The main gas released by volcanoes is water vapor, which can make up to 90% of volcanic emissions during eruptions. Water vapor is a crucial component of volcanic gases, alongside carbon dioxide, sulfur dioxide, and other trace gases. As magma rises to the surface, dissolved gases are released, and water vapor plays a significant role in the formation of volcanic plumes and ash clouds. The release of these gases can impact climate and air quality and also contributes to the formation of volcanic clouds that can affect air travel. Monitoring volcanic gases is essential for understanding volcanic activity.