Document: NUREG-1555
Document ID: 68f32ac9-8d1d-4243-8e32-3aa120bfd4e5
Document Type: esrp
Title: EXPOSURE PATHWAYS
Source: NUREG-1555
Source URL: https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1555/initial/
Revision Date: 2007-10
Chapter: 5
Section ID: 5.4.1
CFR Part: 
CFR Title: 

Content:
refers to that type of location at which the highest radiation dose is expected to occur from all appropriate pathways. (c) Source A is continuous stack release; Source B is periodic stack release, 4 times/yr at 24-hr duration each. *The values are illustrative only. NUREG-1555 5.4.2-12 October 1999 Table 5.4.2-4. Annual Dose to a Maximally Exposed Individual Location Pathway Radioiodine and Particulates in Gaseous Effluents* Total Body Nearest(a) Farm Residence, Milk Cow, and Meat Animal (3.2 mi NW)* Ground Deposit Inhalation Milk (Infant) 0.092 mrem/yr/unit <0.01 mrem/yr/unit 0.024 mrem/yr/unit Totals 0.12 mrem/yr/unit Liquid Effluents Total Body Any Organ Nearest Drinking Water-Cooling Lake Water Ingestion 0.1 mrem/yr/unit <0.1 mrem/yr/unit Nearest Fish at Cooling Lake Fish Ingestion 1.2 mrem/yr/unit 0.7 mrem/yr/unit Irrigated Foods Vegetation, Milk, and Meat (Adult) <0.1 mrem/yr/unit <0.1 mrem/yr/unit Totals 1.4 mrem/yr/unit 1.0 mrem/yr/unit Noble Gases in Gaseous Effluents* Total Body Skin Gamma Air Dose Beta Air Dose Nearest(b) site boundary (1.2 mi. S)* 4.3 mrem/yr/unit 6.8 mrem/yr/unit 6.4 mrad/yr/unit 2.6 mrad/yr/unit (a) “Nearest” refers to the location at which the highest radiation dose to an individual from all applicable pathways has been estimated. (b) “Nearest” refers to that site boundary location at which the highest radiation doses due to gaseous effluents have been estimated to occur. *The values are illustrative only. Note: These values will be converted to appropriate SI units in the final version of the ESRP. Table 5.4.2-5. Summary of Hydrologic Transport and Dilution of Liquid Releases(a) October 1999 5.4.2-13 NUREG-1555 Location Transit Time (Hours) Dilution Factor Nearest municipal water intake (Lincoln, Any State) 10* 160* Nearest shoreline (plant outfall) 0.1* 1* (a) See Regulatory Guide 1.112, Analytical Models for Estimating Radioisotope Concentrations in Different Water Bodies, (NRC 1977b). *The values are illustrative only.