The health effects of natural pollutants can range from mild irritations to severe health conditions, depending on the type and concentration of the pollutant. For example, particulate matter from wildfires can penetrate deep into the lungs and exacerbate respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD). Volcanic ash can cause respiratory issues and skin irritation, while naturally occurring radon gas, a radioactive substance, is a leading cause of lung cancer.
