Updated on 11/14/2019 at 22:20
The contamination of vehicles could have a new consequence, or at least one that was recently linked to a serious problem. It is about the development of brain cancer that could be related to exposure to these particles constantly, as postulated by a new study published in the journal Epidemiology.
The work, done by scientists at McGill University in Canada, has linked increased exposure to ultrafine particles (UPF) produced by burning fuel with an increased chance of getting brain cancer.RELATED
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This is the first research that suggests a relationship between the incidence of brain tumors and vehicle contamination, although previous work has shown that nanoparticles can enter the brain and can transport carcinogenic chemicals.
“Brain cancers are rare, but often fatal. When these small risks are multiplied by many people, suddenly there can be many cases. In a large city, it could be a significant number, ”warns one of the study's authors, Scott Weichenthal.
Ultrafine particles produced by burning fuels are related to brain cancer. (Photo: Pixabay)
The researchers analyzed the medical records and exposure to contamination of 1.9 million adult Canadians across the country between 1991 and 2016, in collaboration with researchers from Health Canada and Statistics Canada.
In total, they identified 1,400 brain tumors during the follow-up period. According to their findings, each increase of 10,000 cubic centimeters in PFUs was associated with an increase in the incidence of this type of cancer after adjusting several factors, such as sociodemographic factors. If these people also smoked or had a high body mass index, the prevalence rose even more. PM2.5 and NO2 particles were not associated with a higher incidence of brain tumors.
Weichenthal recalls that combustion-related air pollutants, especially vehicles, are present throughout the environment and large populations are exposed to them "on a regular basis." "As such, regulatory measures to reduce combustion-related nanoparticles could have a major impact on public health in Canada and around the world," he says.
Source: Emol, GDA
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