👉 Outdoor fumes refer to the pollutants and chemicals released into the air from various sources outside, such as vehicle exhaust, industrial emissions, construction activities, and natural processes like wildfires or plant decay. These substances can include volatile organic compounds (VOCs), nitrogen oxides, particulate matter, and ozone, which can become airborne and disperse over wide areas. When these fumes mix with sunlight and other atmospheric conditions, they can form secondary pollutants like ground-level ozone, exacerbating air quality issues and posing health risks to humans and the environment, including respiratory problems, cardiovascular diseases, and aggravated allergies.
