Exposure information for chemicals, biologicals, radiation, and climate-related changes is provided by which of the following organizations?

• A. National Exposure Research Laboratory
• B. Centers for Disease Control and Prevention
• C. National Oceanic and Atmospheric Administration
• D. Environmental Protection Agency

Answer: (A)

Exposure information across chemicals, biologicals, radiation, and climate-related changes is produced by a unit within EPA that specializes in exposure science. The National Exposure Research Laboratory focuses on developing methods to measure and model how people and ecosystems come into contact with a wide range of stressors, and it translates that data into exposure information used for risk assessments and regulatory decisions. This makes it the most appropriate source for exposure data across these diverse categories. Other agencies have related roles—CDC deals with public health and disease exposure in outbreaks, NOAA provides climate and environmental monitoring, and EPA oversees environmental protection but relies on exposure science from NERL for this specific type of information.