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Biomarkers are key molecular or cellular events that link a specific environmental exposure to a health outcome.

An engaging video geared to raise awareness of environmental public health and our nation's need for the Tracking Network.

Each day, people everywhere are exposed to chemicals - in their food, in the water they drink, and in the air they breathe. Some exposures are the result of accidents, disasters, or intentional attempts to cause harm. The environmental toxicology and epidemiology staff of the Health Studies Branch of CDC’s National Center for Environmental Health (NCEH) specializes in studying, investigating and assessing the extent of and risk for human exposure to environmental chemicals and toxins, and determining the risk of adverse health effects from these exposures.

Each day, people everywhere are exposed to chemicals - in their food, in the water they drink, and in the air they breathe. Some exposures are the result of accidents, disasters, or intentional attempts to cause harm. The environmental toxicology and epidemiology staff of the Health Studies Branch of CDC’s National Center for Environmental Health (NCEH) specializes in studying, investigating and assessing the extent of and risk for human exposure to environmental chemicals and toxins, and determining the risk of adverse health effects from these exposures.

Each day, people everywhere are exposed to chemicals - in their food, in the water they drink, and in the air they breathe. Some exposures are the result of accidents, disasters, or intentional attempts to cause harm. The environmental toxicology and epidemiology staff of the Health Studies Branch of CDC’s National Center for Environmental Health (NCEH) specializes in studying, investigating and assessing the extent of and risk for human exposure to environmental chemicals and toxins, and determining the risk of adverse health effects from these exposures.

Poison Center and Public Health Collaborations Community of Practice (CoP)