Preliminary Remediation Goals for Radionuclides (PRG)

Outdoor Worker Soil Graphic and Supporting Text

Outdoor Worker. This is a long-term receptor exposed during the work day who is a full time employee working on-site and who spends most of the workday conducting maintenance activities outdoors. The activities for this receptor (e.g., moderate digging, landscaping) typically involve on-site exposures to surface soils. The outdoor worker is expected to have an elevated soil ingestion rate (100 mg per day) and is assumed to be exposed to contaminants via the following pathways: incidental ingestion of soil, external radiation from contaminants in soil, inhalation of fugitive dust . The outdoor worker is expected to be the most highly exposed receptor in the outdoor environment under commercial/industrial conditions.