Airborne contaminants are tiny particles or gases that can be found in the air we breathe. These contaminants can come from various sources, including vehicle emissions, industrial processes, and natural events like wildfires. Common examples include dust, pollen, smoke, and chemical vapors. Exposure to airborne contaminants can affect human health and the environment. They can lead to respiratory issues, allergies, and other health problems. Monitoring and controlling these contaminants is essential for maintaining air quality and protecting public health, especially in urban areas where pollution levels can be higher.