They relate to air pollution with an increased risk of oral cancer

After cross-checking data, Taiwanese researchers found that those exposed to 40.37 micrograms (μg) per cubic meter (m3) (almost three times as recommended by the WHO) were 43% more likely to develop this disease.

According to WHO, global pollution kills three times more people than sexually transmitted diseases, tuberculosis and malaria combined.Jose Muñóz, Flickr

It is no novelty that air pollution is an enemy of global health. Exposure to it, has confirmed scientific studies, increases the risk of dementia, asthma or even diabetes. It is assumed that there is no safe level of pollution. As if that was not enough, a new problem is added to these effects: the mouth cancerThis was confirmed by a recent survey in Taiwan. (Read: Little meat, less waste and more sustainable agriculture, keys for 2050)

The study, published in the Journal of Investigative Medicine, was a datacross during the past ten years. For this, the authors collected information from 66 air quality control stations that are installed all over the country. Then they combined them with health records of more than 480,000 men over 40 years of age. Among them, there were a total of 1,167 cases of oral cancer.

The idea was to divide the participants according to the places where they lived, that is, their level of exposure to particulate PM2.5 material. Four groups came from this classification, which included data such as age, exposure to ozone, levels of other particles, when they smoked and when they consumed betelquid. The latter, which is known to increase the risk of oral cancer, is a prepraired stimulant with betel leaf, Areca nut and salted tobacco.

With this information, they were able to demonstrate that men exposed to concentrations of 40.37 micrograms (μg) per cubic meter (m3) of air or more were 43% more likely to develop the disease compared to those in contaminated areas. of 26.74 μg / m3.

This result was not encouraging because, according to the World Health Organization (WHO), the average annual levels of PM2.5 to which a person must be exposed may not exceed 10 μg / m3. The largest cities in the world such as London, however, double that limit with the pollution of their air.