11.   The Clinton administration is taking a cautious approach toward negotiations this week on new measures to head off global warming due to air pollution.

12.   The nationwide clampdown on personal watercraft was a Clinton administration effort to increase safety and reduce noise and air pollution in the recreational areas under the National Park Service.

13.   The new study backs up previous research contending that thousands of deaths each year in the United States are directly linked to air pollution.

14.   Twelve states and the District of Columbia require motorists to use reformulated gasoline, commonly known as RFG, as a way of controlling air pollution.

15.   A city is essentially a monolithic stress machine, cranking out noise and air pollution, along with excessive speed, overcrowding, crime and rudeness.

16.   Compared to air pollution in the form of smog in many industrialised countries, the constituents of haze in Malaysia were different, he said.

17.   Health minister Bernard Kouchner called for a ban on tourist buses, considered major contributors to air pollution.

18.   Millions of dollars are lost through absenteeism, hospital expenditure and cleaning due to air pollution, the director said.

19.   Some environmental groups said that Bush has a terrible record on the environment, particularly air pollution, and questioned the motives of the new campaign.

20.   The fires cause water as well as air pollution, he said.