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Records 26 to 50 of 6176

Policy Assessment for the Reconsideration of the Ozone National Ambient Air Quality Standards, External Review Draft
(ASSESSMENT DOCUMENT) [Published : Jun 09, 2023]
Ozone is one of the six major air pollutants for which EPA has issued air quality criteria and established national ambient air quality standards (NAAQS) based on those criteria. The Clean Air Act (CAA) requires EPA to periodically review and revise, as appropriate, existing air ...
Screening Methodologies to Support Risk and Technology Reviews (RTR): A Case Study Analysis
(ASSESSMENT DOCUMENT) [Published : Sep 13, 2018]
The Clean Air Act establishes a two-stage regulatory process for addressing emissions of hazardous air pollutants (HAPs) from stationary sources. In the first stage, the Act requires the EPA to develop technology-based standards for categories of industrial sources. We have lar...
Policy Assessment for the Review of the Primary National Ambient Air Quality Standard for Sulfur Oxides, External Review Draft
(ASSESSMENT DOCUMENT) [Published : Aug 24, 2017]
Sulfur oxides are one of the six major air pollutants for which EPA has issued air quality criteria and established national ambient air quality standards (NAAQS) based on those criteria. The Clear Air Act (CAA) requires EPA to periodically review and revise, as appropriate, exis...
NO2 NAAQS Review: Policy Assessment
(ASSESSMENT DOCUMENT) [Published : Sep 22, 2016]
NO2 is one of the six major air pollutants for which EPA has issued air quality criteria and established national ambient air quality standards (NAAQS) based on those criteria. The Clean Air Act (CAA) requires EPA to periodically review and revise, as appropriate, existing air qu...
Effects of Early Life Exposure to Ozone on Lung Development and Potential Linkage to Later Life Disease
(PRESENTATION) [Presented : Oct 23, 2023]
Platform presentation at the 41st Veterinary Comparative Respiratory Society meeting on Lung Damage and Repair, Providence RI Oct. 23-25, 2023 October is Children’s Health Month. As a vulnerable population, children are often more susceptible to the damaging effects of poll...
Extreme Heat and Health Research Overview
(PRESENTATION) [Presented : Feb 06, 2024]
This presentation gives a brief overview of key research findings related to extreme heat and health, suitable for an 8-10 minute presentation. We highlight key findings related to urban heat islands, cardiovascular outcomes, and respiratory outcomes, and provide context for the ...
Linkages between AOP key events with in vitro DNT assays: Examples of GABAergic and Glutamatergic modes of action
(PRESENTATION) [Presented : Apr 10, 2024]
Neurodevelopment is a period vulnerable to various insults, including those produced by environmental compounds, and an understanding of these effects continues to be needed. Although in vitro New Approach Methodologies (NAMs) are being developed to foster efficient assessment of...
PFAS mixtures – Evaluation of dose additivity from combined exposure to multiple PFAS during pregnancy in a laboratory rat model - EPA PFAS Science Call
(PRESENTATION) [Presented : Apr 29, 2024]
The six PFAS we have studied (PFOA, GenX, PFMOAA, PFOS, NBP2, PFHxS) produced multiple common effects across all compounds, however the compounds were not toxicologically identical.  Effects common across all compounds included reduced pup and maternal bodyweights, reduced p...
Health Impacts of Future Prescribed Fire Smoke: Considerations from an Exposure Scenario in California CALFIRE Webinar
(PRESENTATION) [Presented : May 29, 2024]
Webinar for CALFIRE Prescribed fire is a forest management strategy for reducing risk of wildfires. This study examined the change in cardiorespiratory health impacts (emergency department visits) that could result from an expected increase in the use of prescribed fire in Califo...
Sub-chronic exposure to elevated temperature and episodic wildfire smoke interact to dysregulate pulmonary, cardiovascular, and metabolic health of male WKY rats
(PRESENTATION) [Presented : Feb 27, 2024]
We hypothesized that stress caused by high-temperature housing and episodic subchronic wildfire-related eucalyptus smoke exposure (WFES) would interact to disrupt pulmonary, cardiovascular, and metabolic health. Male Wistar-Kyoto rats (4 weeks of age) were exposed to thermal stre...
Burn pit smoke condensate-mediated toxicity in human airway epithelial cells
(JOURNAL) [Published : May 20, 2024]
Burn pits are a method of open-air waste management that was common during military operations in Iraq, Afghanistan, and other regions in Southwest Asia. Veterans returning from deployment have reported respiratory symptoms, potentially from exposure to burn pit smoke, yet compre...
Effects of lake water-level alteration on physical habitat and biological assemblages
(PRESENTATION) [Presented : Jun 07, 2024]
Altered lake hydrology is an emerging, widespread threat as changing climate conditions and increasing human water use place greater pressure on water resources. Dam and land use management can significantly alter lake water-level regimes and flow characteristics, which in turn c...
A Multi-criteria Geographic Information System Screening Approach for Prioritizing Response Activities Following a Chemical, Biological, or Radiological Incident
(PRESENTATION) [Presented : Dec 07, 2023]
This presentation describes the development of a decision support tool, the Priority Response Environmental Screening Tool (PRESTO), that was designed to provide a framework for analyzing geospatial information. The objective of a PRESTO analysis is to assist the U.S. Environment...
Systematic Evidence Map of the Epidemiological Evidence for Health Effects of Ethylbenzene
(PRESENTATION) [Presented : Sep 18, 2022]
Background & Aim: Ethylbenzene is an aromatic hydrocarbon widely used in consumer and industrial applications, including as styrene feedstock and in paints, glues, and fuels. Given that ethylbenzene is one of the most highly emitted hazardous air pollutants, it is relevant to...
External Peer Review Activities for Pfna Integrated Risk Information System (IRIS) Assessment (July/August 2024)
[To be published : Aug 01, 2024]
<h3>Meeting Objective</h3> <p>To facilitate the independent external peer review of the draft PFAS IRIS assessments, U.S. Environmental Protection Agency (EPA) contracted with ERG to run a public meeting. This website serves as a resource for the peer review activities associa...
R-based Tools to Perform Quality Control Procedures, Summarize, and Visualize Continuous Sensor Data
(PRESENTATION) [Presented : Jun 03, 2024]
Overview presentation of two R Shiny applications. One application is geared towards quality control and consistent formatting of continuous sensor data. The other application allows users to summarize and visualize their continuous sensor data. The presentation provides examples...
Climate change could negate U.S. forest ecosystem service benefits gained through reductions in nitrogen and sulfur deposition
(JOURNAL) [Published : May 10, 2024]
Climate change and atmospheric deposition of nitrogen (N) and sulfur (S) impact the health and productivity of forests. Here, we explored the potential impacts of these environmental stressors on ecosystem services provided by future forests in the contiguous U.S. We found that a...
The Road From Animal Models to New Approach Methods for Protecting Human and Animal Health
(PRESENTATION) [Presented : Feb 27, 2024]
The Road From Animal Models to New Approach Methods for Protecting Human and Animal Health &nbsp; Barbara L. F. Kaplan1, Alan M. Hoberman2, William Slikker Jr3, Mary Alice Smith4, Emanuela Corsini5, Thomas B. Knudsen6, M. Sue Marty7, Sonya K. Sobrian8, Suzanne C. Fitzpatrick9, Ma...
Machine Learning in Public Health
(PRESENTATION) [Presented : Apr 04, 2024]
N/A
New Approach Methods for Characterizing Exposure Pathways
(PRESENTATION) [Presented : Apr 02, 2024]
This is a lecture presentation to public health students in the Gilling School of Public Pealth at University of North Carolina at Chapel Hill.
How to Identify Lead Free Certification Marks for Pipes, Fittings, Fixtures, Solder, and Flux Used for Drinking Water
(SUMMARY) [Published : Jun 11, 2024]
On September 1, 2020, EPA published the final regulation, Use of Lead Free Pipes, Fittings, Fixtures, Solder, and Flux for Drinking Water. EPA made&nbsp; the conforming changes to existing regulations based on the Reduction&nbsp; of Lead in Drinking Water Act of 2011 and the Comm...
Using conceptual model diagrams as rapid evidence screening and evaluation tools
(PRESENTATION) [Presented : Mar 09, 2021]
A key part of the problem formulation phase of environmental assessment is the development of conceptual model diagrams. These diagrams, which explicitly illustrate hypothesized pathways between sources, stressors, and responses relevant to the focal issue, are used in scoping an...
National Aquatic Resource Surveys (NARS) Data for Addressing Research Questions at Broad Spatial and Temporal Scales
(PRESENTATION) [Presented : Jun 06, 2024]
The National Aquatic Resource Surveys (NARS) program, a collaboration among United States Environmental Protection Agency (US EPA) Office of Water, Office of Research and Development (ORD), and states and tribes, assesses progress towards the objective of the Clean Water Act thro...
Groundwater nitrate contamination (SSWR.405.1 and SSWR.405.4)
(PRESENTATION) [Presented : Jun 05, 2024]
EPA-ORD-CPHEA's Michael Pennino and Jana Compton were invited to present on groundwater nitrate at SSWR&rsquo;s Quarterly Research Area Coordination Team (RACT) meeting for the Nutrients topic SSWR.4 on June 5, &nbsp;2024.&nbsp; This meeting brings together the research coordinat...
How have states addressed algal taxonomic issues in their datasets?
(PRESENTATION) [Presented : Jun 02, 2024]
Diatoms and soft algae have been collected by state monitoring programs across the United States to assess the biological condition of lotic and lentic water bodies. Some of the state programs have long-term records (i.e., decades) of algal taxonomic data. Over time, changes in l...