Related Topics: Water Research

Water Research Products in the Science Inventory

Records 1 to 25 of 5368

Evaluation of a Physiologically-based Pharmacokinetic (PBPK) Model for Inorganic Arsenic Exposure Using Data from Two Diverse Human Populations. (JOURNAL)
Background: Multiple epidemiological studies exist for some of the well-studied health endpoints associated with inorganic arsenic (iAs) exposure; however, results are usually expressed in terms of different exposure/dose metrics. Physiologically based pharmacokinetic (PBPK) mode...
Method development for short-term effluent tests with a freshwater mussel (Fatmucket Lampsilis siliquoidea) (PRESENTATION)
Short-term (6-8 d) freshwater toxicity testing methods have been promulgated by the US Environmental Protection Agency for estimating chronic toxicity of effluent and receiving water using three standard species: a fish (Pimephales promelas), a cladoceran (Ceriodaphnia dubia), an...
A mechanistic framework for integrating chemical structure and high-throughput screening results to improve toxicity predictions (JOURNAL)
Adverse Outcome Pathways (AOPs) establish a connection between a molecular initiating event (MIE) and an adverse outcome. Detailed understanding of the MIE provides the ideal data for determining chemical properties required to elicit the MIE. This study utilized high-throughput ...
Cytotoxicity in Primary Human Hepatocytes Exposed to Various Microcystin Congeners (PRESENTATION)
Microcystins (MCs) are monocyclic heptapeptide algal toxins produced by cyanobacterial species. MCs are the most common cyanotoxin found in the environment and are found in most surface waters worldwide. MCs pose a risk to humans and animals due to their presence in drinking and ...
Microbial Source Tracking: From Basic Science to Management Tool (PRESENTATION)
Presentation to be given at the Annual UNC Water Microbiology Meeting.
Challenges and Changes: Urbanization Trends in Narragansett Bay Watershed Historical and Current (PRESENTATION)
The Narragansett Bay watershed is currently 35 percent urban concentrated mostly along the coastal fringe and in the upper reaches of the catchment. Forty percent of the population in the watershed also lives in coastal areas. Historical and current land use changes, driven by po...
Let's Get Moving and Write Software – an Open Source Project for EPANET (JOURNAL)
Water infrastructure simulation models, such as EPANET and SWMM, have played a significant role in simulating water distribution, stormwater and sanitary sewer systems. These software packages have played an important, and varying, role to different portions of the water infrast...
Workshop on Health Risk Assessment of Environmental Chemical Mixtures: Concepts, Methods, Applications (PRESENTATION)
This problems-based, half-day, introductory workshop focuses on methods to assess health risks posed by exposures to chemical mixtures in the environment. Chemical mixtures health risk assessment methods continue to be developed and evolve to address concerns over health risks f...
Identification of Vulnerable Communities with High Lead Exposures Residing in Michigan (PRESENTATION)
Lead exposure is associated with a variety of harmful effects in both children and adults, including adverse neurological, cardiovascular, kidney, developmental, and reproductive outcomes. Scientific evidence indicates that exposure to even small amounts of lead can be harmful to...
Proteomic Array Analysis of an Epithelial Cell Model infected with Cryptosporidium (PRESENTATION)
Cryptosporidiosis is a human diarrheal disease caused by the etiological agent Cryptosporidium. This parasite abounds in the environment in resistant oocyst form and can cause life-threatening consequences in immunosuppressed individuals. By evaluating the fundamental mechanisms ...
Exposure to Strontium through Drinking Water used in the Preparation of Foods (PRESENTATION)
Strontium (Sr) is a natural element, ubiquitous in the environment and known to occur in water, food, air, and soils. Strontium is present in media as a salt or an ionized divalent cation. The Sr ion (dissociated) is toxicokinetically important because this form is easily absorb...
Contaminants of Emerging Concern During De Facto Water Reuse (ISES-ISEE 2018) (PRESENTATION)
The drinking water and wastewater cycles are integrally linked. Chemicals that are present in household wastewater may be sufficiently mobile and recalcitrant to pass through on-site or municipal wastewater treatment and survive natural environmental removal processes. Such per...
Drinking Water Systems: methods and applications (PRESENTATION)
Water research is currently undergoing a revolution and the rapid accumulation of molecular data is uncovering vast diversity, abundant uncultivated microbial groups and novel microbial functions. The field is at a stage where it is necessary to move beyond describing which gro...
Microbial ecoenzyme stoichiometry, nutrient limitation, and organic matter decomposition in wetlands of the conterminous United States (JOURNAL)
We analyzed microbial respiration and ecoenzyme activities related to microbial carbon, nitrogen, phosphorus, and sulfur acquisition in more than 900 freshwater and estuarine wetlands across the continental US as part of the US EPA Office of Water’s 2011 National Wetland Conditio...
The Emergence of Onsite Reuse (PRESENTATION)
This free annual workshop, held in partnership with the Association of State Drinking Water Administrators (ASDWA), will provide in-depth information and training on various solutions and strategies for handling small drinking water system challenges. The workshop is primarily de...
Does National Wetland Inventory class consistently identify vegetation and edaphic differences in Oregon tidal wetlands? (JOURNAL)
Accurately mapping, modeling, and managing the diversity of wetlands present in estuaries often relies on habitat classification systems that consistently identify differences in biotic structure or other ecosystem characteristics between classes. We used field data from four Ore...
Ecosystem Services from Urban Places (PRESENTATION)
This presentation will address the urban hydrologic cycle and how urban soils and the landscapes that they support can function as passive green infrastructure, providing ecosystem services that are revealed by intentional assessments.
Not so vacant? Evaluating vacant lots as passive green infrastructure for the rendering of hydrologic ecosystem services (PRESENTATION)
Social and economic drivers have resulted in population loss and altered demographics in many Great Lakes basin cities. This change has created a landscape mosaic that includes extensive coverage in blighted parcels, which – through proper demolition and site finishing &nda...
Life Cycle Assessment and Cost Analysis of Membrane Bioreactor Systems: Influence of Scale, Population Density, Climate, and Methane Recovery - Seattle (PRESENTATION)
This study calculated the cumulative energy and greenhouse gas (GHG) life cycle and cost profiles of transitional aerobic membrane bioreactors (AeMBR) and anaerobic MBRs (AnMBR). Different scenarios were investigated for different scale systems serving various population densiti...
Multi-scale Systems Analysis for Optimization of Water Supply Infrastructure (PRESENTATION)
Systems analysis in multi-objective optimization offers quantitative comparisons of benefit-cost trade-offs against a set of, often competing, engineering and management objectives. Such technical approaches are common in chemical engineering and in hazardous waste engineering, s...
EPA-USDA-USGS Working Meeting on Management Strategies for Reactive Nitrogen and Co-Pollutants (PUBLISHED REPORT)
Scientists and managers from government, academia, NGOs and the private sector came together in June 2014 to review the science and management related to reactive nitrogen and co-pollutants (e.g., phosphorus, sulfur) across the U.S. Department of Agriculture (USDA), U.S. Geologic...
Modeling background conductivity and biological extirpation (PRESENTATION)
Specific conductivity (SC) is a measure of a mixture of dissolved ions (salts) in water. In 2011, conductivity was ranked as the #1 priority for national aquatic life criteria by state water quality managers and EPA regions. Increased salinization affects multiple designated use...
2012 Annual Report to Characterize the Ottawa River Using Physical, Biological, and Chemical Lines of Evidence (PUBLISHED REPORT)
International concern about contaminated sediments is increasing as sustainable practices are needed to maintain water resources and waterways as important economic, commercial, recreational, and community resources. Sediments often serve as long-term sinks for legacy pollutants,...
Chlorinated Cyanurates: Review of Water Chemistry and Associated Drinking Water Implications (JOURNAL)
Since 1958, cyanuric acid and two chlorinated cyanurates, commonly referred to as dichlor (anhydrous sodium dichloroisocyanurate or sodium dichloroisocyanurate dihydrate) or trichlor (trichloroisocyanuric acid), have been added to outdoor swimming pools to stabilize chlorine resi...
The role of place as a modifier of asthma associations among children in Seattle (PRESENTATION)
Asthma is the most common chronic illness of childhood and its prevalence is increasing, causing much concern for identification of risk factors. Previous work in Seattle has identified strong associations between air pollution and pediatric asthma emergency department (ED) visit...