41.   That is particularly significant at a time when metropolitan areas like Houston and Dallas-Fort Worth violate the national health standard for ozone smog.

42.   The act was a boon to large corporations with branches in many states because it shielded them from having to meet different health standards from state to state.

43.   The availability of reasonably compact equipment built to health club standards has furthered the trends.

44.   The commission added that it had found no fields that violated Mexican health standards.

45.   The electric car question has its origins in the Clean Air Act, which set tough health standards for ozone exposure.

46.   The FAA sets health standards for pilots, but not flight attendants.

47.   The dirtiest areas were given longer to meet the health standards but were expected to do more.

48.   The Fort Worth-Dallas area has struggled for decades with ozone levels that continually violate the federal health standard.

49.   The law requires consideration of the cumulative effect of pesticides on children when setting health standards.