Open Access. Powered by Scholars. Published by Universities.®

Environmental Health and Protection Commons™

Open Access. Powered by Scholars. Published by Universities.®

7,883 Full-Text Articles 8,848 Authors 5,377,310 Downloads 223 Institutions

All Articles in Environmental Health and Protection

Faceted Search

7,883 full-text articles. Page 196 of 212.

Natural And Constructed Wetlands For Ecosystem And Engineering Services In The Arid And Semi-Arid Regions, Achyut Raj Adhikari 2012 University of Nevada, Las Vegas

Natural And Constructed Wetlands For Ecosystem And Engineering Services In The Arid And Semi-Arid Regions, Achyut Raj Adhikari

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Las Vegas Wash (LVW) has undergone significant wetlands degradation and soil erosion over the past thirty years due to increasing flow resulting from urbanization and large rainfall events in the Las Vegas Valley Watershed. The increased flow and associated pollution load in the LVW and its adverse impact in Lake Mead have alerted stakeholders to pay a greater attention to explore alternative measures for rehabilitation of wetland ecosystems. This dissertation, using the case of changes in LVW, analyzes and describes ecological and engineering services provided by wetlands in arid and semi-arid regions and provides a knowledge base that can …


The New American Conservation Movement: New Strategies, Focus And Organizations For The 21st Century, Amy Deanna Northrup 2012 University of Nevada, Las Vegas

The New American Conservation Movement: New Strategies, Focus And Organizations For The 21st Century, Amy Deanna Northrup

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation provides evidence of the emergence of a new conservation movement in the United States. The strategic, tactical and organizational approaches of traditional conservation efforts, which began in the early 1900s, have shifted during the last two decades. Specifically, the new conservation movement is characterized by three distinct changes. First, many of the well-established conservation organizations, such as the Sierra Club and National Audubon Society, have largely abandoned their traditional focus on increasing the number of acres preserved; instead more defensive and fragmented forms of conservation now reign. The second change to the conservation movement involves a dramatic expansion …


Exploring German And American Modes Of Pedagogical And Institutional Sustainability: Forging A Way Into The Future, Lindon N. Pronto 2012 Pitzer College

Exploring German And American Modes Of Pedagogical And Institutional Sustainability: Forging A Way Into The Future, Lindon N. Pronto

Pitzer Senior Theses

Rooted deep in Germany's past is its modern socio-political grounding for environmental respect and sustainability. This translates into individual and collective action and extends equally to the economic and policy realm as it does to educational institutions. This thesis evaluates research conducted in Germany with a view to what best approaches are transferable to the United States liberal arts setting. Furthermore, exemplary American models of institutional sustainability and environmental education are explored and combined with those from abroad to produce a blueprint and action plan fitting for the American college and university.


Assessing Population-Level Effects Of Zinc Exposure To Brown Trout (Salmo Trutta) In The Arkansas River At Leadville, Colorado, John Toll, Kristina Garber, David DeForest, William Brattin 2012 Windward Environmental LLC

Assessing Population-Level Effects Of Zinc Exposure To Brown Trout (Salmo Trutta) In The Arkansas River At Leadville, Colorado, John Toll, Kristina Garber, David Deforest, William Brattin

United States Environmental Protection Agency: Publications

We assessed population-level risk to upper Arkansas River brown trout (Salmo trutta L.) due to juvenile exposure to Zn. During spring, individuals in the sensitive young-of-the-year life stage are exposed to elevated Zn concentrations from acid mine drainage. We built and used a simple life-history population model for the risk assessment, with survival and fecundity parameter values drawn from published data on brown trout populations located in the United States and Europe. From experimental data, we derived a toxicity model to predict mortality in brown trout fry after chronic exposure to Zn. We tested sensitivity of risk estimates to …


Take Pride In America Phase Iii: Quarterly Progress Report, Period Covering January 25, 2012-April 24, 2012, Margaret N. Rees 2012 University of Nevada, Las Vegas

Take Pride In America Phase Iii: Quarterly Progress Report, Period Covering January 25, 2012-April 24, 2012, Margaret N. Rees

Anti-littering Programs

  • The GIS database continued to be populated with data.
  • Hector’s Helpers participants completed multiple projects.
  • Social Media training was delivered.
  • The pilot testing of the litter monitoring program continued.

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.


Clean Water In Haiti, Hannah McHugh 2012 Eastern Illinois University

Clean Water In Haiti, Hannah Mchugh

2012 Awards for Excellence in Student Research & Creative Activity - Documents

In the past few years, Haiti has been a topic that has been in the news here in the United States for many reasons. These reports typically show the faces of hundreds of starving and injured Haitians who live in turmoil and they discuss the disasters that have befallen the country. While these reports do not usually show the more pleasant aspects, they are relatively accurate in showing the state of the majority of the country. A major impact on a country that is in such a dire state is the presence and availability of clean water. But to understand …


Green Boston Harbor Project (Gbh), Community Environmental Stewardship: Applied Research, Education And Outreach, Anamarija Frankić 2012 University of Massachusetts Boston

Green Boston Harbor Project (Gbh), Community Environmental Stewardship: Applied Research, Education And Outreach, Anamarija Frankić

Office of Community Partnerships Posters

The GBH methodology is derived from a 1500 year old Native Hawaiian Ahupua’a approach. This approach defines sustainable relationships among land, water and humans from the tops of islands to the coral reefs and open ocean. GBH seeks a similar interconnection between the City of Boston and Boston Harbor: from watersheds to the harbor and its coastal habitats and islands.


Estimation Of Phosphorus Bioavailability In The Water Column Of The Bronx River, New York, Jingyu Wang, Hari K. Pant 2012 CUNY Bronx Community College

Estimation Of Phosphorus Bioavailability In The Water Column Of The Bronx River, New York, Jingyu Wang, Hari K. Pant

Publications and Research

Phosphorus (P) is a primary limiting nutrient in rivers and streams, and excessive P results in eutrophication of freshwater systems, in turn, excessive algal growth/toxic algal blooms, oxygen depletion, and water quality degradation. This study analyzed P pool, and hydrolysis of organic P (OP) by native phosphatases (NPase) in the water samples collected in the Bronx River. The soluble reactive P (SRP) of most of the sites’ water collected in 2006 and 2007 were higher (average 67 µg·L–1 and 68 µg·L–1, respectively) than the US Environmental Protection Agency’s (EPA) standard of 15 µg·L–1. The SRP% (SRP/TP%) average was 27% in …


A Conceptual Model To Facilitate Amphibian Conservation In The Northern Great Plains, David M. Mushet, Ned H. Euliss Jr., Craig A. Stockwell 2012 Northern Prairie Wildlife Research Center

A Conceptual Model To Facilitate Amphibian Conservation In The Northern Great Plains, David M. Mushet, Ned H. Euliss Jr., Craig A. Stockwell

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

As pressures on agricultural landscapes to meet worldwide resource needs increase, amphibian populations face numerous threats including habitat destruction, chemical contaminants, disease outbreaks, wetland sedimentation, and synergistic effects of these perturbations. To facilitate conservation planning, we developed a conceptual model depicting elements critical for amphibian conservation in the northern Great Plains. First, we linked upland, wetland, and landscape features to specific ecological attributes. Ecological attributes included adult survival; reproduction and survival to metamorphosis; and successful dispersal and recolonization. Second, we linked ecosystem drivers, ecosystem stressors, and ecological effects of the region to each ecological attribute. Lastly, we summarized information on …


Coarse Woody Debris In A Tropical Rainforest In North Queensland, Australia: Relationships With Stand Structure And Disturbance, Nadine Rea 2012 SIT Study Abroad

Coarse Woody Debris In A Tropical Rainforest In North Queensland, Australia: Relationships With Stand Structure And Disturbance, Nadine Rea

Independent Study Project (ISP) Collection

Coarse woody debris (CWD) refers to the woody material on the forest floor, including fallen stems, large branches, coarse roots, wood pieces, and standing dead trees (snags) (Harmon et al. 1986). CWD is an essential but often overlooked aspect of ecosystems. It plays many key ecosystem roles and is instrumental in overall ecosystem functionality. While a piece of CWD decomposes, it provides key habitat for many different species, minimizes soil erosion, affects soil development, stores nutrients and water, and influences the global carbon cycle (Harmon and Hua 1991). In some forests, CWD can exist on the forest floor for hundreds …


Scwds Briefs: Volume 28, Number 1 (April 2012), Jeanenne Brewton, Michael J. Yabsley 2012 University of Georgia

Scwds Briefs: Volume 28, Number 1 (April 2012), Jeanenne Brewton, Michael J. Yabsley

Southeastern Cooperative Wildlife Disease Study: Publications

Wildlife Restoration Program: 75 Years of Success

AIV in Minnesota Ducks: The Whole Shebang

Another Vector-borne Virus Hits European Livestock

Polyarthritis in Raccoons

Borrelia in African Penguins

Accolades


The Vacb Model In Hòa An Village And Xeo Trâm Hamlet: Comparison And Analysis Through A Gendered Lens, Alyssa Bosold 2012 SIT Study Abroad

The Vacb Model In Hòa An Village And Xeo Trâm Hamlet: Comparison And Analysis Through A Gendered Lens, Alyssa Bosold

Independent Study Project (ISP) Collection

Burning fuel-wood, a method of traditional cooking practiced by half of all homes in Vietnam (Global Alliance for Clean Cook-stoves 2012) and the majority of homes in Hòa An Village and Xeo Trâm Hamlet, has significant negative consequences in terms of environmental and personal health. In Hòa An Village and Xeo Trâm Hamlet, as is true in much of Vietnam, gender roles dictate that women should be primarily responsible for household chores like cooking (World Bank 2001, Nguyen 2012, Nguyen 2012, Vo 2012). This means that women must often deal directly with the environmental dangers and safety hazards of woodstoves. …


Inteñas En Acción: El Eco-Feminismo Y El Desarrollo Alternativo En Íntag, Ellicott Dandy 2012 SIT Study Abroad

Inteñas En Acción: El Eco-Feminismo Y El Desarrollo Alternativo En Íntag, Ellicott Dandy

Independent Study Project (ISP) Collection

El bosque nublado es una zona de vida subtropical y montañosa del Ecuador caracterizada por sus grandes cuencas hídricas, y su riqueza de aves y plantas epifitas.[1] Dentro del bosque nublado, está la Zona de Íntag con una extensión de 1.374,4 kilómetros cuadrados.[2] Junto a esta diversidad de especies, conviven unas doce mil personas[3] en parroquias y docenas de comunidades pertenecientes al sector, conectadas por carreteras que serpentean entre las lomas verdes de la Cordillera Toisán. Un 98% de la población de Íntag se identifica como mestiza, y del restante 2%, 1% como indígena y 1% como …


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 2012 SIT Study Abroad

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 …


Water And Sanitation: A Study Of Deserted Idp Camps In Lapul Sub-County, Patrick Dunlap 2012 SIT Study Abroad

Water And Sanitation: A Study Of Deserted Idp Camps In Lapul Sub-County, Patrick Dunlap

Independent Study Project (ISP) Collection

This paper sets out to discover how access to water and sanitation has changed overtime for the residents of deserted satellite IDP camps in Lapul sub-county, Northern Uganda. Throughout the period of conflict in the region until today, residents of this region have struggled to gain adequate access to water and sanitation.

Qualitative field research was carried out over a period of eleven days, with six interviews and three focus groups held to gain information on how access to water and sanitation has changed overtime for the displaced. Methods of Rapid Rural Appraisal and Direct Observation were applied to make …


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

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 …


Running Head: Sustainability Framework Applied To Integrated Resort 1 International Standard Of Sustainability Framework Applied To Integrated Resorts, Jong Hwa Jeon 2012 University of Nevada, Las Vegas

Running Head: Sustainability Framework Applied To Integrated Resort 1 International Standard Of Sustainability Framework Applied To Integrated Resorts, Jong Hwa Jeon

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose

The purpose of this study is to explore the extent to which Las Vegas integrated resorts apply measurement framework for sustainability. It will scrutinize and explore the existing sustainability strategies and practices, and look into several plausible ways to improve the sustainability movement that the companies in hospitality industry currently have. The paper will also look into the tracking and measuring system in consuming resources and the equivalent common actions taken by the management of the hospitality companies. From there, the paper will discuss the Global Reporting Initiative (GRI) guideline and establish if the companies have aligned their efforts …


Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering January 1, 2012 To March 31, 2012, Margaret N. Rees 2012 University of Nevada, Las Vegas

Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering January 1, 2012 To March 31, 2012, Margaret N. Rees

Get Outdoors Nevada

  • The number of records in the volunteer database increased by 4.96% over the last quarter. The database now contains 7,423 records.
  • Results show an average of 1,259 visits per month, and with an average of 3,015 pages viewed per month.
  • Get Outdoors Nevada supported 14 volunteer events in a variety of ways. These events utilized 364 volunteers whom contributed approximately 2,414 hours of service.
  • Three community outreach events were attended, resulting in 293 direct contacts with 50 names added to the database.
  • The automated volunteer orientation training project has been completed and disks have been delivered to the 4 agencies. …


Low Level Exposure To Air Pollution And Risk Of Adverse Birth Outcomes In Hillsborough County, Florida, Maria B. Mainolfi 2012 University of South Florida

Low Level Exposure To Air Pollution And Risk Of Adverse Birth Outcomes In Hillsborough County, Florida, Maria B. Mainolfi

USF Tampa Graduate Theses and Dissertations

In this retrospective cohort from 2002 through 2007, 104,003 singleton live births in Hillsborough County, Florida were analyzed to elucidate the relationship between feto-infant morbidity outcomes and prenatal exposure to six criteria air pollutants. This study is based on three linked databases: The Florida Hospital Discharge database; The vital statistics records of singleton live births; Air Pollution meteorological data from the Environmental Protection Agency. There are six common air pollutants, particulate matter 2.5 (PM2.5), particulate matter 10 (PM10), ground-level ozone (O3), carbon monoxide (CO), nitrogen (NOx), and lead (Pb). These pollutants are harmful to human health and the environment. The …


Comparative Analysis Of Two Biological Warfare Air Samplers Using Live Surrogate Agents, James C. Enderby 2012 Air Force Institute of Technology

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 …


Digital Commons powered by bepress