The health hazards posed by gases and dust in the air we breathe have become a matter of widespread public interest and concern. This, in turn, has led to farreaching attempts to protect people from these hazards. Federal as well as state agencies are deeply involved in efforts to clean the air outdoors and in factories, through programs which have considerable impact on our economy and on our ...

The planet earth is rich in carbon, oxygen, and hydrogen; it is third from the sun in an orbit that delivers just the right amount of heat and light; and it travels through space with a thin shell of protective ozone that has been crucial to the evolution of terrestrial-based organisms. Our environment has in recent times been seen as delicate and not to be taken for granted. The study of the i...

Molecular epidemiology has significant potential in preventing cancer and other diseases caused by environmental exposures (related to lifestyle, occupation, or ambient pollution). This approach attempts to prevent cancer by incorporating laboratory methods to document the molecular dose and preclinical effects of carcinogens, as well as factors that increases individual susceptibility to carci...