Science Inventory

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Rationale: Wildfire smoke often impacts rural areas without air quality monitors, limiting assessment of health impacts. A 2008 wildfire in Pocosin Lakes National Wildlife Refuge produced massive quantities of smoke affecting eastern NC, a rural area with limited air quality moni...

Wildland fires are one of the largest sources of particulate matter (PM) to the atmosphere. Although metals constitute a small fraction of those emissions they can lead to a measurable impact of the downwind PM composition. This presentation will provide an overview of metal emis...

Wildland fires, which includes both wild and prescribed fires, and agricultural fires in sum is one of the largest sources of fine particulate matter (PM2.5) emissions to the atmosphere in the United States. Although wildland fire PM2.5 emissions are primarily composed of carbona...

The webinar was requested by the National Association of County and City Heath Officials. From their website, The National Association of County Health Officials (NACHO) was founded in 1965. In early 1984, the organization experienced remarkable growth in membership and the org...

Presentation for EPA Environmental Justice Webinar Series for Tribes and Indigenous Peoples. No Abstract

qWildfires in California have intensified in frequency, severity, and duration due to extreme weather patterns driven by climate change1,2,3. qWildfire smoke has countered trends in air quality improvements, accounting for up to 50% of ambient mass concentrations of fine particul...

Wildfire activity is increasing and can be linked to climate change effects, including rising global temperatures and more frequent drought conditions. Wildfire emissions impact human health and sensitive ecosystems, particularly in the western United States where large fire freq...

Fires that occur in the wildland urban interface (WUI) often burn structures, vehicles, and their contents in addition to biomass in the natural landscape. Because these fires burn near population centers, their emissions may have a sizeable impact on public health, necessitating...

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...

Wildfires annually burn several million ha across the U.S. and cause widespread episodes of poor air quality, associated with elevated concentrations of fine particulate matter (PM2.5) and volatile organic compounds (VOCs). In the U.S., Air Resource Advisors (ARAs) are assigned b...

Smoke impacts from Wildfire are a concern for federal, state and local officials. At-risk populations include aged adults, children, people with respiratory disease, people with cardiovascular disease, and pregnant women and fetuses. Populations suspected to be a greater risk inc...

Wildfire smoke contains hazardous levels of fine particulate matter (PM2.5), a pollutant shown to adversely effect respiratory and cardiovascular health. Estimating PM2.5 concentrations attributable to wildfires is key to understanding the extent to which wildfires contribute to ...

Wildland fires are a leading source of particulate matter and volatile organic compounds emitted to the atmosphere and a major threat to public health. Accurate modeling of air pollution from fires is needed to determine the impact on air quality and human health from fires. EPA'...

Wildfire smoke is a major source of ambient air pollution that can result in degraded visibility across large portions of the US as well as localized severe visibility impacts. Low-cost particulate matter (PM) sensors are increasingly being used by local air quality agencies and ...

Wildland fires produce smoke plumes that prompt severe regional-scale air quality concerns. These plumes are well known to contain high levels of respirable particles and organic compounds such as formaldehyde and furans. They may also contain, depending upon the vegetation type,...

Recent increases in the frequency and severity of wildfires have led to greater risk of smoke exposure to communities in the Western U.S. The current approach to wildfire smoke risk communication is typically dependent on the Air Quality Index (AQI) based on a stationary regulato...

Wildland fires have increased in magnitude over the past several decades, burning millions of acres of natural landscape each year. Over this same time, the number of communities that are adjacent to or intermixed among wildlands has increased. This intersection has led to an inc...

Wildland fire emissions are routinely estimated in the US Environmental Protection Agency&rsquo;s National Emissions Inventory, specifically for fine particulate matter (PM2.5) and precursors to ozone (O3); however, there is a large amount of uncertainty in this sector. We employ...

This presentation provides an overview of how to achieve cleaner indoor air quality during wildfire smoke events. Information on portable air cleaners for the home, do-it-yourself air cleaners, cleaner indoor air shelters is presented. This presentation also explores the new guid...

During the 2019 Fire Influence on Regional to Global Environments and Air Quality&nbsp;(FIREX-AQ) study, the NASA DC-8 carried out in situ chemical measurements in smoke plumes emitted from wildfires and agricultural fires in the contiguous United States. The DC-8 payload include...

Wildfire smoke is a global public health issue that impacts communities for days, weeks, or even months every year. This presentation will cover what is known about the chemical composition of wildfire smoke and explore its impact on air quality.

Wildland fire is a major global driver in the exchange of aerosols between terrestrial environments and the atmosphere. This exchange is commonly quantified using emission factors or the mass of a pollutant emitted per mass of fuel burned. However, emission factors for microbes a...

Wildfires are widespread disturbances that influence the structure of ecosystems in the forested landscapes of the western United States. After decades of natural resource policies that suppressed fire activity on the landscape, changes in climate and forest conditions are increa...

Ecosystems require access to key nutrients like nitrogen (N) and sulfur (S) to sustain growth and healthy function. However, excessive deposition can also damage ecosystems through nutrient imbalances, leading to changes in productivity and shifts in ecosystem structure. While wi...

This presentation provides a brief overview of EPA ORD's work to support immediate response to wildfires. ORD is developing air monitoring technology that can be quickly deployed to help partners address ground-level data gaps near wildfires. Three sensor-based systems will be lo...