The dangers of volcanic gases (sulfurous gas and sulfur dioxide) to the human body.

The mechanism by which sulfurous gas and sulfur dioxide gas (SO2 gas) affect the human body.

Volcanic accidents remind us of the disaster caused by the eruption of Mount Ontake in 2014. However, in terms of the number of volcanic incidents, accidents due to volcanic gas poisoning are overwhelmingly more frequent and are reported every year. Additionally, with the revision of the Active Volcano Law, local governments are obligated to ensure the safety of tourists, increasing the importance of monitoring volcanic gases. This time, I will explain the mechanisms by which volcanic gases (sulfur dioxide and sulfurous gas) affect the human body. <Sulfurous Gas and Sulfur Dioxide (SO2)> Harmful gases such as sulfurous gas and sulfur dioxide (SO2) damage the epithelial lining of the airways. This damage leads to the accumulation of inflammatory cells in the airways, causing inflammation. Due to this inflammation, the airways become sensitive, leading to airway constriction and triggering asthma attacks. The type of inflammation varies among individuals, resulting in allergic asthma or COPD. It is believed that various factors, including genetic and environmental influences, contribute to these types. Therefore, individuals have different tolerances to the gas, and there have been reports of asthma patients experiencing attacks even at low concentrations of around 0.2 ppm. Additionally, it is said that there are many undiagnosed asthma patients who are unaware of their condition.

The relationship between volcanic activity and volcanic gases.

basic information

It is possible to measure sulfur dioxide gas and sulfurous gas starting from a low concentration of 0.1 ppm. With a wireless gas concentration meter, when the gas concentration rises, it notifies relevant parties via Line about the increase in gas concentration, allowing for the sharing of information regarding the gas rise.