Some of the background information is the following. Air pollution is a mixture of natural and man-made substances in the air that we breathe. Air pollution is typically separated into 2 categories: Outdoor air pollution and indoor air pollution. Outdoor air pollution is pollution that takes place outside. Some examples of outdoor air pollution is: Tobacco smoke, Noxious gases (sulfur dioxide, nitrogen oxides), and fine particles produced by fossil fuels.
Some of the background information is the following. Air pollution is a mixture of natural and man-made substances in the air that we breathe. Air pollution is typically separated into 2 categories: Outdoor air pollution and indoor air pollution. Outdoor air pollution is pollution that takes place outside. Some examples of outdoor air pollution is: Tobacco smoke, Noxious gases (sulfur dioxide, nitrogen oxides), and fine particles produced by fossil fuels.