page title goes here Risk Assessment
BDCC Download Area
Default BDCC tables, based on an annual dose limit of 1 mrem/year, are available for download in Excel and PDF formats. The summary table includes the total BDCCs for select land use (resident and indoor worker) and media (dust, air, and 3-D external exposure) combinations. The composite tables include the individual route BDCCs and the total BDCCs for select default land use and media combinations. The composite tables also include a table of toxicity values.
The following table lists all available, downloadable land use and media combinations for the summary table or composite table and the default BDCC type. The Peak BDCC option was selected for dust and 3-D external exposure, as dust is not considered to be continually contaminated. For all air, it was assumed that the contamination is continuous, and the secular equilibrium BDCC option would be the most protective.
September 2024 Tables
| Included in Summary Table | ||
|---|---|---|
| Land Use | Media | Default BDCC Type |
| Resident | Dust | Peak BDCC |
| Indoor Worker | Dust | Peak BDCC |
| Resident | Air | Secular Equilibrium |
| Indoor Worker | Air | Secular Equilibrium |
| Resident | 3-D | Peak BDCC |
| Indoor Worker | 3-D | Peak BDCC |
| You will need the free Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more. | ||||
|---|---|---|---|---|
| pCi | Bq | |||
| (TR=1E-06) | (TR=1E-06) | (TR=1E-06) | (TR=1E-06) | |
| Summary Table | (PDF) | (XLS) | (PDF) | (XLS) |
| Composite Table | (PDF) | (XLS) | (PDF) | (XLS) |