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The US EPA has developed a set of annual North American anthropogenic and fire emissions data for criteria air pollutants across 18 broad source catagories for 2002 through 2017.  The sixteen new annual emissions inventories were developed using consistent input data and met...

The declining trend in vehicle emissions has underscored the growing significance of Volatile Organic Compound (VOC) emissions from Volatile Chemical Products (VCP). However, accurately representing VOC chemistry in simplified chemical mechanisms remains challenging due to its ch...

Background and Purpose: Adrenergic receptors (AR) are the most extensive therapeutically manipulated drug receptors in the treatment of respiratory diseases, such as asthma and chronic obstructive pulmonary disease. The airways are densely innervated by AR, which are cellular rec...

The EPA Office of Research and Development’s Next Generation Emission Measurement (NGEM) program focuses on researching the deployment of lower-cost air sensors near known emissions sources. The air quality measurements collected with these sensors can be used to indicate t...

This is a broad overview presentation covering CEMM's ambient and near-source air measurement research for an international audience. The presentation includes content related to Federal Reference Methods (FRMs) and Federal Equivalent Methods (FEMs) for the NAAQS, air sensor tech...

This is the PowerPoint slide deck for the Science to Achieve Results (STAR) “Air Quality Information: Making Sense of Air Pollution Data to Inform Decisions in Underserved Communities Overburdened by Air Pollution” Funding Opportunity Informational Webinar that will b...

In the United States, the Clean Air Act requires the Environmental Protection Agency (EPA) to establish National Ambient Air Quality Standards (NAAQS) and to monitor six common air pollutants. For NAAQS compliance, air quality instruments must adhere to stringent sampling, siting...

In-situ burning (ISB) is the controlled burning of oil spilled from a vessel or pipeline. There were multiple ISB events after the Deepwater Horizon oil spill on April 20, 2010, including 410 ISBs conducted by the Coast Guard [1]. Proponents of ISB suggest that it offers a rapid ...

EPA in partnership with 10 federal, state, local, and tribal organizations sponsored a science-based challenge to encourage development of new, effective, low-cost approaches (termed "Solutions") to remove PM5 from indoor air, particularly high concentrations related to...

Secondary organic aerosol (SOA) from acid-driven reactive uptake of isoprene epoxydiols (IEPOX) contributes up to 40% of organic aerosol (OA) mass in fine particulate matter. Previous work showed substantial conversions of particulate inorganic sulfates to surface-active organosu...

The global nitrogen science-policy community lacks a holistic framework for assessing nitrogen (N) impacts on food production, ecosystems, health, and climate. This results in reduced effectiveness and societal welfare benefits in addressing N challenges and creates the potential...

Communities across the United States are enduring, often unexpectedly, the effects of extreme events, such as excessive heat, prolonged droughts, extreme floods, and wildfires. In places where contaminated sites and waste management facilities are also present, communities must c...

Above ground storage tanks/terminals provide an essential link in the transportation of fuel between national infrastructure (e.g., pipelines) and local distribution points (e.g., gas stations). Volatile components of refined gasoline/fuels (including ozone precursors and air tox...

Many studies suggest that environmental exposures, including air pollution, are associated with adverse birth outcomes. A growing body of research reports that neighborhood greenery is associated with reduced odds of adverse birth outcomes. We examine the associations between PM2...

This is a presentation on the effects of wildfire on air and water quality for the ACE webinar series

This poster, “Building Factors Influencing Indoor Air Quality During Wildfire Smoke Events,” provides an overview of the results and significance of a field study conducted in Missoula County, MT examining indoor air quality in public and commercial buildings during a...

Background and Purpose: Health effects of inhaled smoke from military burn pits include increased incidences of cardiopulmonary diseases, sinonasal disease, and cancers of the nervous system. Burn pit smoke is a complex mixture of particulate matter (PM), volatile organic compoun...

Combustion of mixed materials during open air burning of refuse or structural fires in the wildland urban interface produces emissions that worsen air quality, contaminate rivers and streams, and cause poor health outcomes including developmental effects. The zebrafish, a freshwa...

Enhanced Aquifer Recharge (EAR) is the process of enhancing the natural conveyance of water into the subsurface to augment water supplies. Karst geology offers a natural mechanism for recharge and covers 20% of the U.S. land surface. The potential impacts to groundwater flow foll...

Perfluorooctanoic acid (PFOA) and perfluorooctanoic sulfonic acid (PFOS) are two legacy per- and polyfluoroalkyl substance (PFAS). PFAS have been widely used in the past and commonly measured at various concentrations in many wastes and environmental media. Thermal treatment tech...

Presentation for the AWMA Science of PFAS Conference on characterizing PFAS thermal treatment using online mass spectrometry. In this presentation previously published results from EPA's Rainbow furnace will be discussed to provide context on formation of products of incomplete c...

Aqueous film-forming foams (AFFFs) are used in firefighting applications, and often contain per- and polyfluoroalkyl substances (PFAS), which can detrimentally impact environmental and biological health. Incineration is a potential disposal method for AFFFs, which may produce sec...

Background and Purpose: Particulate matter (PM) air pollution poses significant health risks within and beyond the respiratory system, but the physicochemical characteristics of anthropogenic PM that contribute to toxicity are not well understood. The purpose of this study was to...

This summary provides an overview of the Cleaner Indoor Air During Wildfires Challenge: Phase 2 results. This challenge was initiated through a collaborative interagency effort to bring affordable clean air to communities impacted by wildfire smoke. In Phase 1 of the challenge, s...

Historic droughts in western states driven by anthropogenic warming have resulted in an unprecedented increase in wildfire frequency and area burned. In the last few decades, fire acres burned in the United States have more than doubled, with concomitant increased risk to human h...