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Homeland Security Research Products in the Science Inventory

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  • Keyword = ''SAM OR 'analytical methods' OR 'analytical method' OR analysis'''.
Records 26 to 50 of 22223

2024
Climate Resilience Planning with the Equitable Resilience Builder
(PRESENTATION) [Presented : Apr 02, 2024]
Federal agencies are increasing efforts to provide support to local communities for climate adaptation and hazard resilience. This involves engaging communities using approaches to understand and address problems holistically, particularly where equity and environmental justice a...
Comparison of metals in eelgrass (Zostera marina L.) and the environment across the North Pacific Ocean: Environmental processes drive source delivery
(JOURNAL) [Published : Feb 01, 2024]
Seagrass beds play a critical role in biodiversity maintenance, serving as nursery habitats for fisheries, and aiding in carbon and sediment sequestration in the ecosystem. These habitats receive dissolved and particulate material inputs, like nutrients and heavy metals, aff...
Composition of active bacterial communities and presence of opportunistic pathogens in disinfected and non-disinfected drinking water distribution systems in Finland
(JOURNAL) [Published : Jan 01, 2024]
Many factors, including microbiome structure and activity in the drinking water distribution system (DWDS), affect the colonization potential of opportunistic pathogens. The present study aims to describe the dynamics of active bacterial communities in DWDS and identify the facto...
Computational Fluid Dynamics Analysis of a Micro-scale Chamber for Measuring Organic Chemical Emission Parameters
(JOURNAL) [Published : Feb 01, 2024]
Computational fluid dynamics simulations are used to model the velocity field and the transport of a passive scalar within a micro-scale chamber used to measure diffusional transport through various building materials.  Comparisons of solutions obtained using a steady, lamin...
Connecting Stakeholder Priorities and Desired Environmental Attributes for Wetland Restoration Using Ecosystem Services and a Heat Map Analysis for Communications
(JOURNAL) [Published : Mar 27, 2024]
Framing ecological restoration and monitoring goals from a human benefits perspective (i.e., ecosystem services) can help inform restoration planners, surrounding communities, and relevant stakeholders about the direct benefits they may obtain from a specific restoration project....
Critical Review of Field Studies of Chemical Surface Coatings to Mitigate Leaching from Mining Wastes
(JOURNAL) [Published : Feb 28, 2024]
Source control of mine drainage and leachate from mining wastes is ideal, but there is limited use of control methods aside from removal of wastes to repositories or capping wastes in situ. In some locations, neither removal nor capping is possible; thus, there is renewed interes...
Data visualization with RETIGO
(PRESENTATION) [Presented : May 03, 2024]
Data visualization tools that are quick and easy to use, require no coding skills, and can be used with any type of sensor are in high demand.  In addition to visualizing their own data, users often wish to compare the data they collect with other nearby data sources such as...
De facto water reuse - Investigating the fate and transport of chemicals of emerging concern from wastewater discharge through drinking water treatment using non-targeted analysis and suspect screening
(JOURNAL) [Published : Feb 06, 2024]
Wastewater is a source for many contaminants of emerging concern (CECs) and surface waters receiving wastewater discharge often serve as source water for downstream drinking water treatment plants. Non-targeted analysis and suspect screening methods were used to characterize chem...
Deiodinase metabolism of thyroid hormones as measured by LC-MS/MS is altered by exposure to iopanoic acid in a rodent model
(PRESENTATION) [Presented : Mar 12, 2024]
Thyroid hormones (TH) are highly iodinated molecules that regulate many aspects of mammalian physiology and are essential for normal growth and development. Deiodinases (DIO) are a family of three metabolizing enzymes (DIO1, DIO2, DIO3) by activating or deactivating TH action. Th...
Detection of anatoxins in human urine by liquid chromatography triple quadrupole mass spectrometry and ELISA
(JOURNAL) [Published : Mar 01, 2024]
Harmful cyanobacterial blooms are becoming more common and persistent around the world. When in bloom, various cyanobacterial strains can produce anatoxins in high concentrations, which, unlike other cyanobacterial toxins, may be present in clear water. Potential human and animal...
Developing Chemical Signatures for Categories of Household Consumer Products Using Suspect Screening Analysis
(PRESENTATION) [Presented : Mar 14, 2024]
Background and Purpose:  Consumer products are a major source of chemical exposure and therefore potential risk. It is important to understand what chemicals are typically present in various types of products for risk evaluation and assessment of new products for uncommon ch...
Developing data provenance approaches in ToxValDB: An IRIS Case Study
(PRESENTATION) [Presented : Mar 14, 2024]
Background and Purpose The U.S. Environmental Protection Agency’s (U.S. EPA) Toxicity Values Database (ToxValDB) is a compendium of toxicology information including human health reference values, cancer slope factors, ecological screening or effect levels, and quantitative ...
Development Of A Novel in Vitro Method to Study Effects of Volatile Compounds on Neural Activity
(PRESENTATION) [Presented : Mar 14, 2024]
Background and Purpose: Current in vitro toxicology methods typically rely on exposure of cells to compounds that were added to the culture media. For neurotoxicity, in vitro exposure of rat cortical neural networks plated on multi-well microelectrode array plates (MEAs) have bee...
Development of a Functional Assay using Human Brain Organoids to Study Developmental Neurotoxicity
(PRESENTATION) [Presented : Mar 14, 2024]
Background and Purpose: Human in vitro models of the developing brain are important for studying neurodevelopment and the potential developmental neurotoxicity (DNT) of environmental and pharmacological compounds. Exposure to these compounds during neurodevelopment can cause adve...
Development of a GC-MS/MS Method for Semi-Volatile PFAS Precursors
(PRESENTATION) [Presented : Apr 27, 2024]
Poster presentation to the PFAS Research Workshop "Science for a Changing World", hosted by Office of Research and Development (ORD) Office of the Science Advisor, Policy, and Engagement (OSAPE) and Center for Environmental Solutions and Emergency Response (CESER) ...
Development of a Novel in Vitro Method to Study Effects of Volatile Compounds on Neural Activity (TSfN)
(PRESENTATION) [Presented : Apr 26, 2024]
Background and Purpose: Current in vitro toxicology methods typically rely on exposure of cells to compounds that were added to the culture media. For neurotoxicity, in vitro exposure of rat cortical neural networks plated on multi-well microelectrode array plates (MEAs) have bee...
Distribution of select per- and polyfluoroalkyl substances at a chemical manufacturing plant
(JOURNAL) [Published : Feb 15, 2024]
Per- and polyfluoroalkyl substances (PFAS) are used in various industrial products; however, they pose serious health risks. In this study, soil, soil gas, and groundwater samples were collected at a PFAS manufacturing facility in New Jersey, USA, to determine the presence and di...
EPA Measurement Methods for Vapor Phase PFAS Emissions
(PRESENTATION) [Presented : Mar 13, 2024]
This presentation will be given at a workshop on developing best practices for chemically characterizing vapor phase emissions from PFAS destruction technologies. The audience will include researchers from academia, goverment, and industry. All slides have been cleared previously...
EPA Transcriptomic Assessment Product (ETAP) for Perfluoro-3-Methoxypropanoic Acid
(PUBLISHED REPORT) [Published : Mar 07, 2024]
The EPA Transcriptomic Assessment Product (ETAP) is a human health assessment that utilizes a standardized short-term in vivo study design and data analysis procedures to develop transcriptomic-based reference values for data poor chemicals. The reference value represents the dai...
Eco-decisional well-being networks as a tool for community decision support
(JOURNAL) [Published : Apr 18, 2024]
Community decision making based on the sustainability of ecosystem services is an integrated process that involves multiple complex decisions and is greatly aided by an understanding of how those decisions are interrelated. The interrelatedness of decisions can be understood and ...
Economic Impacts of Brownfields Cleanup and Redevelopment in Fulton County, GA (TENSOS conference)
(PRESENTATION) [Presented : May 17, 2024]
This study assessed the impact of brownfield sites, categorized by cleanup and redevelopment status, on nearby property values in Fulton County, GA. Data on location and status of brownfield sites were obtained from EPA’s Assessment, Cleanup and Redevelopment Exchange Syste...
Effects of Age and Exposure Duration on the Sensitivity of Early Life Stage Fathead Minnow (Pimephales promelas) to Waterborne Propranolol Exposure
(JOURNAL) [Published : Jan 31, 2024]
Propranolol is a heavily prescribed, nonspecific beta-adrenoceptor (bAR) antagonist frequently found in wastewater effluents, prompting concern over its potential to adversely affect exposed organisms. In the present study, the transcriptional responses of 4, 5, and 6 days postfe...
Effects of multi-walled carbon nanotubes on message and Micro-RNA in human lung BEAS-2B cells
(JOURNAL) [Published : Feb 01, 2024]
Multi-walled carbon nanotubes (MWCNTs) lack sufficient quality cytotoxicity, toxicity, genotoxicity and genomic data on which to make environmental and regulatory decisions. Therefore, we did a multidisciplinary in vitro study of 3 MWCNTs in human lung cells (BEAS-2B) w...