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

Objective: To describe volunteer firefighters' perspectives on how firefighter- and fire department-level factors influence their physical activity and fitness.

Methods: Firefighters (n = 28) were interviewed, stratified by their years of firefighting, using an interview guide. Thematic analysis and systematic coding were used to analyze the interview transcripts.

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

Background: Firefighters 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 and Nutrition Examination Survey (NHANES) participants.

Methods: Nine serum PFAS were compared in 290 firefighters from four municipal fire departments (coded A-D) and three NHANES participants matched to each firefighter on sex, ethnicity, age, and PFAS collection year.