RT info:eu-repo/semantics/article
T1 Characterizing Wildland Firefighters’ Thermal Environment During Live-Fire Suppression
A1 Carballo Leyenda, Ana Belén
A1 Villa, José G.
A1 López Satué, Jorge
A1 Rodriguez-Marroyo, Jose A.
A2 Educacion Fisica y Deportiva
K1 Educación Física
K1 Thermal Exposure
K1 Heat Flux
K1 Thermal Dose
K1 Heat Stress
K1 Skin Burn
K1 Attenuation Factor
AB Wildland firefighters work under adverse environments (e.g., heat and fire exposure),which contribute to increasing the heat strain. Despite this there is a paucity ofknowledge about the thermal environment in real wildfire suppression scenarios.Therefore, the main purpose of this study was to characterize the environmental thermalexposure and the risk of heat burn injuries during real wildfire suppression (n = 23).To characterize the wildland firefighter’s (n = 5) local thermal exposure, measurementsof air temperature and heat flux were performed. Heat flux measurements were madeusing four thin-planar heat flux sensors. Two were affixed on the outer surface of thegarment on the left chest and thigh. Two other sensors were placed on the innersurface of the fabric in parallel to those placed externally. Four thermal classes weredefined based on the heat flux across the inner sensors (≤1000, ≤5000, ≤7000,and >7000 W·m−2). The risk of pain and first-degree burns were calculated usingthe dose of thermal radiation method. The inner sensors mean and maximum heatflux and environment temperature were 286.7 ± 255.0 and 2370.4 ± 3004.5 W·m−2and 32.6 ± 8.9 and 78.0 ± 8.9◦C, respectively. Approximately 81, 15, and 3.5%of the exposure time the heat flux was ≤1000, >1000–5000, and >5000 W·m−2,respectively. The highest average and maximum thermal dose values were ∼94 and∼110 (kW·m−2)4/3·s. In conclusion, the thermal exposure obtained may be consideredlight. However, high thermal exposure values may be obtained in punctual moments,which can elicit first-degree burns.
PB David Andrew Low, Liverpool John Moores University, United Kingdom
LK https://hdl.handle.net/10612/19277
UL https://hdl.handle.net/10612/19277
NO Carballo-Leyenda B, Villa JG, López-Satué J and Rodríguez-Marroyo JA (2019) Characterizing Wildland Firefighters’ Thermal Environment During Live-Fire Suppression. Front. Physiol. 10:949. doi: 10.3389/fphys.2019.00949
DS BULERIA. Repositorio Institucional de la Universidad de León
RD Jul 5, 2024