American Public Health Association: Environmental Public Health
From the APHA information regarding environmental issues and how they relate to public health as well as promotion.
National Environmental Public Health Tracking Program
As part of the Centers for Disease Control and Prevention, this program tracks data about environmental hazards and exposure concerns.
World Health Organization: Public Health and Environment
From the World Health Organization, their Public Health and Environment Program. Topics include indoor air pollution, chemical safety, climate change, water and sanitation, and environmental impact among others.