Medicine and Health Sciences Commons^™

Face-To-Face With Scorching Wildfire: Potential Toxicant Exposure And The Health Risks Of Smoke For Wildland Firefighters At The Wildland-Urban Interface, Jooyeon Hwang, Ngee-Sing Chong, Mengliang Zhang, Robert J Agnew, Chao Xu, Zhuangjie Li, Xin Xu

Journal Articles

As wildfire risks have elevated due to climate change, the health risks that toxicants from fire smoke pose to wildland firefighters have been exacerbated. Recently, the International Agency for Research on Cancer (IARC) has reclassified wildland firefighters' occupational exposure as carcinogenic to humans (Group 1). Wildfire smoke contributes to an increased risk of cancer and cardiovascular disease, yet wildland firefighters have inadequate respiratory protection. The economic cost of wildland fires has risen concurrently, as illustrated by the appropriation of $45 billion for wildfire management over FYs 2011-2020 by the U.S. Congress. Occupational epidemiological studies of wildland firefighters are crucial for …

Patient Education: How Air Quality Can Impact Health, Michelle Falcone

Family Medicine Clerkship Student Projects

No abstract provided.

Crisisready's Novel Framework For Transdisciplinary Translation: Case-Studies In Wildfire And Hurricane Response, Andrew Schroeder, Caleb Dresser, Akash Yadav, Jennifer Chan, Shenyue Jia, Caroline Buckee, Satchit Balsari

Institute for ECHO Articles and Research

Extreme weather events including wildfires and hurricanes are becoming increasingly hazardous due to climate change, and often result in transient or permanent population displacements. Disaster-related disruptions in infrastructure, workforce, wages, and social networks can combine with population displacements to result in interruptions in health care access and prolonged impacts on morbidity and mortality. The data needed to make health systems and emergency management approaches more resilient to these hazards, and more responsive to the needs of affected populations, are sequestered in silos across private corporations and public agencies. In two case studies, we describe how our research team at CrisisReady …

Observations Of Delayed Changes In Respiratory Function Among Allergy Clinic Patients Exposed To Wildfire Smoke, James Blando, Michael Allen, Hadiza Galadima, Timothy Tolson, Muge Akpinar-Elci, Mariana Szklo-Coxe

Community & Environmental Health Faculty Publications

Wildfires have increased in frequency and magnitude and pose a significant public health challenge. The principal objective of this study was to assess the impact of wildfire smoke on respiratory peak flow performance of patients exposed to two different wildfire events. This longitudinal study utilized an observational approach and a cohort study design with a patient-level clinical dataset from a local outpatient allergy clinic (n = 842). Meteorological data from a local weather station served as a proxy for smoke exposure because air quality measurements were not available. This study found that there were decreases in respiratory peak flow among …

Breathing Wildfire Smoke Can Affect The Brain And Sperm, As Well As The Lungs, Luke Montrose, Adam Schuller

Public Health and Population Science Faculty Publications and Presentations

Wildfires burning in the western U.S. are sending smoke into communities far from the fires themselves, creating hazardous air for days or weeks at a time. A lot of people are wondering: What does breathing all that smoke do to our bodies?

Wildfire smoke is a mix of chemicals and tiny particles that are small enough to evade the body’s defenses and directly affect the lungs. But the damage may not stop there.

As environmental toxicologists, we have been investigating the health effects of wildfire smoke on humans, including on parts of the body that you might not expect: sperm …

Unprecedented Migratory Bird Die-Off: A Citizen-Based Analysis On The Spatiotemporal Patterns Of Mass Mortality Events In The Western United States, Di Yang, Anni Yang, Jue Yang, Rongting Xu, Han Qiu

USDA Wildlife Services: Staff Publications

Extensive, severe wildfires, and wildfire-induced smoke occurred across the western and central United States since August 2020. Wildfires resulting in the loss of habitats and emission of particulate matter and volatile organic compounds pose serious threatens to wildlife and human populations, especially for avian species, the respiratory system of which are sensitive to air pollutions. At the same time, the extreme weather (e.g., snowstorms) in late summer may also impact bird migration by cutting off their food supply and promoting their migration before they were physiologically ready. In this study, we investigated the environmental drivers of massive bird die-offs by …

Wildfire Smoke Worsens Coronavirus Risk, Putting Firefighters In Extra Danger, Luke Montrose

Public Health and Population Science Faculty Publications and Presentations

As summer approaches, two forces of nature are on a collision course, and wildland firefighters will be caught in the middle.

New research suggests that the smoke firefighters breathe on the front lines of wildfires is putting them at greater risk from the new coronavirus, with potentially lethal effects.

At the same time, firefighting conditions make precautions such as social distancing and hand-washing difficult, increasing the chance that, once the virus enters a fire camp, it could quickly spread.

As an environmental toxicologist, I have spent the last decade expanding our understanding of how wood smoke exposure impacts human health. …

Improving Firefighter Tenability During Entrapment And Burnover: An Analysis Of Vehicle Protection Systems, Greg Penney, Daryoush Habibi, Marcus Cattani

Research outputs 2014 to 2021

When attempting to suppress severe wildfire the possibility for firefighting crews to be overrun by wildfire, known as entrapment and burnover, remains a catastrophic and all too common occurrence. While improvements have been made to vehicle protection systems to increase the safety of firefighters caught in burnover, the potential effectiveness of these systems remains limited. This study involved systematic analysis of 62 historical entrapment and burnover reports from the USA, Australian and New Zealand from 1978 to 2020 (Phase 1), and 135 simulated wildfires encompassing the 99th percentile of Australian fire weather conditions, fuel structures and terrain (Phase 2). Analysis …

Examination Of Human Health Impacts Due To Adverse Climate Events Through The Use Of Vulnerability Mapping: A Scoping Review, Michael T. Schmeltz, Peter J. Marcotullio

Publications and Research

Government officials, health professionals, and other decision makers are tasked with characterizing vulnerability and understanding how populations experience risks associated with exposure to climate-related hazards. Spatial analyses of vulnerable locations have given rise to climate change vulnerability mapping. While not a new concept, the spatial analyses of specific health outcomes remain limited. This review explores different methodologies and data that are used to assess vulnerability and map population health impacts to climate hazards. The review retrieved scholarly articles and governmental reports concerning vulnerability mapping of human health to the impacts of climate change in the United States, published in the …

A Global Meta-Analysis Of Forest Bioenergy Greenhouse Gas Emission Accounting Studies, T Buchholz, M D. Hurteau, J Gunn, David Saah

Environmental Science

The potential greenhouse gas benefits of displacing fossil energy with biofuels are driving policy development in the absence of complete information. The potential carbon neutrality of forest biomass is a source of considerable scientific debate because of the complexity of dynamic forest ecosystems, varied feedstock types, and multiple energy production pathways. The lack of scientific consensus leaves decision makers struggling with contradicting technical advice. Analyzing previously published studies, our goal was to identify and prioritize those attributes of bioenergy greenhouse gas (GHG) emissions analysis that are most influential on length of carbon payback period. We investigated outcomes of 59 previously …

Wildfire Survival Plans In Theory And Practice, Christine Eriksen, Trent D. Penman, Bronwyn L. Horsey, Ross A. Bradstock

Faculty of Science, Medicine and Health - Papers: part A

Bushfire survival plans are a valuable tool for residents living in fire-prone landscapes. Plans include assigning trigger points for action, roles for all household members, and alternate approaches should the original plan fail. Fire agencies advocate that residents write, practise and discuss these plans before the fire season. In this study we use a multiple-methods approach to examine the theoretical and actual application of bushfire survival plans in south-east Australia. First, we review agency advice regarding survival plans to determine the consistency, clarity and specificity of the advice. Second, an online survey of residents examines the relationships between types of …

Countervailing Effects Of Urbanization And Vegetation Extent On Fire Frequency On The Wildland Urban Interface: Disentangling Fuel And Ignition Effects, Owen Price, Ross A. Bradstock

Faculty of Science, Medicine and Health - Papers: part A

Fire activity has been found to follow a humped relationship with population density, but the countervailing drivers and scale effects in this relationship have not previously been teased apart. This is important because it helps us to understand which aspects of fire risk are amenable to management. The likelihood of a fire occurring at the Wildland Urban Interface (WUI) can be broken into two components: that of ignitions occurring and that of the fire spreading from the ignition to the interface. We hypothesize that urbanization is a double-edged sword because it both increases the likelihood of ignition but also protects …

The Spatial Domain Of Wildfire Risk And Response In The Wildland Urban Interface In Sydney, Australia, O F. Price, R A. Bradstock

Faculty of Science, Medicine and Health - Papers: part A

In order to quantify the risks from fire at the wildland urban interface (WUI), it is important to understand where fires occur and their likelihood of spreading to the WUI. For each of the 999 fires in the Sydney region we calculated the distance between the ignition and the WUI, the fire's weather and wind direction and whether it spread to the WUI. The likelihood of burning the WUI was analysed using binomial regression. Weather and distance interacted such that under mild weather conditions, the model predicted only a 5% chance that a fire starting >2.5 km from the interface …

Defining The Importance Of Mental Preparedness For Risk Communication And Residents Well-Prepared For Wildfire, Christine Eriksen, Timothy Prior

Faculty of Science, Medicine and Health - Papers: part A

Building on a recognised information-to-action gap in wildfire risk communication, this paper examines what being physically and mentally 'well prepared' actually means to wildfire agency staff and volunteers in charge of disseminating risk information. Using the results of an open-ended survey conducted in southeast Australia, we examine how a set of preparedness messages is interpreted. The paper demonstrates that the concept of wildfire preparedness is ambiguous, and that being 'well prepared' is a complex mix of practical and mental preparedness measures. Many of the individual interpretations of preparedness messages are found to not align with the official outlined intent. In …