Prolonged exposure to atmospheric pollutionEven if these are levels that are below the limits set by the European Union, it increases the risk of developing lung cancer, especially adenocarcinoma.

This is the conclusion reached by a study carried out by European researchers to verify the long-term impact of continued exposure to nitrogen oxides and particles - those with a diameter of less than 2.5 microns (PM2.5) and less than 10 micrometers (PM10) - about the risk of lung cancer.

The authors of the research have not found any contamination threshold below which the risk of lung cancer does not increase

Air emissions from vehicle traffic, industry and heating are the main sources of contamination by particulate matter, and scientists calculated the concentration of air pollution in homes and followed the new cases of lung cancer detected in the participants in the study.

In the study, published by 'The Lancet Oncology', statistical models were applied to differentiate the influence that airborne contaminants had on other risk factors such as smoking, diet and occupation.

The results of the work show that for each increase of five micrograms per cubic mere pollution of PM2.5 increased the risk of lung cancer by 18%, while for each increase of ten micrograms per cubic meter in PM10 contamination, increased 22% the risk of suffering from this neoplasm.

The authors of the research have explained that they have not found any pollution threshold below which there is no risk to health, and that this risk is maintained even when the concentrations of harmful particles remain below the limits set by the Union. European for air quality.

Lung Cancer and Indoor Air Pollution in China (November 2019).