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Baseline data and associations between urinary biomarkers of polycyclic aromati...
Barros, Bela; Paiva, Ana Margarida; Oliveira, Marta; Alves, Sara Elisa Brás; Esteves, Filipa; Fernandes, Adília; Vaz, Josiana A.; Slezakova, KlaraAvailable literature has found an association between firefighting and pathologic pathways leading to cardiorespiratory diseases, which have been linked with exposure to polycyclic aromatic hydrocarbons (PAHs). PAHs are highlighted as priority pollutants by the European Human Biomonitoring Initiative in occupational and non-occupational contexts. Methods This cross-sectional study is the first to simultaneously...
Firefighters’ Occupational Exposure in Preparation for Wildfire Season: Address...
Esteves, Filipa; Slezakova, Klara; Madureira, Joana; Vaz, Josiana A.; Fernandes, Adília; Morais, Simone; Pereira, Maria do CarmoThe characterization of wildland firefighters' occupational exposure must consider different exposures, including those at the fire station. The present study aimed to characterize the occupational exposure of 172 Northern Portuguese wildland firefighters in fire stations during the pre-wildfire season of 2021. The biological impact of estimated inhaled doses of PM10 and PM2.5 (indoor/outdoor) was accessed thro...
Biomonitoring of polycyclic aromatic hydrocarbons exposure and short-time healt...
Paiva, Ana Margarida; Barros, Bela; Oliveira, Marta; Alves, Sara Elisa Brás; Esteves, Filipa; Fernandes, Adília; Vaz, Josiana A.; Slezakova, KlaraHuman biomonitoring data retrieved from real -life wildland firefighting in Europe and, also, worldwide are scarce. Thus, in this study, 176 Portuguese firefighters were biomonitored pre- and post- unsimulated wildfire combating (average:12-13 h; maximum: 55 h) to evaluate the impact on the levels of urinary polycyclic aromatic hydrocarbons hydroxylated metabolites (OHPAH; quantified by high-performance liquid ...
Biomonitoring of firefighters' exposure to priority pollutant metal(loid)s duri...
Paiva, Ana Margarida; Barros, Bela; Azevedo, Rui; Oliveira, Marta; Alves, Sara Elisa Brás; Esteves, Filipa; Fernandes, Adília; Vaz, Josiana A.Wildland firefighters are exposed to metal(loid)s released during wildfires through vegetation combustion, which also promotes remobilization of accumulated anthropogenic metal(loid)s. Studies biomonitoring metal(loid)s exposure promoted exclusively by wildfire suppression activities are lacking. This work aimed to characterize, for the first time, the impact of real-life wildland firefighting operations on uri...
The Impact of Sleep on Haematological Parameters in Firefighters
Alves, Sara Elisa Brás; Silva, Francisca; Esteves, Filipa; Costa, Solange; Slezakova, Klara; Alves, Maria José; Pereira, Maria do CarmoSleep is a vital process that impacts biological functions such as cell renewal, bone regeneration, and immune system support. Disrupted sleep can interrupt erythropoiesis, leading to fewer red blood cells, reduced haemoglobin concentration, and decreased haematocrit levels, potentially contributing to haematological disorders. This is particularly concerning for shift workers for example firefighters. While pr...
Indoor air quality at portuguese firehouses
Slezakova, Klara; Esteves, Filipa; Vaz, Josiana A.; Costa, Solange; Alves, Maria José; Madureira, Joana; Barros, Bela; Fernandes, AdíliaThis work assessed firefighters’ exposure to gases pollutants in non- fire work settings during the pre-fire season as a baseline for the respective occupational exposure characterization. Indoor air sampling (total volatile organic compounds—TVOCs, ozone-O3, and carbon di oxide-CO2) was conducted for two weeks in the pre-fire season of 2021 in seven firehouses (FH1–FH7) situated in the north-interior of Portug...
Occupational exposure of firefighters in non-fire settings
Slezakova, Klara; Esteves, Filipa; Vaz, Josiana A.; Alves, Maria José; Madureira, Joana; Costa, Solange; Fernandes, AdíliaThis work assessed firefighters’ exposure to particulate matter (PM) in non-fire work settings during pre-fire season, as a baseline for the respective occupational exposure characterization. Indoor and outdoor air sampling was conducted for two weeks in pre-fire season of 2021 in seven fire corporations (FC1-FC7) in north of Portugal. PM fractions (PM2.5, PM10) were continuously monitored concurrently in indoo...
Firefighters exposure to fire emissions: Impact on levels of biomarkers of expo...
Oliveira, Marta; Costa, Solange; Vaz, Josiana A.; Fernandes, Adília; Slezakova, Klara; Delerue-Matos, Cristina; Teixeira, João Paulo FernandesFirefighters represent one of the riskiest occupations, yet due to the logistic reasons, the respective exposure assessment is one of the most challenging. Thus, this work assessed the impact of firefighting activities on levels of urinary monohydroxyl-polycyclic aromatic hydrocarbons (OHPAHs; 1-hydroxynaphthalene, 1-hydroxyacenaphthene, 2-hydroxyfluorene, 1-hydroxyphenanthrene, 1-hydroxypyrene, 3-hydroxybenzo(...
Firefighters’ biomonitoring: impact of fire combat on levels of urinary monohyd...
Oliveira, Marta; Slezakova, Klara; Fernandes, Adília; Teixeira, João Paulo Fernandes; Delerue-Matos, Cristina; Pereira, Maria do Carmo; Morais, SimoneFirefighters, one of the most hazardous occupations, are regularly exposed to complex mixtures of pollutants during fire combat. Polycyclic aromatic hydrocarbons (PAHs) are distributed between the gaseous and particulate phases of air: they are one of the most health-relevant pollutants released during fires because of their genotoxic, mutagenic, and carcinogenic properties [1]. This work aims to assess the imp...
Levels of urinary biomarkers of exposure and potential genotoxic risks in firef...
Oliveira, Marta; Delerue-Matos, Cristina; Morais, Simone; Slezakova, Klara; Pereira, Maria do Carmo; Fernandes, Adília; Costa, SolangeThis study characterizes the levels of six urinary monohydroxyl-polycyclic aromatic hydrocarbons in Portuguese firefighters directly involved in firefighting activities. Median concentrations of urinary total monohydroxyl-PAHs were predominantly higher in exposed subjects comparatively with non-exposed firefighters (3.12 versus 1.59 mu mol/mol creatinine, respectively). Urinary 1-hydroxynaphthalene and 1-hydrox...