Air quality refers to the condition of the air in our environment, which can be affected by various pollutants. These pollutants can come from sources like vehicles, factories, and natural events such as wildfires. Good air quality means the air is clean and safe to breathe, while poor air quality can lead to health problems, especially for vulnerable groups like children and the elderly. Monitoring air quality is essential for public health. Organizations like the Environmental Protection Agency (EPA) track levels of harmful substances, such as carbon monoxide and particulate matter. By understanding air quality, we can take steps to reduce pollution and protect our health and the environment.