Historical dose reconstruction project: estimating the population at risk

Area of Science:

• Environmental Health
• Epidemiology
• Nuclear History

Background:

• The Feed Materials Production Center (FMPC) in Ross, Ohio, released radionuclides into the environment between 1950 and 1990.
• Accurate population data is crucial for reconstructing historical radiation doses and assessing potential health impacts on surrounding communities.

Purpose of the Study:

• To develop methods for estimating the size and location of populations living near the FMPC from 1950 to 1990.
• To provide essential data for an ongoing historical dose reconstruction project by the Centers for Disease Control and Prevention (CDC).
• To inform future epidemiological studies on the relationship between FMPC radionuclide exposure and adverse health outcomes.

Main Methods:

• Utilized U.S. Census data (township and block level) from 1950-1990.
• Incorporated U.S. Geological Survey topographical maps to identify structures and potential residential areas.
• Estimated age and sex distributions for the identified populations.

Main Results:

• Developed methodologies for estimating historical population sizes and geographic distributions around the FMPC.
• Generated demographic profiles (age and sex) for the estimated populations.
• Provided foundational data for collective dose rate calculations.

Conclusions:

• The developed methods are effective for reconstructing historical population data crucial for dose assessment.
• The population estimates and demographic data are vital for evaluating the feasibility of studying health effects linked to FMPC radionuclide releases.
• This work supports public health initiatives related to environmental exposures from nuclear facilities.