11.   For eight Los Angeles area companies, scrapping old cars is one method of cleaning the air.

12.   Ford officials characterized their announcement as part of a corporate commitment to clean air.

13.   Former ozone violators Memphis, Knoxville and Nashville in Tennessee have cleaned their air within the last six years.

14.   Green said a few storms should clean the air.

15.   Groscost has said he no longer has any connection with the industry, and sponsored the bill because of a commitment to clean air.

16.   Here, government requirements for unleaded gas, catalytic converters and emissions inspections have helped clean the air.

17.   Or Volvo, which is developing a car it claims will actually clean the air.

18.   Scented candles are great everywhere, to scent and clean the air.

19.   Second, HOVs may actually do very little to clean the air or foster the creation of car pools.

20.   Spitzer said his main goal is to clean the air.