Atmospheric pollution refers to the presence of harmful substances in the Earth's atmosphere that can have negative impacts on human health, the environment, and climate. Sources of atmospheric pollution include emissions from vehicles, industrial processes, agriculture, and natural sources such as wildfires and volcanic eruptions. Common pollutants found in the atmosphere include particulate matter, nitrogen oxides, sulfur dioxide, carbon monoxide, ozone, and volatile organic compounds. These pollutants can lead to a variety of health issues such as respiratory problems, cardiovascular diseases, and cancer. Scientists and researchers study atmospheric pollution to understand its sources, effects, and potential solutions. This research involves measuring pollution levels, modeling the transport and transformation of pollutants in the atmosphere, and developing strategies to reduce emissions and improve air quality. The goal of this research is to protect human health, preserve ecosystems, and mitigate the impacts of climate change.