2. Cars, trucks, buses, and construction equipment are the biggest source of air pollution, producing almost one-third of air pollutants.

3. While 57% of whites live in areas that violate air pollution standards, 65% of African-Americans and 80% of Hispanics live in such areas.

Some topics in this essay:
Data Results, Check PSI, air pollution, outdoor pollution, cars trucks buses, plants homes businesses, buses construction equipment, trucks buses construction, power plants homes, check psi, buses construction, construction equipment, protect ourselves, trucks buses, cars trucks, psi levels, biggest source,