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Articles 2311 - 2340 of 2545

Full-Text Articles in Environmental Indicators and Impact Assessment

Las Carreteras Ya No Cantan: Una Investigación Sobre La Riqueza Y Diversidad De Especies De Anfibios En Sitios Sensibles A Lado Del Eje Vial N°4 En La Reserva Biológica Tapichalaca, Harrison Goldspiel Apr 2012

Las Carreteras Ya No Cantan: Una Investigación Sobre La Riqueza Y Diversidad De Especies De Anfibios En Sitios Sensibles A Lado Del Eje Vial N°4 En La Reserva Biológica Tapichalaca, Harrison Goldspiel

Independent Study Project (ISP) Collection

Tapichalaca Biological Reserve (RBT), located in Zamora Chinchipe Province in southern Ecuador, is a zone with high biodiversity and endemism. Although famous for the Jocotoco antpitta (Grallaria ridgelyi), the reserve is very rich in anphibians, especially frogs of the genus Pristimantis. RBT hosts at least 29 species of amphibians, including the new and endemic Hyloscirtust tapichalaca and 25 Pristimantis species (Meza-R. et al. 2008). RBT faces various threats, such as climate change, farms, and the exploitation of palm trees. One pertinent threat is Eje Vial N°4, a main road that passes through the reserve. This study investigated …


The Effects Of Organizational Structure On Sustainability Report Compliance, Kurt E. Mink Apr 2012

The Effects Of Organizational Structure On Sustainability Report Compliance, Kurt E. Mink

Purdue Polytechnic Masters Theses

The purpose of this qualitative research was to determine the organizational characteristics that contribute to developing sustainability reports with GRI A+ application levels. Judgment sampling was used to select organizations that received an A+ GRI application level in 2010. These organizations were then surveyed using a fifteen-question survey, which emulated the semi-structured interview questions utilized by Farneti and Guthrie (2007). The survey was disseminated to 107 organizations and the responses were collated and analyzed to determine important themes relevant to this research study. The results of this research study suggest a relationship between an organization’s genuine commitment to sustainability by …


Research, Monitoring, Assessment And Development Plan 2011 – 2012, Department Of Fisheries Mar 2012

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 Mar 2012

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 …


2012 Nebraska Groundwater Quality Monitoring Report Jan 2012

2012 Nebraska Groundwater Quality Monitoring Report

Nebraska Department of Environmental Quality: Reports

The 2001 Nebraska Legislature passed LB329 (Neb. Rev. Stat. §46-1304) which, in part, directed the Nebraska Department of Environmental Quality (NDEQ) to report on groundwater quality monitoring in Nebraska. Reports have been issued annually since December 2001. The text of the statute applicable to this report follows: “The Department of Environmental Quality shall prepare a report outlining the extent of ground water quality monitoring conducted by natural resources districts during the preceding calendar year. The department shall analyze the data collected for the purpose of determining whether or not ground water quality is degrading or improving and shall present the …


2012 Nebraska Water Monitoring Programs Report, Marty Link, Mike Archer Jan 2012

2012 Nebraska Water Monitoring Programs Report, Marty Link, Mike Archer

Nebraska Department of Environmental Quality: Reports

The following Nebraska Department of Environmental Quality staff have contributed to this report with their photos, maps, numbers, words, and editing. Their efforts are greatly appreciated and gratefully acknowledged here: Mike Archer, Ken Bazata, Dave Bubb, Ryan Chapman, Jason Garber, Patrick Hartman, Tom Heatherly, Dave Ihrie, Dan Inman, Greg Michl, Will Myers, Patrick O’Brien (NARD), Brad Routt, and Dave Schumacher.


Using Image Processing Techniques To Estimate The Air Quality, Ernesto Zamora Jan 2012

Using Image Processing Techniques To Estimate The Air Quality, Ernesto Zamora

McNair Poster Presentations

The color of the sky varies depending on the composition of the air. The particles lingering in the atmosphere scatter the components of the light based on their wavelength in relation to particle size. Thus, the color of the sky depends on what wavelengths are scattered while the light travels through our atmosphere.

By analyzing the color of the sky using computer image processing, it is possible to determine the quality of the air in an area. It is possible to classify pictures of the sky into clean or polluted air and have a computer estimate the category any other …


The Monetary Effects Of Deer Damage On The Environment, Scott Mendlik Dec 2011

The Monetary Effects Of Deer Damage On The Environment, Scott Mendlik

Department of Environmental Studies: Undergraduate Student Theses

The focus of my study was deer damage that occurred to crops and trees in Northeast Nebraska, around Wisner in Cuming County. I collected data from corn fields and harvest yields to determine the monetary losses landowners receive to deer damage. The damage can be anywhere from minimal to significant and affects each person differently. I study used test plots to collect data for an average damage per acre, and variable-sized plots to accurately estimate the level of damage occurred. I also incorporated data from tree nurseries to estimate the damage tree farmers and landowners would have when planting new …


Environmental Impact Of The Three Kids Mine Tailings, Henderson, Nv, Ji Hye Park Dec 2011

Environmental Impact Of The Three Kids Mine Tailings, Henderson, Nv, Ji Hye Park

UNLV Theses, Dissertations, Professional Papers, and Capstones

This research focused on the distribution of the Three Kids Mine tailings in surface soils in and around the mine in Henderson, Nevada. It is situated next to the communities of Calico Ridge and Lake Las Vegas Resort, and, just the west of the Lake Mead Recreation area. Even though the mine has been inactive for almost 50 years (1917-1961), tailing piles and other sources of contamination on the mine are currently exposed to the atmosphere. In this study, surface soil samples were collected along eight transects emanating from the center of Three Kids Mine tailing piles up to five …


Nutrient And Fecal Microbe Assessment Of The Water Quality Of Tates Creek, Madison County, Kentucky, Krisopher H. Carroll, Walter S. Borowski Nov 2011

Nutrient And Fecal Microbe Assessment Of The Water Quality Of Tates Creek, Madison County, Kentucky, Krisopher H. Carroll, Walter S. Borowski

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. We sampled the waters of Tates Creek comprehensively by occupying 25 stations along its 13-mile length, collecting stream water at the confluence of major tributaries from its headwaters to the Kentucky River. Samples were collected four times between May and August 2011 during dry periods as well as immediately after rainfall events.

We measured ammonium (NH4+), nitrate (NO3-) and phosphate (PO4-) concentrations using colorimetry. Microbial samples were measured for total coliform …


El Agua O El Oro: La Lucha Por Quimsacocha, Laura Moulton Oct 2011

El Agua O El Oro: La Lucha Por Quimsacocha, Laura Moulton

Independent Study Project (ISP) Collection

El 2 de octubre, del 2011, en la comunidad de Victoria del Portete, los usuarios del Sistema Comunitario de Agua de Tarqui y Victoria del Portete participaron en una consulta popular para decidir si están de acuerdo o no con el proyecto minero de oro de Quimsacocha. A través de esta consulta, se dio a conocer la voluntad de la gente. De los 1.047 votos, 958 se pronunciaron “No” a la minería a gran escala, siendo el 92,38% del total. “Con la consulta, dijimos no al oro, si al agua,”[1] dijo Fanny Paute, habitante de Tarqui. Para la gente …


Effects Of Mechanical Ventilation Rates On Indoor Formaldehyde Levels, Thuy Nguyen, Henry Willem Aug 2011

Effects Of Mechanical Ventilation Rates On Indoor Formaldehyde Levels, Thuy Nguyen, Henry Willem

STAR Program Research Presentations

Airtight construction of energy efficient homes increasingly limits the indoor and outdoor air exchange. Consequently, Volatile Organic Compounds (VOC) and Formaldehyde can accumulate to toxic levels. Formaldehyde is an eye and respiratory irritant suspected as one of the inducing agents of asthma. Exposure to Formaldehyde has been linked to nasopharyngeal cancer and leukemia. This study evaluated the effects of increasing ventilation rates through Energy Recovery Ventilator (ERV) in a new home. The study objective is to determine the effects of increasing ventilation rates on the concentrations of Formaldehyde and the associated emission rates. The results indicate that increasing ventilation rates …


Assessing A Combined Theories Approach To Climate Change Communication, Ted Greenhalgh Aug 2011

Assessing A Combined Theories Approach To Climate Change Communication, Ted Greenhalgh

UNLV Theses, Dissertations, Professional Papers, and Capstones

This research examines the complexities of communicating climate change risk information and the underlying individual attitudes and message content that affect message reception. Using climate change messages incorporating fear appeals and normative information subject's reactions to the messages were evaluated using the Theory of Planned Behavior model. The study found that fear appeals did increase behavioral intention to adopt a lower carbon lifestyle among test group subjects. The Theory of Planned Behavior model showed that attitudes and self-efficacy were significant predictors of the behavioral intent to adopt a lower carbon lifestyle, while community norms were only marginally predictive. However, not …


Comparison Of Turbine Engine Test Cell Airborne Nanoparticle Count Versus Ambient Background Particle Count, Ryne Larowe Jul 2011

Comparison Of Turbine Engine Test Cell Airborne Nanoparticle Count Versus Ambient Background Particle Count, Ryne Larowe

Purdue Polytechnic Directed Projects

With the establishment of the National Test Facility for Aerospace Fuels and Propulsion at Purdue University in October of 2009, new equipment has been acquired to measure and classify exhaust emissions. This facility utilizes the Honeywell F109 turbofan and Pratt & Whitney PT-6 turboprop engine test cells to analyze the emissions and engine operation of new alternative aviation fuels. This observational study investigates what, if any difference there is in the amount of ambient residual Particulate Matter (PM) in the turbofan engine test cell when compared to ambient particle count associated with the Purdue University Airport (KLAF) property. The project …


University-Community Partnerships For Environmental Safety And Sustainability, John W. Vick, Carol Norton Jul 2011

University-Community Partnerships For Environmental Safety And Sustainability, John W. Vick, Carol Norton

Education for Sustainability Summer Institute

No abstract provided.


Education For Sustainability Summer Institute 2011 Conference Program Jul 2011

Education For Sustainability Summer Institute 2011 Conference Program

Education for Sustainability Summer Institute

EFSSI 2011 is designed for pre-K-12 teachers, university faculty and staff, non-formal educators, and administrators. Come to learn about successful program models and practical strategies for integrating sustainability into classes, schools, and districts.

Click on the Download button for full Conference Program.


Variable Renewable Energy In Modeling Climate Change Mitigation Scenarios, Falko Ueckerdt, Robert J. Brecha, Gunnar Luderer, Patrick Sullivan, Eva Schmid, Nico Bauer, Diana Böttger Jul 2011

Variable Renewable Energy In Modeling Climate Change Mitigation Scenarios, Falko Ueckerdt, Robert J. Brecha, Gunnar Luderer, Patrick Sullivan, Eva Schmid, Nico Bauer, Diana Böttger

Physics Faculty Publications

This paper addresses the issue of how to account for short‐term temporal variability of renewable energy sources and power demand in long‐term climate change mitigation scenarios in energy‐economic models. An approach that captures in a stylized way the major challenges to the integration of variable renewable energy sources into power systems has been developed. As a first application this approach has been introduced to REMIND‐D, a hybrid energy‐economy model of Germany. An approximation of the residual load duration curve is implemented. The approximating function endogenously changes depending on the penetration and mix of variable renewable power. The approach can thus …


Logistic Curves, Extraction Costs And The Effective Size Of Oil Resources, Robert J. Brecha Jun 2011

Logistic Curves, Extraction Costs And The Effective Size Of Oil Resources, Robert J. Brecha

Physics Faculty Publications

The size of potential fossil fuel resources is an issue of perennial interest and controversy. Fundamentally, there appears to be a conflict in interpretation of available data for both past and future extraction histories. As fossil-fuel prices rose dramatically over the past several years, the question of resources once again became acute. In this paper we concentrate on conventional and non-conventional oil resources and make four main points, with the overarching theme that one can determine an effective oil resource that represents significantly less availability for consumption than usually posited by tallying resources in place.

First, looking at oil production …


Ecotourism In Costa Rica: Environmental Impacts And Management, Emily Mckeone May 2011

Ecotourism In Costa Rica: Environmental Impacts And Management, Emily Mckeone

Department of Environmental Studies: Undergraduate Student Theses

Globally we are witnessing growing environmental destruction, particularly to the natural resource bases of underdeveloped countries. If ecotourism can generate profits for local economies, while protecting and conserving the natural resource base of that community, it could be a strong alternative for numerous countries. Evidence suggests that the ecotourism industry has been expanding at a rapid rate in recent decades (Dasenbrock 2002). It is important to understand the positive and negative ecological impacts of the industry as this rapid growth rate continues.

The main objective of this study is to highlight the strengths and weaknesses of the ecotourism industry in …


Spatial Patterns Of Drought Triggers And Indicators, Joseph P. Robine May 2011

Spatial Patterns Of Drought Triggers And Indicators, Joseph P. Robine

Department of Environmental Studies: Undergraduate Student Theses

Drought is a reoccurring phenomenon with widespread economic, social, and environmental impacts. Unlike other disasters, a drought cannot be easily detected. In addition, droughts are widespread and develop slowly over time making it difficult to detect its onset and monitor its severity and impacts. To assist in monitoring the severity and spatial extent of droughts, drought managers frequently use indicators and triggers. Drought indicators are meteorological or hydrological variables or indices that quantify or describe the level of drought severity. A drought trigger is a value of an indicator that initiates management and response actions. Despite the clear importance of …


Effectiveness Of Earthtec ® On Killing Invasive Quagga Mussels (Dreissena Rostriformis Bugenis) And Preventing Their Colonization In The Western U.S., Ashlie Watters May 2011

Effectiveness Of Earthtec ® On Killing Invasive Quagga Mussels (Dreissena Rostriformis Bugenis) And Preventing Their Colonization In The Western U.S., Ashlie Watters

UNLV Theses, Dissertations, Professional Papers, and Capstones

Dreissena rostriformis bugensis, an invasive species, also known as the quagga mussel, was discovered in Lake Mead, NV in January of 2007. In the four years since detection, quagga mussels have created tremendous economical, ecological, and human health impacts. The mussels clog pipes, ruin boat motors, and damage recreational equipment, and once established in the lake, routine maintenance is necessary to avoid further damage. Because of quagga mussels' high fecundity, planktonic veliger stage, and ability to attach to substrates with byssal threads, they have easily and swiftly spread to other lakes and reservoirs in the Lower Colorado River Basin. …


Colonization And Decontamination Of Quagga Mussels In The Western United States: Monitoring Veligers In Lake Mead And Field Testing In The Effects Of Hot-Water Spray As A Means Of Watercraft Decontamination, Sean Robin Comeau May 2011

Colonization And Decontamination Of Quagga Mussels In The Western United States: Monitoring Veligers In Lake Mead And Field Testing In The Effects Of Hot-Water Spray As A Means Of Watercraft Decontamination, Sean Robin Comeau

UNLV Theses, Dissertations, Professional Papers, and Capstones

The introduction and establishment of aquatic invasive species (AIS) is one of the top causes of global biodiversity loss and ecological change, and is also financially costly for taxpayers and agencies managing protected areas. This is especially true regarding the nationwide spread of dreissenid mussels to various bodies of freshwater. The discovery of invasive quagga mussels (Dreissena rostriformis bugensis) in Lake Mead on January 6, 2007 has changed the popular recreation area into a potential vector of the destructive AIS. This location could allow for an increased spread of these dressenid species to uninfested bodies of water in the western …


Accumulation Of Polonium-210 In Different Species Of Fish In Lake Mead, Suraj Ghevarghese John, Shungmugam Nallaperumal, Vernon Hodge Apr 2011

Accumulation Of Polonium-210 In Different Species Of Fish In Lake Mead, Suraj Ghevarghese John, Shungmugam Nallaperumal, Vernon Hodge

Festival of Communities: UG Symposium (Posters)

Discovered by Pierre Curie and Marie Skłodowska-Curie in 1898, polonium is a chemical element with an atomic number of 84. This rare naturally occurring radioactive element is chemically similar to bismuth and tellurium, and forms in uranium ores. Polonium-210 is an naturally occurring radioactive element with a half-life of 138.376 days(1). This element is found in trace amounts in most organisms. Our research is focused on the accumulation of polonium-210 in fish that occupy in Lake Mead.

The sample species is chosen based on varying lake stratification (layers of the lake). This gives us a good idea of the difference …


Seawalls In Samoa: A Look At Their Environmental, Social And Economic Implications, Sawyer Lawson Apr 2011

Seawalls In Samoa: A Look At Their Environmental, Social And Economic Implications, Sawyer Lawson

Independent Study Project (ISP) Collection

This study concerns the environmental, economic and social implications of seawalls in Samoa. Information for this study was gathered using a combination of secondary sources and primary sources including interviews, surveys and participant observation. Given the cultural and economic importance of Samoa’s coastline and the fact that seawalls, which already occupy much of Samoa’s coast, are becoming more abundant, it is important to understand the implications of building them. The researcher found that partially due to climate change and sand mining, Samoa’s coastline has become increasingly threatened by erosion and coastal retreat. Seawalls are in many cases the fastest and …


Riesgo De Exposición A Los Plaguicidas En Familias Con Niños Menores De 6 Años De Azapa Y Lluta, Andrew Wilbur Apr 2011

Riesgo De Exposición A Los Plaguicidas En Familias Con Niños Menores De 6 Años De Azapa Y Lluta, Andrew Wilbur

Independent Study Project (ISP) Collection

This study aims to characterize the risk of pesticide exposure for children under the age of 6 who live in the rural, agricultural communities of the Azapa and Lluta valleys in Region Arica and Parinacota in northern Chile. To achieve this objective, it seeks to understand current perceptions held by parents or guardians with respect to risk of pesticide exposure within their families and identify practices and living circumstances that contribute to this risk. In environmental health, children are an especially vulnerable population as a result of their distinct characteristics. Their exploratory behavior and naivety contribute to their risk of …


Concentration Of Heavy Metals In The Waters And Surface Sediments Of Wilgreen Lake, Madison County, Kentucky: An Evaluation Of Plausible Sources, Chad Von Gruenigen, Walter S. Borowski Mar 2011

Concentration Of Heavy Metals In The Waters And Surface Sediments Of Wilgreen Lake, Madison County, Kentucky: An Evaluation Of Plausible Sources, Chad Von Gruenigen, Walter S. Borowski

EKU Faculty and Staff Scholarship

Heavy metal pollution remains a problem in natural waters, particularly for localities near plausible anthropogenic sources. We assayed the level of heavy metals in surface waters and within surface sediments of Wilgreen Lake, whose watershed drains industrial, urban, agricultural, and residential areas near Richmond, Kentucky. We sampled both surface (oxic) and deep waters (anoxic) when the lake was stratified over Summer 2010. Water samples were treated according to U.S. Environmental Protection Agency (EPA) protocols and were digested with trace-metal-grade nitric and hydrochloric acids. Sediment samples were collected with a grab sampler and digested using established EPA procedures with trace-metal-grade nitric …


Determination Of Caffeine As A Marker For Septic Tank Contamination Of Wilgreen Lake, Rosemary Onjiko, Susan Godbey, Walter S. Borowski, Darrin Smith, Lori Wilson Mar 2011

Determination Of Caffeine As A Marker For Septic Tank Contamination Of Wilgreen Lake, Rosemary Onjiko, Susan Godbey, Walter S. Borowski, Darrin Smith, Lori Wilson

EKU Faculty and Staff Scholarship

Wilgreen Lake in Richmond, Kentucky, has been listed by both the state and the Environmental Protection Agency as an “impaired” lake due to excess nutrients, which may be in part contributed by domestic septic systems. Caffeine can be used as an anthropogenic marker to estimate the contribution of septic tank effluent to the lake. We have modified existing analytical methods to produce a viable method for the determination of caffeine in environmental water samples and applied the method to water samples collected from Wilgreen Lake. The modified method allows determination of caffeine in a concentration range of 75 to 10,000 …


Patterns Of Heavy Metal Concentration In Core Sediments, Wilgreen Lake, Madison County, Clint Mcmaine, Walter S. Borowski Mar 2011

Patterns Of Heavy Metal Concentration In Core Sediments, Wilgreen Lake, Madison County, Clint Mcmaine, Walter S. Borowski

EKU Faculty and Staff Scholarship

Accumulation of heavy metals in ecosystems is a known environmental problem, and several possible industry sources occur within the watershed of Wilgreen Lake, which is fed its two major tributaries, Taylor Fork and Old Town Branch. Elevated levels of cadmium, copper, lead, and nickel were found within the waters of Wilgreen Lake during a preliminary survey in 2007. A possible source of these contaminant occurrences is diffusion from lake sediments, which record past and present activities within their drainage basins.

To obtain a history of anthropogenic practices within the drainage basin, we took 1-meter-long cores of lake sediment in each …


Evaluation Of The Sensitivity Of Inventory And Monitoring National Parks To Nutrient Enrichment Effects From Atmospheric Nitrogen Deposition Northern Great Plains Network (Ngpn), T. J. Sullivan, T. C. Mcdonnell, G. T. Mcpherson, S. D. Mackey, D. Moore Feb 2011

Evaluation Of The Sensitivity Of Inventory And Monitoring National Parks To Nutrient Enrichment Effects From Atmospheric Nitrogen Deposition Northern Great Plains Network (Ngpn), T. J. Sullivan, T. C. Mcdonnell, G. T. Mcpherson, S. D. Mackey, D. Moore

United States National Park Service: Publications

Northern Great Plains Network (NGPN)

National maps of atmospheric N emissions and deposition are provided in Maps A and B as context for subsequent network data presentations. Map A shows county level emissions of total N for the year 2002. Map B shows total N deposition, again for the year 2002.

There are three parks in the Northern Great Plains Network that are larger than 100 square miles: Badlands (BADL), Missouri (MNRR), and Theodore Roosevelt (THRO). In addition, there are 10 other smaller parks.

Total annual N emissions, by county, are shown in Map C for lands in and surrounding …


The Missing Link: The Ecology Of The Serpentine And The Implications For East And North Ponds [Presentation], Colby Environmental Assessment Team, Colby College, Problems In Environmental Science Course (Biology 493), Colby College Jan 2011

The Missing Link: The Ecology Of The Serpentine And The Implications For East And North Ponds [Presentation], Colby Environmental Assessment Team, Colby College, Problems In Environmental Science Course (Biology 493), Colby College

Colby College Watershed Study: East and North Ponds (2011, 1999, 1996, 1991)

No abstract provided.