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Fire spread associated with violent pyrogenic convection is highly unpredictable and difficult to suppress. Wildfire-driven convection may generate cumulonimbus (storm) clouds, also known as pyrocumulonimbus (pyroCb). Research into such phenomena…
Author(s): Rachel Badlan, J. Sharples, Jason P. Evans, Richard H. D. McRae
Year Published:

Background: Maternal wildfire exposure (e.g., smoke, stress) has been associated with poor birth outcomes with effects potentially mediated through air pollution and psychosocial stress. Despite the recent hike in the intensity and frequency of…
Author(s): Sana Amjad, Dagmara Chojecki, Alvaro Osornio-Vargas, Maria B. Ospina
Year Published:

We estimated cardiopulmonary morbidity and mortality associated with wildfire smoke (WFS) fine particulate matter (PM2.5) in the Front Range of Colorado from 2010 - 2015. To estimate WFS PM2.5, we developed a daily kriged PM2.5 surface at a 15km X…
Author(s): Sheryl Magzamen, Ryan W. Gan, Jingyang Liu, Katelyn O'Dell, Bonne Ford Hotmann, Kevin Berg, Kirk Bol, Ander Wilson, Emily V. Fischer, Jeffrey R. Pierce
Year Published:

Radiological release incidents can potentially contaminate widespread areas with radioactive materials and decontamination efforts are typically focused on populated areas, which means radionuclides may be left in forested areas for long periods of…
Author(s): Kirk R. Baker, Sang Don Lee, Paul Lemieux, Scott Hudson, Benjamin N. Murphy, Jesse O. Bash, Shannon N. Koplitz, Thien Khoi V Nguyen, Wei Min Hao, Stephen P. Baker, Emily Lincoln
Year Published:

Climate change and human activities have drastically altered the natural wildfire balance in the Western US and increased population health risks due to exposure to pollutants from fire smoke. Using dynamically downscaled climate model projections,…
Author(s): Jennifer D. Stowell, Cheng-En Yang, Joshua S. Fu, Noah Scovronick, Matthew J. Strickland, Yang Liu
Year Published:

The public health emergency associated with the 2019–20 bushfires in Australia was a wake-up call to increase the resilience of our health systems to respond to climate extremes. We must combine our understanding of predictions of extreme weather…
Author(s): Aparna Lal, Mahomed Patel, Arnagretta Hunter, Christine Phillips
Year Published:

It is difficult to detect forest fires in complex backgrounds owing to the many interfering factors in forest fire smoke. In this paper, a novel method that combines Time Domain Robust Principal Component Analysis (TRPCA) and a Two-Stream Composed…
Author(s): Xiaohu Qiang, Guoxiong Zhou, Aibin Chen, Xin Zhang, Wenzhuo Zhang
Year Published:

Wildland fire activity and associated emission of particulate matter air pollution is increasing in the United States over the last two decades due primarily to a combination of increased temperature, drought, and historically high forest fuel…
Author(s): Jonathan Krug, Russell W. Long, Maribel Colón, Andrew Habel, Shawn P. Urbanski, Matthew S. Landis
Year Published:

Wildland firefighters are repeatedly exposed to elevated levels of wildland fire smoke (WFS) while protecting lives and properties from wildland fires. Studies reporting personal exposure concentrations of air pollutants in WFS during fire…
Author(s): Chieh-Ming Wu, Chi Song, Ryan Chartier, Jacob Kremer, Luke P. Naeher, Olorunfemi Adetona
Year Published:

Violent fire-driven convection can manifest as towering pyrocumulus (pyroCu) or pyrocumulonimbus (pyroCb) clouds, which can have devastating impacts on the environment and society. Their associated fire spread is erratic, unpredictable and not…
Author(s): Rachel Badlan, J. Sharples, Jason P. Evans, Richard H. D. McRae
Year Published:

wo years ago, the crew of the Po- larstern, a German icebreaker frozen into Arctic sea ice, shot a green laser up into the night. The beam’s reflected light was meant to help researchers study icy winter clouds. Instead, the beam encountered…
Author(s): Paul Voosen
Year Published:

Previous estimates of greenhouse gas emissions from Australian savanna fires have incorporated on-ground dead wood but ignored standing dead trees. However, research from eucalypt woodlands in southern Queensland has shown that the two pools of dead…
Author(s): Garry D. Cook, Adam C. Liedloff, Carl P. Meyer, Anna E. Richards, Steven G. Bray
Year Published:

Using observations and model simulations (ESM 4.1) during 1988–2018, we show large year‐to‐year variability in western U.S. PM2.5 pollution caused by regional and distant fires. Widespread wildfires, combined with stagnation, caused summer PM2.5…
Author(s): Yuanyu Xie, Meiyun Lin, Larry W. Horowitz
Year Published:

Extreme wildfire events are becoming more common and while the immediate risks of particulate exposures to susceptible populations (i.e., elderly, asthmatics) are appreciated, the long-term health effects are not known. In 2017, the Seeley Lake (SL…
Author(s): Ava Orr, Cristi A. L. Migliaccio, Mary Buford, Sarah Ballou, Christopher T. Migliaccio
Year Published:

Smouldering peat fires are reported across continents and their emissions result in regional haze crisis (large scale accumulation of smoke at low altitudes) and large carbon foot prints. Inorganic content (IC) and bulk density vary naturally in…
Author(s): Yuqi Hu, Wuquan Cui, Guillermo Rein
Year Published:

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…
Author(s): Kathleen M. Navarro, Linda Mutch
Year Published:

The Lion Fire 2011 (LF11) and Lion Fire 2017 (LF17) were similar in size, location, and smoke transport. The same locations were used to monitor both fires for ground level fine particulate matter (PM2.5). Ground level PM2.5 is used to determine the…
Author(s): Don Schweizer, Ricardo Cisneros, Kathleen M. Navarro
Year Published:

Particularly in rural settings, there has been little research regarding the health impacts of fine particulate matter (PM2.5) during the wildfire season smoke exposure period on respiratory diseases, such as influenza, and their associated…
Author(s): Erin L. Landguth, Zachary A. Holden, Jonathan M. Graham, Benjamin Stark, Elham Bayat Mokhtari, Emily Kaleczyc, Stacey Anderson, Shawn P. Urbanski, William Matt Jolly, Erin O. Semmens, Dyer A. Warren, Alan Swanson, Emily Stone, Curtis W. Noonan
Year Published:

Prescribed fire can result in significant benefits to ecosystems and society. Examples include improved wildlife habitat, enhanced biodiversity, reduced threat of destructive wildfire, and enhanced ecosystem resilience. Prescribed fire can also come…
Author(s): Molly E. Hunter, Marcos D. Robles
Year Published:

As we enter the wildfire season in the northern hemisphere, the potential for a dangerous interaction between SARS-CoV-2 and smoke pollution should be recognized and acknowledged. This is challenging because the public health threat of COVID-19 is…
Author(s): Sarah B. Henderson
Year Published: