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Phthalate And Non-Phthalate Plasticizers In Indoor Dust From Childcare Facilities, Salons, And Homes Across The Usa, bikram subedi, Kenneth D. Sullivan, Birendra Dhungana 2017 Murray State University

Phthalate And Non-Phthalate Plasticizers In Indoor Dust From Childcare Facilities, Salons, And Homes Across The Usa, Bikram Subedi, Kenneth D. Sullivan, Birendra Dhungana

Faculty & Staff Research and Creative Activity

The quality of indoor environment has received considerable attention owing to the declining outdoor human activities and the associated public health issues. The prolonged exposure of children in childcare facilities or the occupational exposure of adults to indoor environmental triggers can be a culprit of the pathophysiology of several commonly observed idiopathic syndromes. In this study, concentrations of potentially toxic plasticizers (phthalates as well as non-phthalates) were investigated in 28 dust samples collected from three different indoor environments across the USA. The mean concentrations of non-phthalate plasticizers [acetyl tri-n-butyl citrate (ATBC), di-(2-ethylhexyl) adipate (DEHA), and diisobutyl adipate (DIBA)] were ...


Assessment Of Surface Water Contamination From Coalbed Methane Fracturing-Derived Volatile Contaminants In Sullivan County, Indiana, Usa, Nicholas Meszaros, Bikram Subedi, Tristan Stamets, Naima Shifa 2017 DePauw University

Assessment Of Surface Water Contamination From Coalbed Methane Fracturing-Derived Volatile Contaminants In Sullivan County, Indiana, Usa, Nicholas Meszaros, Bikram Subedi, Tristan Stamets, Naima Shifa

Faculty & Staff Research and Creative Activity

There is a growing concern over the contamination of surface water and the associated environmental and public health consequences from the recent proliferation in hydraulic fracturing in the USA. Petroleum hydrocarbon-derived contaminants of concern [benzene, toluene, ethylbenzene, and xylene (BTEX)] and various dissolved cations and anions were spatially determined in surface waters around 14 coalbed methane fracking wells in Sullivan County, IN, USA. At least one BTEX was detected in 69% of sampling sites (n=13) and 23% of sampling sites were found to be contaminated with all of the BTEX. Toluene was the most common BTEX compound detected across ...


A Review Of The Occurrence Of Pharmaceuticals And Personal Care Products In Indian Water Bodies, Keshava Balakrishna, Amlan Rath, Yerabham Praveenkumarreddy, Keerthi Siri Guruge, Bikram Subedi 2017 MANIPAL INSTITUTE OF TECHNOLOGY

A Review Of The Occurrence Of Pharmaceuticals And Personal Care Products In Indian Water Bodies, Keshava Balakrishna, Amlan Rath, Yerabham Praveenkumarreddy, Keerthi Siri Guruge, Bikram Subedi

Faculty & Staff Research and Creative Activity

Little information exists on the occurrence and the ultimate fate of pharmaceuticals in the water bodies in India despite being one of the world leaders in pharmaceutical production and consumption. This paper has reviewed 19 published reports of pharmaceutical occurrence in the aquatic environment in India [conventional activated sludge wastewater treatment plants (WTPs), hospital WTPs, rivers, and groundwater]. Carbamazepine (antipsychoactive), atenolol (antihypertensive), triclocarban and triclosan (antimicrobials), trimethoprim and sulfamethoxazole (antibacterials), ibuprofen and acetaminophen (analgesics), and caffeine (stimulant) are the most commonly detected at higher concentrations in Indian WTPs that treat predominantly the domestic sewage. The concentration of ciprofloxacin, sulfamethoxazole, amoxicillin ...


Antibiotics And Antibiotic-Resistant Bacteria In Coastal Plain Streams, Jason Duff 2017 Georgia Southern University

Antibiotics And Antibiotic-Resistant Bacteria In Coastal Plain Streams, Jason Duff

Electronic Theses & Dissertations

Streams across the United States and globally are influenced by environmental contamination, including antibiotics, which enter streams due to widespread use and multiple pathways into the environment. Antibiotics are also likely to enter streams in mixture with other contaminants that alter the effects on aquatic organisms. Furthermore, antibiotic-resistant bacteria enter streams through similar pathways as antibiotics with implications for natural microbial communities. Therefore, understanding the presence and effects of antibiotic-contaminant mixtures and antibiotic-resistant bacteria in streams is important for resource management.

Chapter one describes an experiment that tested the hypothesis that the antibiotic tetracycline (TC) alone influences phytoplankton communities differently ...


Addressing Antibiotic Resistance From Farm-Raised Fish Imported To The United States, Nicholas Ali 2017 Bard College

Addressing Antibiotic Resistance From Farm-Raised Fish Imported To The United States, Nicholas Ali

Bard Center for Environmental Policy

Misuse of medically important antibiotics in animal production threatens the effectiveness of drugs that are vital in combating disease and infections. Recently, the FDA implemented regulations to limit the use of and access to veterinary drugs. However, these regulations only affect domestic production operations. Because over 90% of seafood consumed in the U.S. is imported from countries with different regulatory standards and because the U.S. has an import inspection rate of less than 1%, antibiotic resistance stemming from imported aquaculture is still a risk that is not sufficiently accounted for. This research investigates how the U.S. has ...


The Last Best Hope: Are Voluntary Conservation Agreements Effective Tools For Protecting Imperiled Species?, Sophie B. Tsairis 2017 University of Montana, Missoula

The Last Best Hope: Are Voluntary Conservation Agreements Effective Tools For Protecting Imperiled Species?, Sophie B. Tsairis

Graduate Student Theses, Dissertations, & Professional Papers

Candidate Conservation Agreements with Assurances, or CCAAs, are little known, voluntary conservation agreements that protect imperiled wildlife on private lands. These agreements have emerged over the past decade and have had mixed results in providing adequate protections for candidate species.

Landowners, private industries, state and federal agencies, and environmental nonprofits, are using CCAAs as tools to eliminate the need for an endangered species listing. An Endangered Species Act listing can lead to land-use uncertainty for private landowners and this threat is the main incentive to enroll in a CCAA. When landowners enroll in CCAAs they are agreeing to provide specific ...


Social Justice In Social-Ecological Systems: Resilience Through Stakeholder Engagement, Frederick I. Lauer 2017 University of Montana, Missoula

Social Justice In Social-Ecological Systems: Resilience Through Stakeholder Engagement, Frederick I. Lauer

Graduate Student Theses, Dissertations, & Professional Papers

Successful management of social-ecological systems (SES) is predicated on quality collaborative exchanges between project stakeholders and management. The Southwest Crown of the Continent Collaborative (SWCC) Collaborative Forest Landscape Restoration Program (CFLRP) provided an opportunity to explore landscape scale collaborative management and SES outcomes. Global change and future uncertainty of landscapes prompted the SWCC to employ restoration treatment alternatives throughout 1.4 million acres of forests, most of which are publicly held. The SWCC currently monitors environmental and economic variables, with plans to monitor social variables. This thesis formalizes a proposed framework to investigate SES resilience, and explores public engagement as ...


Does Timing Of Herbicide Use Influence Rates Of Germination Or Seedling Biomass Of Native Plants Used For Restoration?, Christine McManamen 2017 University of Montana, Missoula

Does Timing Of Herbicide Use Influence Rates Of Germination Or Seedling Biomass Of Native Plants Used For Restoration?, Christine Mcmanamen

Graduate Student Theses, Dissertations, & Professional Papers

Invasive plants can negatively impact native grasslands by changing their species composition, productivity, and function. Managers commonly use herbicides as a control method; however, this practice can lead to secondary invasion by other non-native invasive plants, unless measures are taken to promote natives. Because of this, managers often seed native plants after spraying herbicides. There is evidence, however, that chemical control of invasive plants may reduce the effectiveness of subsequent seed-addition treatments, but there is currently little quantitative information on optimal timing between spraying and seeding or on variation in herbicide sensitivity among native plants commonly used in seed mixes ...


Integrating Project Knowledge And Models: The Next Step In Developing A Payment For Ecosystem Services Scheme For The Big Creek Watershed, Lisa A. Schulte Moore 2017 Iowa State University

Integrating Project Knowledge And Models: The Next Step In Developing A Payment For Ecosystem Services Scheme For The Big Creek Watershed, Lisa A. Schulte Moore

Leopold Center Completed Grant Reports

The team developed a spatially targeted conservation planning scheme to foster water quality decision making in centeral Iowa's Big Creek watershed. The scheme is foundational to the potential development of a Payment for Ecosystem Services (PES) for the watershed. Big Creek watershed is an ideal Iowa location for this project because of the proximity of ecosystem service providers (farmers) to a large number of beneficiaries (water users).


Terrestrial Versus Aquatic Carbon Fluxes In An Agricultural Coastal Floodplain, Jackie Roslyn Webb 2017 Southern Cross University

Terrestrial Versus Aquatic Carbon Fluxes In An Agricultural Coastal Floodplain, Jackie Roslyn Webb

Theses

In ecosystems at the terrestrial-aquatic interface, the carbon cycle is intricately connected between these two components. However, these terrestrial-aquatic carbon subsidies are often neglected in carbon budgets. This dissertation addresses the role of the aquatic pathway in the carbon budget of a “model” ecosystem representing a well constrained catchment. By combining terrestrial and aquatic methodologies, the study revealed important findings on the drivers of aquatic carbon fluxes and the relative contribution of this pathway to offsetting the land carbon sink. This study demonstrated that an interdisciplinary approach to terrestrial-aquatic ecosystems propels our understanding of carbon cycling in these systems.


A Green Oasis: What Makes Community Gardens Worth Saving? While Researchers Amass Evidence Of Benefits, Advocates Develop New Strategy To Prove Their Value., Joel Wolfram 2016 Cuny Graduate School of Journalism

A Green Oasis: What Makes Community Gardens Worth Saving? While Researchers Amass Evidence Of Benefits, Advocates Develop New Strategy To Prove Their Value., Joel Wolfram

Capstones

Green Valley Community Garden in Brownsville, Brooklyn, is one of about a dozen gardens on land owned by the New York City Department of Housing Preservation and Development that are being uprooted by plans to build affordable housing. The gardeners are fighting back to prevent the garden’s destruction, saying that the food-producing green space is a source of healthy eating in a community with high rates of health problems, like diabetes and obesity. Researchers are attempting to tease out the public health benefits of community gardens as one metric of their value, but the science is still catching up ...


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 ...


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 ...


Cancer-Risk Benefits Of Clean Fuel Technology And Policy: A Statistical Analysis, Paul Gallagher, William Lazarus, Hosein Shapouri, Roger Conway, James Duffield 2016 Iowa State University

Cancer-Risk Benefits Of Clean Fuel Technology And Policy: A Statistical Analysis, Paul Gallagher, William Lazarus, Hosein Shapouri, Roger Conway, James Duffield

Paul Gallagher

The hypothesis of this study is that there is a statistical relationship between the lung cancer mortality rate and the intensity of fuel consumption (measured in gallons/square mile) at a particular location. We estimate cross-section regressions of the mortality rate due to lung cancer 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 cancer rate improvement estimate suggests that up to 10 lung cancer deaths per 100,000 residents are avoided in the largest urban areas ...


Trending @ Rwu Law: Julia Wyman's Post: The Threat Of Marine Debris 12-13-2016, Julia Wyman 2016 Roger Williams University School of Law

Trending @ Rwu Law: Julia Wyman's Post: The Threat Of Marine Debris 12-13-2016, Julia Wyman

Law School Blogs

No abstract provided.


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 ...


Determining The Effects Of The Think Risk Initiative As Implemented By The Southern Nevada Health District, Karalin Nichole Cronkhite 2016 University of Nevada, Las Vegas

Determining The Effects Of The Think Risk Initiative As Implemented By The Southern Nevada Health District, Karalin Nichole Cronkhite

UNLV Theses, Dissertations, Professional Papers, and Capstones

In the United States, someone becomes infected with a foodborne illness every 2 seconds, is hospitalized by a foodborne illness every 4 minutes and dies due to a foodborne illness every 3 hours. Foodborne illness is preventable, yet each year, 1 in 6 Americans is affected by it from contaminated foods or beverages. There are over 250 different foodborne diseases, and in 2015, there were 73 confirmed cases of Salmonella infection in Southern Nevada alone. Since the emergence of public health, food establishment inspections have been an important part of the regulation of food safety. Risk-based inspections were developed by ...


Persistent Organic Chemicals In The Pacific Basin Countries: An Overview, Bommanna G. Loganathan 2016 Murray State University

Persistent Organic Chemicals In The Pacific Basin Countries: An Overview, Bommanna G. Loganathan

Faculty & Staff Research and Creative Activity

The Pacific Basin is a unique geographical region representing tropical, temperate and polar zones. This region is home to 2/3 of world’s population and consists of rapidly growing economies (countries) and highly developed countries. The Pacific Basin countries have had a history of use of persistent organic chemicals (POCs) at varying proportions during the last five decades. Due to diverse climatic and socio-economic conditions, the environment and biota in different countries in this basin have varying degrees of environmental contamination and effects on wildlife and humans. In this chapter, the historical background of POCs including, discovery, production, use ...


Environmental Emission Of Pharmaceuticals From Wastewater Treatment Plants In The Usa, Bikram Subedi, Bommanna G. Loganathan 2016 Murray State University

Environmental Emission Of Pharmaceuticals From Wastewater Treatment Plants In The Usa, Bikram Subedi, Bommanna G. Loganathan

Faculty & Staff Research and Creative Activity

The residual drugs, drug bioconjugates, and their metabolites, mostly from human and veterinary usage, are routinely flushed down the drain, and enter wastewater treatment plants (WWTP). Increasing population, excessive use of allopathic medicine, continual introduction of novel drugs, and existing inefficient wastewater treatment processes result in the discharge of large volumes of pharmaceuticals and their metabolites from the WWTPs into the environment. The effluent from the WWTPs globally contaminate ~25% of rivers and the lakes. Pharmaceuticals in the environment, as contaminants of emerging concerns, behave as pseudo-persistent despite their relatively short environmental half-lives in the environment. Therefore, residual levels of ...


Gastrointestinal Health As A Stimulus For Native American Attraction To Medicinal Asteraceae And Further Implications For Human Evolution, Christopher David Stiegler 2016 University of Arkansas, Fayetteville

Gastrointestinal Health As A Stimulus For Native American Attraction To Medicinal Asteraceae And Further Implications For Human Evolution, Christopher David Stiegler

Theses and Dissertations

The Asteraceae, or the daisy family, is the largest family of flowering plants in the world, and its ethnobotanical, medical, and economic value is readily apparent cross-culturally. The aim of this thesis is to examine why constituent genera of the Aster family have remained such an integral part of human medicinal plant knowledge, and thereby to reveal any potential physiological, biological, or evolutionary mechanisms underlining human patterns of use regarding the Asteraceae. The present study focuses specifically on Native American plant knowledge made available by the expansive database in the works Daniel Moerman (Moerman 2003). Frequencies of plant use and ...


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