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The people of Washington State care about the quality of our air. In response to that concern, the Department of Natural Resources (DNR), Department of Ecology (Ecology), U.S. Forest Service (USFS), National Park Service (NPS), Bureau of Land Management (BLM), participating…
Person:
Year: 2019
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Prescribed Fire, Regulations and Legislation, Safety
Region(s): Northwest
Keywords: Washington DNR Smoke Management Plan, Washington, smoke management plan, burning permits, smoke intrusion

Wildland fires (WLF) have become more frequent, larger, and severe with greater impacts to society and ecosystems and dramatic increases in firefighting costs. Forests throughout the range of ponderosa pine in Oregon and Washington are jeopardized by the interaction of…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Planning, Prescribed Fire, Wildland-Urban Interface (WUI)
Region(s): Northwest
Keywords: wildland fire, Oregon, Washington, ponderosa pine, Pinus ponderosa, resistance, resilience, drought

Uncertainty in pre‐industrial aerosol emissions, including fires, is one of the largest sources of uncertainty in estimating anthropogenic radiative forcing. Here we quantify the range in aerosol forcing associated with uncertainty in the location and magnitude of pre‐industrial…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: fires, aerosol radiative forcing, pre-industrial aerosol, regional aerosol impacts

Attribution studies have identified a robust anthropogenic fingerprint in increased 21st century wildfire risk. However, the risks associated with individual aspects of anthropogenic aerosol and greenhouse gases (GHG) emissions, biomass burning and land use/land cover change…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Fire Behavior, Hazard and Risk, Weather
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: extreme fire weather, atmospheric science, attribution, climate change, climate change impacts, greenhouse gas, aerosol, anthropogenic change

Exposure to wildfire smoke continues to be a growing threat to public health, yet the chemical components in wildfire smoke that primarily drive toxicity and associated disease are largely unknown. This study utilized a suite of computational approaches to identify groups of…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Models, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: air pollution, biomass burning, complex mixtures, computational toxicology, pulmonary effects, mixtures toxicology, public health, toxicity, smoke exposure

Wildfires have frequently occurred in the western United States (US) during the summer and fall seasons in recent years. This study measures the PM2.5 infiltration factor in seven residences recruited from five dense communities in Seattle, Washington, during a 2020 wildfire…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Fire Occurrence
Region(s): Northwest
Keywords: PM - particulate matter, PM2.5, wildfire, wood smoke, portable air cleaners, indoor air quality, Seattle, infiltration

Smoke from wildland fire presents a serious and growing concern. Mirroring global trends in recent decades, many areas of the US are experiencing increasing wildfire size, severity, and frequency. The health hazard of smoke from wildland fire has been well-documented (see…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Communications, Economics, Emissions and Smoke, Prescribed Fire, Social Science
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: public perceptions, wildfire, managed fire, public tolerance of smoke, literature review, public health, manager perceptions, NWFSC - Northwest Fire Science Consortium

Wildland fires can emit substantial amounts of air pollution that may pose a risk to those in proximity (e.g., first responders, nearby residents) as well as downwind populations. Quickly deploying air pollution measurement capabilities in response to incidents has been limited…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: wildland fire, wildfire, sensors, performance, PM - particulate matter, CO - carbon monoxide, CO2 - carbon dioxide, O3 - ozone, air pollution, EPA - Environmental Protection Agency

Wildfires can have rapid and long-term effects on air quality, human health, climate change, and the environment. Smoke from large wildfires can travel long distances and have a harmful effect on human health, the environment, and climate in other areas. More recently, in 2018–…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Occurrence, Mapping, Monitoring and Inventory, Weather
Region(s): California, Great Basin, Northwest, International
Keywords: air pollution, CALIPSO, Sentinel-5P, biomass burning, black carbon, Brazil, Australia

Although the characteristics of biomass burning events and the ambient ecosystem determine emitted smoke composition, the conditions that modulate the partitioning of black carbon (BC) and brown carbon (BrC) formation are not well understood, nor are the spatial or temporal…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Mapping, Monitoring and Inventory
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: biomass burning, remote sensing, MISR - Multi-angle Imaging SpectroRadiometer, smoke plume, particle properties, aerosols, FIREX‐AQ - Fire Influence on Regional to Global Environments and Air Quality, wildfire, smoke plume height, air quality

Recent dramatic and deadly increases in global wildfire activity have increased attention on the causes of wildfires, their consequences, and how risk from wildfire might be mitigated. Here we bring together data on the changing risk and societal burden of wildfire in the United…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Climate, Emissions and Smoke, Hazard and Risk, Models, Safety, Wildland-Urban Interface (WUI)
Region(s): California, Eastern, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest
Keywords: wildfire, air pollution, climate change, health impacts, PM2.5, PM - particulate matter, COVID-19

Prescribed fire is an important tool for maintaining the resilience of fire-dependent ecosystems. Despite broad recognition of its value, however, prescribed fire application in the western US has not been applied at the necessary levels. Past research has identified a range of…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Administration, Emissions and Smoke, Planning, Prescribed Fire, Regulations and Legislation
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: policy, collaboration, funding, incentives

Wildfires in the western U.S. are large sources of particulate matter, and the area burned by wildfires is predicted to increase in the future. Some particles released from wildfires can affect cloud formation by serving as ice nucleating particles (INPs). INPs have numerous…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: ice nucleating particles, biomass burning, wildfires, PM - particulate matter

Airborne fine particulate matter (PM2.5) represents the greatest ambient air pollution risk to health. Wildfires and managed burns, together referred to hereafter as ‘landscape’ fires, are a significant PM2.5 source in many regions worldwide, able to affect air quality in areas…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: PM2.5, PM - particulate matter, air quality, landscape fire, population mortality, AQI - Air Quality Index

Wildfires over the past 3 years have resulted in lengthy episodes of smoke inundation across major metropolitan areas in Australia, Brazil, and the United States. In 2020, air quality across the western United States reached and sustained extremely unhealthy to hazardous levels…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: Australia, Brazil, PM - particulate matter, health impacts, air quality, human health

In recent years, wildland fires have occurred more frequently and with increased intensity in many fire-prone areas. In addition to the direct life and economic losses attributable to wildfires, the emitted smoke is a major contributor to ambient air pollution, leading to…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, International, National
Keywords: wildfire smoke, wood smoke, air pollution, cardiovascular health, public health, PM - particulate matter

Wildfires are an important source of nitrous acid (HONO), a photolabile radical precursor, yet in situ measurements and quantification of primary HONO emissions from open wildfires have been scarce. We present airborne observations of HONO within wildfire plumes sampled during…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: HONO - nitrous acid, wildfires, N - nitrogen, fire plumes, hydrogen oxide

The evolution of organic aerosol (OA) and brown carbon (BrC) in wildfire plumes, including the relative contributions of primary versus secondary sources, has been uncertain in part because of limited knowledge of the precursor emissions and the chemical environment of smoke…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Monitoring and Inventory
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: biomass burning, secondary organic aerosol, brown carbon, phenolic compounds, aircraft measurements, PM2.5, wildfires, plumes

Throughout the United States, wildland firefighters respond to wildfires, performing arduous work in remote locations. Wildfire incidents can be an ideal environment for the transmission of infectious diseases, particularly for wildland firefighters who congregate in work and…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Prevention, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: wildfires, PM - particulate matter, occupational exposure, SARS-CoV-2, COVID-19, firefighters, firefighter health

Wildland firefighters are exposed to health hazards including inhaling hazardous pollutants from the combustion of live and dead vegetation (smoke) and breathe soil dust, while working long shifts with no respiratory protection. This research brief summarizes a study analyzing…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Safety
Region(s): Alaska, California, Eastern, Great Basin, Hawaii, Northern Rockies, Northwest, Rocky Mountain, Southern, Southwest, National
Keywords: PM - particulate matter, PM2.5, cardiovascular disease, lung cancer, smoke exposure, firefighter safety, relative risk

Wildfire smoke influences on air quality and atmospheric chemistry have been underscored by the increasing fire prevalence in recent years, and yet, the connection between fire, smoke emissions, and the subsequent transformation of this smoke in the atmosphere remains poorly…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Behavior, Mapping, Monitoring and Inventory
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: aerosol, FIREX‐AQ - Fire Influence on Regional to Global Environments and Air Quality, remote sensing, FRP - Fire Radiative Power, in situ monitoring, wildfire, satellite observations, gas emissions

Reactive nitrogen (Nr) within smoke plumes plays important roles in the production of ozone, the formation of secondary aerosols, and deposition of fixed N to ecosystems. The Western Wildfire Experiment for Cloud Chemistry, Aerosol Absorption, and Nitrogen (WE‐CAN) field…
Person:
Year: 2021
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Effects
Region(s): California, Great Basin, Northern Rockies, Northwest, Rocky Mountain, Southwest
Keywords: wildfire smoke, reactive nitrogen, NO - nitrogen oxide, ammonia, air quality

Wildfires in the western United States are expected to increase both in size and severity in coming decades. These trends are likely to accelerate large-scale habitat loss and fragmentation for the spotted owl in the Pacific Northwest, California, and the Southwest. All three…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fire Ecology, Fire Effects
Region(s): California, Northwest, Southwest
Keywords: spotted owl, Strix occidentalis, Strix occidentalis caurina, Strix occidentalis lucida, Strix occidentalis occidentalis, northern spotted owl, California spotted owl, Mexican spotted owl, large fires, annual area burned, habitat, fire severity, forest structure, forest composition

In order to meet preidentified objectives, prescribed burns are lit under specific conditions to produce desirable results such as favorable plant response, healthy forest and rangeland conditions for grazing and wildlife habitat, silvicultural treatments, indigenous cultural…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Emissions and Smoke, Fuels, Planning, Prescribed Fire, Restoration and Rehabilitation
Region(s): Northwest
Keywords: NWFSC - Northwest Fire Science Consortium, pile burning, broadcast burning

There has been an increasing interest in the economic health cost from smoke exposure from wildfires in the past 20 years, particularly in the north-western USA that is reflected in an emergent literature. In this review, we provide an overview and discussion of studies since…
Person:
Year: 2020
Type: Document
Source: FRAMES
Topic(s): Economics, Emissions and Smoke, Fire Effects
Region(s): California, Great Basin, Northern Rockies, Northwest, International
Keywords: BenMAP Community Edition, health impacts, literature review, Canada