Polycyclic aromatic hydrocarbons at fire stations: firefighters' exposure monitoring and biomonitoring, and assessment of the contribution to total internal dose

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017-12-30

Autores

Klara Slezakova (Autor) FEUP; Marta Oliveira (Autor) Outra; Maria José Alves (Autor) Outra; Adília Fernandes (Autor) Outra; João Paulo Teixeira (Autor) Outra; Cristina Delerue Matos (Autor) Outra; Maria do Carmo Pereira (Autor) FEUP; Simone Morais (Autor) Outra

Revista

Título: Journal of Hazardous Materials

Vol. 323 Nº SI - Part A

Páginas: 184-194

ISSN: 0304-3894

Editora: Elsevier

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 0 Citações

Pubmed / Medline

Classificação Científica

CORDIS: Ciências Naturais > Ciências do ambiente

FOS: Ciências médicas e da saúde > Ciências da saúde

Projetos Associados

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

Outras Informações

ID Authenticus: P-00M-BJB

DOI: 10.1016/j.jhazmat.2016.03.012

Abstract (EN): This work characterizes levels of eighteen polycyclic aromatic hydrocarbons (PAHs) in the breathing air zone of firefighters during their regular work shift at eight Portuguese fire stations, and the firefighters' total internal dose by six urinary monohydroxyl metabolites (OH-PAHs). Total PAHs (Sigma PAHs) concentrations varied widely (46.4-428 ng/m(3)), mainly due to site specificity (urban/rural) and characteristics (age and layout) of buildings. Airborne PAHs with 2-3 rings were the most abundant (63.9-95.7% Sigma PAHs). Similarly, urinary 1-hydroxynaphthalene and 1-hydroxyacenaphthene were the predominant metabolites (66-96% Sigma OH-PAHs). Naphthalene contributed the most to carcinogenic Sigma PAHs (39.4-78.1%) in majority of firehouses; benzo[a]pyrene, the marker of carcinogenic PAHs, accounted with 1.5-10%. Statistically positive significant correlations (r >= 0.733, p <= 0.025) were observed between EPAHs and urinary Sigma OH-PAHs for firefighters of four fire stations suggesting that, at these sites, indoor air was their major exposure source of PAHs. Firefighter's personal exposure to PAHs at Portuguese fire stations were well below the existent occupational exposure limits. Also, the quantified concentrations of post-shift urinary 1-hydroxypyrene in all firefighters were clearly lower than the benchmark level (0:5 recommended by the American Conference of Governmental Industrial Hygienists.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11