Ai
Created page with "== Introduction == Air pollution is a significant environmental issue that affects the health and well-being of people and ecosystems worldwide. It involves the introduction of harmful or excessive quantities of substances, including gases, particulates, and biological molecules, into the Earth's atmosphere. These pollutants can be either natural, such as volcanic ash, or created by human activities, such as the burning of fossil fuels. Image:Detail-38091.jpg|thumb|ce..."
