1. effects of DE and much less information on of both cancer and noncarcinogenic pul
2. GE. Animal studies have shown that heavy monary effects in humans. The magnitudes
3. chronic exposures to DE cause cancer and of these effects are such that the direct effects
4. noncancer Iung disease in rats but the expo- of exhaust as a single material are of concern
5. sure conditions in these studies and the primarily for occupational exposures. At