Wood smoke exposure of Portuguese wildland firefighters...

Research studies on wood smoke and other air pollution.

Wood smoke exposure of Portuguese wildland firefighters...

Postby Wilberforce » Sun May 21, 2017 1:17 pm

J Toxicol Environ Health A. 2017 May 19:1-9. doi: 10.1080/15287394.2017.1286896. [Epub ahead of print]

Wood smoke exposure of Portuguese wildland firefighters:
DNA and oxidative damage evaluation.

Abreu A1,2, Costa C1,2, Pinho E Silva S2, Morais S3, do Carmo Pereira M4, Fernandes A5, Moraes de Andrade V6, Teixeira JP1,2, Costa S1,2.
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Portugal is among the European Union countries most devastated by forest fires each year. In the last three decades, more than 3.8 million hectares of forest were burned. Wildland firefighters are exposed to a variety of hazards, including many toxic combustion products that may lead to deleterious health effects. Epidemiological studies showed a positive association between firefighting and several chronic diseases, including cancer. Results from biomonitoring studies in firefighters, particularly concerning genotoxicity evaluation, constitute a valuable tool for investigating important occupational hazards. Thus, the aim of this study was to assess genotoxicity in a group of wildland firefighters using the comet assay for DNA damage and oxidative stress. Both parameters were increased in firefighters compared to controls, but significance was only found for basal DNA damage. No significant influence was found regarding major confounding variables on the genotoxic endpoints studied, with the exception of age. Data obtained provide preliminary information on human health effects of wildland firefighting exposure at genetic and molecular levels. These findings may also provide new important data to serve as public awareness to the potential adverse health risks involving wildland firefighting. Implementation of security and hygiene measures in this sector as well as good practices campaigns may be crucial to decrease risk.

PMID: 28524757
DOI: 10.1080/15287394.2017.1286896
• The Surgeon General has determined that there is no safe level of exposure to ambient smoke!

• If you smell even a subtle odor of smoke, you are being exposed to poisonous and carcinogenic chemical compounds!

• Even a brief exposure to smoke raises blood pressure, (no matter what your state of health) and can cause blood clotting, stroke, or heart attack in vulnerable people. Even children experience elevated blood pressure when exposed to smoke!

• Since smoke drastically weakens the lungs' immune system, avoiding smoke is one of the best ways to prevent colds, flu, bronchitis, or risk of an even more serious respiratory illness, such as pneumonia or tuberculosis! Does your child have the flu? Chances are they have been exposed to ambient smoke!
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