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Miriam Calkins

Adjunct Assistant Professor in the Division of Environmental Natural Science
Environmental Natural Science

Selected Publications


Evaluating urinary metabolic profiles with wildland-urban-interface (wui) fire exposure among male firefighters: a comparison with municipal structure fires (msf).

Journal Article Environmental health : a global access science source · November 2025 BackgroundFirefighters have frequent exposure to carcinogens and an increased risk of cancer. Wildland-urban interface (WUI) fires, which involve both structures and undeveloped wildland fuels, pose unique challenges to the health of firefighters. ... Full text Cite

Per- and polyfluoroalkyl substances (PFAS) and microRNA: An epigenome-wide association study in firefighters.

Journal Article Environmental research · August 2025 The occupation of firefighting is classified as a Group 1 carcinogen. Increased cancer risk among firefighters may be partly attributable to increased occupational exposure to a range of chemicals, including per- and polyfluoroalkyl substances (PFAS). Some ... Full text Cite

The Fire Fighter Cancer Cohort Study: Protocol for a Longitudinal Occupational Cohort Study.

Journal Article JMIR research protocols · April 2025 BackgroundFirefighters are at an increased risk of cancer and other health conditions compared with the general population. However, the specific exposures and mechanisms contributing to these risks are not fully understood. This information is cr ... Full text Cite

Evaluation of Passive Silicone Samplers Compared to Active Sampling Methods for Polycyclic Aromatic Hydrocarbons During Fire Training

Journal Article Toxics · February 1, 2025 Firefighters are occupationally exposed to many chemicals, including polycyclic aromatic hydrocarbons (PAHs), which are formed by the incomplete combustion of organic matter during fire response and training activities. However, due to the harsh environmen ... Full text Cite

Epigenetic Modifications Associated With Wildland-Urban Interface (WUI) Firefighting.

Journal Article Environmental and molecular mutagenesis · January 2025 Wildland-urban interface (WUI) firefighting involves exposure to burning vegetation, structures, and other human-made hazards, often without respiratory protection. Response activities can last for long periods of time, spanning multiple days or weeks. Epi ... Full text Cite

Firefighter- and Fire Department-Level Barriers and Promoters of Physical Activity and Fitness Among Volunteer Firefighters: A Qualitative Study Using Semistructured Interviews.

Journal Article Journal of occupational and environmental medicine · December 2024 ObjectiveTo describe volunteer firefighters' perspectives on how firefighter- and fire department-level factors influence their physical activity and fitness.MethodsFirefighters (n = 28) were interviewed, stratified by their years of fire ... Full text Cite

Prevalence and predictors of colon and prostate cancer screening among volunteer firefighters: The United States Firefighter Cancer Assessment and Prevention Study.

Journal Article American journal of industrial medicine · May 2024 BackgroundAlthough firefighters have increased risk for colon and prostate cancer, limited information exists on screening practices for these cancers in volunteer firefighters who compose two-thirds of the US fire service. We estimated the preval ... Full text Cite

Firefighting, per- and polyfluoroalkyl substances, and DNA methylation of genes associated with prostate cancer risk.

Journal Article Environmental and molecular mutagenesis · January 2024 Prostate cancer is the leading incident cancer among men in the United States. Firefighters are diagnosed with this disease at a rate 1.21 times higher than the average population. This increased risk may result from occupational exposures to many toxicant ... Full text Cite

Occupational exposure to per- and polyfluoroalkyl substances: a scope review of the literature from 1980-2021.

Journal Article Journal of exposure science & environmental epidemiology · September 2023 BackgroundPer- and polyfluoroalkyl substances (PFAS) comprise a large group of chemicals that have been integrated into a wide variety of industrial processes and consumer products since the 1950s. Due to their profuse usage and high persistence i ... Full text Cite

Serum per- and polyfluoroalkyl substance concentrations in four municipal US fire departments.

Journal Article American journal of industrial medicine · May 2023 BackgroundFirefighters have occupational and environmental exposures to per- and polyfluoroalkyl substances (PFAS). The goal of this study was to compare serum PFAS concentrations across multiple United States fire departments to National Health a ... Full text Cite

Accuracy of an estimated core temperature algorithm for agricultural workers.

Journal Article Archives of environmental & occupational health · January 2022 There is a substantial burden of occupational health effects from heat exposure. We sought to assess the accuracy of estimated core body temperature (CBTest) derived from an algorithm that uses sequential heart rate and initializing CBT,1 Full text Cite

Perceptions of Work-Related Health and Cancer Risks Among Women Firefighters: A Qualitative Study.

Journal Article Journal of occupational and environmental medicine · December 2021 ObjectivesWe use a qualitative method to gain further insight into women firefighters' experiences, perceptions of cancer, health, and safety risks in the fire service.MethodsWe conducted six focus groups with U.S. women firefighters. Par ... Full text Cite

Per- and polyfluoroalkyl substances, epigenetic age and DNA methylation: a cross-sectional study of firefighters.

Journal Article Epigenomics · October 2021 Background: Per- and polyfluoroalkyl substances (PFASs) are persistent chemicals that firefighters encounter. Epigenetic modifications, including DNA methylation, could serve as PFASs toxicity biomarkers. Methods: With a sample size of 197 fi ... Full text Cite

Differential DNA Methylation by Hispanic Ethnicity Among Firefighters in the United States

Journal Article Epigenetics Insights · January 1, 2021 Firefighters are exposed to a variety of environmental hazards and are at increased risk for multiple cancers. There is evidence that risks differ by ethnicity, yet the biological or environmental differences underlying these differences are not known. DNA ... Full text Cite

Heat Exposure and Occupational Injuries: Review of the Literature and Implications.

Journal Article Current environmental health reports · December 2019 Purpose of reviewThe burden of heat-related adverse occupational health effects, as well as traumatic injuries, is already substantial. Projected increases in mean temperatures and extreme events may increase the risk of adverse heat health effect ... Full text Cite

A case-crossover study of heat exposure and injury risk among outdoor construction workers in Washington State.

Journal Article Scandinavian journal of work, environment & health · November 2019 Objectives The primary objective of this study was to assess the relationship between heat exposure and occupational traumatic injuries among construction workers. Methods We assessed the relationship between humidex, a measure of apparent temperature, and ... Full text Cite

Use of Aqueous Film-Forming Foams and Knowledge of Perfluorinated Compounds Among Florida Firefighters.

Journal Article Journal of occupational and environmental medicine · May 2019 Full text Cite

Associations between heat exposure, vigilance, and balance performance in summer tree fruit harvesters.

Journal Article Applied ergonomics · February 2018 BackgroundWe sought to evaluate potential mediators of the relationship between heat exposure and traumatic injuries in outdoor agricultural workers.MethodsLinear mixed models were used to estimate associations between maximum work-shift ... Full text Cite

Opportunities and Challenges for Personal Heat Exposure Research.

Journal Article Environmental health perspectives · August 2017 BackgroundEnvironmental heat exposure is a public health concern. The impacts of environmental heat on mortality and morbidity at the population scale are well documented, but little is known about specific exposures that individuals experience. Full text Cite

A Case-Crossover Study of Heat Exposure and Injury Risk in Outdoor Agricultural Workers.

Journal Article PloS one · January 2016 BackgroundRecent research suggests that heat exposure may increase the risk of traumatic injuries. Published heat-related epidemiological studies have relied upon exposure data from individual weather stations.ObjectiveTo evaluate the ass ... Full text Cite

Impacts of extreme heat on emergency medical service calls in King County, Washington, 2007-2012: relative risk and time series analyses of basic and advanced life support.

Journal Article Environmental health : a global access science source · January 2016 BackgroundExposure to excessive heat kills more people than any other weather-related phenomenon, aggravates chronic diseases, and causes direct heat illness. Strong associations between extreme heat and health have been identified through increas ... Full text Cite