Allen, David T. Department of Chemical Engineering, University of Texas, Austin, Texas.
- Particulate matter
- Other air pollutants
- Additional Readings
The World Health Organization has estimated that approximately 2.7 million deaths are attributable to air pollution each year. Among the air pollutants of greatest concern are ozone (O3), suspended particulate matter (SPM), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), lead (Pb), and other toxins. Ozone is one of the most prevalent air pollutants in large cities, and suspended particulate matter has great impact worldwide. The sources and formation of these two air pollutants are described below. A review of the distribution and concentration of air pollutants worldwide is available from the World Health Organization (see table).
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