Etna volcano has various cracks which endanger residents who live in the area. The cracks generate earthquakes, dislodge soil and also emit radioactive gas that may cause cancer.
A study by the National Institute of Geo-physics and Volcanology examined these gases, with the results published in the international review Frontiers in Public Health.
Italian researchers have been long analysing the Etna surroundings due to the emission of gas, known as radon, which is a type of invisible radioactive gas, is not smelled or tasted. It is considered as a very dangerous gas as studies show that there is a link between those exposed to it and lung cancer incidence.
Monitoring of the air quality near Etna started in 2015 and the analysis showed that traces of this dangerous gas were also found at residences.
The Italian institute study, led by Marco Neri, Salvatore Giammanco and Anna Leonardi, showed that traces of the gas were found mostly in homes near the most active cracks of Etna. Seismology of the rocks leads to an increase in gas emissions that pose great risk to nearby residences.