using these sequences, a novel crane quantitative PCR (Crane1) assay was developed, and its applicability as a microbial source tracking (MST) assay was evaluated by determining its host specificity and detection ability in environmental waters. Bacteria from crane excreta were dominated by bacilli and proteobacteria, with a notable paucity of sequences homologous to Bacteroidetes and …
Calcium Montmorillonite Clay Reduces Urinary Biomarkers Of Fumonisin B₁ Exposure In Rats And Humans, Abraham Robinson, Natalie M. Johnson, A. Strey, John F. Taylor, Alicia Marroquin-Cardona, N. J. Mitchell, Evans Afriyie-Gyawu, Nii-Ayi Ankrah, Jonathan H. Williams, Jia-Sheng Wang, Pauline E. Jolly, R. J. Nachman, Timothy D. Phillips
Calcium Montmorillonite Clay Reduces Urinary Biomarkers Of Fumonisin B₁ Exposure In Rats And Humans, Abraham Robinson, Natalie M. Johnson, A. Strey, John F. Taylor, Alicia Marroquin-Cardona, N. J. Mitchell, Evans Afriyie-Gyawu, Nii-Ayi Ankrah, Jonathan H. Williams, Jia-Sheng Wang, Pauline E. Jolly, R. J. Nachman, Timothy D. Phillips
Environmental Health Sciences Faculty Publications
Fumonisin B1 (FB1) is often a co-contaminant with aflatoxin (AF) in grains and may enhance AF’s carcinogenicity by acting as a cancer promoter. Calcium montmorillonite (i.e. NovaSil, NS) is a possible dietary intervention to help decrease chronic aflatoxin exposure where populations are at risk. Previous studies show that an oral dose of NS clay was able to reduce AF exposure in a Ghanaian population. In vitro analyses from our laboratory indicated that FB1 (like aflatoxin) could also be sorbed onto the surfaces of NS. Hence, our objectives were to evaluate the efficacy of NS clay to reduce urinary FB1 in …
‘Looking After Country Two-Ways’: Insights Into Indigenous Community-Based Conservation From The Southern Tanami, Karissa Preuss, Madeline Dixon
‘Looking After Country Two-Ways’: Insights Into Indigenous Community-Based Conservation From The Southern Tanami, Karissa Preuss, Madeline Dixon
Aboriginal Policy Research Consortium International (APRCi)
This paper offers insights and practical lessons for a ‘two-way’ approach to combining Indigenous and non-Indigenous ecological knowledge in environmental planning and management. It is based on the experience of developing an Indigenous Protected Area to conserve 10 million hectares of biologically and culturally significant land in the Southern Tanami region of Central Australia
Brief 3: Clustering Assessment: Enhancing Synergies Among Multilateral Environmental Agreements, Judith Wehrli
Brief 3: Clustering Assessment: Enhancing Synergies Among Multilateral Environmental Agreements, Judith Wehrli
Governance and Sustainability Issue Brief Series
Against the background of a widely fragmented and diluted international environmental governance architecture, different reform options are currently being discussed. This issue brief considers whether streamlining international environmental regimes by grouping or ‘clustering’ international agreements could improve effectiveness and efficiency. It outlines the general idea of the clustering approach, draws lessons from the chemicals and waste cluster and examines the implications and potentials of clustering multilateral environmental agreements.