A new Canadian study for the first time linked the toxic nanoparticles to disease, reports The Guardian and Slate.
According to scientific literature, exposure to ultrafine particles from fuel combustion would result in a further case of brain cancer per 100,000 exposed population.
This research is based on analysis of medical records of 1.9 million adults living in Canada and their exposure to pollution during twenty-five years (from 1991 to 2016). Although the risks of brain cancer due to air pollution remain minimal, Scott Weichenthal of McGill University (Canada), who led the study, estimates that "if we raise these small risks by many people, there can be many cases In a large city, for example, this figure can be significant. "
0% more risk in the city
The study shows that one year of exposure to about 10,000 nanoparticles loaded with carcinogenic chemicals per cubic centimeter, one street where cars circulate, increases the risk of brain cancer by more than 10% According to Scott Weichenthal, people living in an environment where pollution is 50,000 nanoparticles per cm3 have 50% additional risk for developing brain cancer compared to those working in a polluted air of 15,000.
professor of epidemiology and biostatistics wants to recall that he s study is only a first analysis According to Scott Weichenthal, it is necessary to multiply research on the subject to confirm or not n the hypothesis of a causal relationship
7 million deaths per year
Other scientific studies have already shown that breathing of toxic air causes effects on brain : decrease in intelligence, mental health problems
The World Health Organization even considers air pollution as " silent public health crime " and believes that it would kill 7 million people year.