What Really Matters Understanding the risks of hazardous air pollution and how to avoid it can help improve our quality of life and personal health.
Air pollution comes from both manmade and natural sources.
One of the most common air pollutants we face in the summer is ground level ozone. Ground-level ozone forms readily in the atmosphere, usually during hot summer weather. VOCs are emitted from a variety of sources, including motor vehicles, chemical plants, refineries, factories, consumer and commercial products and other industrial sources. Nitrogen oxides are emitted from motor vehicles, power plants and other sources of combustion. Air quality can be affected in many ways by the wide variety of pollutants emitted from these sources.