1.   A scorching midday sun makes the filthy air feel like an industrial furnace.

2.   Crabgrass over rock-hard dirt in Kingston, filthy air a mile and a half high in Mexico City.

3.   If the Midwestern states comply with the stricter standards, the filthy air flowing in from the midwest to the New York area would be much cleaner.

4.   In coal-mining counties, men would rather breathe filthy air than learn to operate construction equipment.

5.   Nowhere in the world, not even in Los Angeles during its most polluted years, have people lived in such filthy air, he said.