Oliveira, BeatrizSlezakova, KlaraPereira, Maria do CarmoFernandes, AdíliaVaz, Josiana A.Delerue-Matos, CristinaMorais, Simone2017-01-122017-01-122016M. Oliveira, K. Slezakova, M.C. Pereira;Fernandes, Adília, Vaz, Josiana A.; Delerue-Matos, C; Morais, S.(2016) - Firefighters's occupational exposure to PM2. 5 and polycyclic aromatic hydrocarbons. In PM Arezes, JP Baptista, MP Barroso, P Carneiro, P Cordeiro, N Costa, RB Melo, AS Miguel, G Perestrelo (Eds.) International Symposium Occupational Safety and Hygiene, 2016. Guimarães. p. 73-76. ISBN 978-1-138-02942-2978-1-138-02942-2http://hdl.handle.net/10198/13753This study collected the personal PM2.5 air fraction in fifteen healthy and no-smoking firefighters during their normal shift inside four Portuguese fire stations. Indoor PM2.5 levels varied between 0.05 to 1.04 µg/m3. Polycyclic Aromatic Hydrocarbons (PAHs) are known for their ubiquity and toxicity, being some of them classified as carcinogenic and possible carcinogens to humans. Firefighters’ personal PM2.5-bound total PAH concentrations ranged between 35.8 to 294 ng/m3 with total carcinogenic PAHs accounting with 12% to the total PAHs. Benzo[a]pyrene, the PAH biomarker of carcinogenicity, was detected in levels ranging from 6.74 × 10-2 to 1.00 ng/m3engHydrocarbonsAromatic hydrocarbonsOccupational exposurePolycyclic aromatic hydrocarbons (PAHS)Occupational risksconference paper