Airborne particles are tiny solid or liquid substances that float in the air. They can come from various sources, including dust, pollen, smoke, and pollution. These particles can vary in size, with some being so small that they can only be seen with a microscope. When inhaled, airborne particles can affect human health, potentially causing respiratory issues or allergies. They can also impact the environment by contributing to climate change and affecting air quality. Monitoring and controlling airborne particles is important for maintaining a healthy atmosphere.