enviornment
Veterinarians working in the Environmental Protection Agency (EPA) study the effects of pesticides, industrial pollutants, and other contaminants on animals and people. At the U.S. Food and Drug Administration (FDA), veterinarians evaluate the safety and efficacy of medicines, medical products, pet foods and food additives. Veterinarians also work at the U.S. Fish and Wildlife Service, Environmental Protection Agency, and the National Institutes of Health (NIH) and its National Library of Medicine.