How can batch mode be used to calculate future risk?
For future scenarios, or in the absence of age data for each residence, the Technical Review Workgroup for Metals and Asbestos (TRW) recommends that the 50-month age group be used in batch mode runs. This age result approximates the 6- to 84-month average that is calculated in single run mode. Although some slight differences result between the geometric mean blood lead concentration (PbB) and P10 value for the 50-month age group compared to the 6- to 84-month average, the differences in the results are so small that they are not expected to affect site decisions.