Document: NRC Regulatory Guide
Document ID: eb3f5778-b26b-4ba0-9962-f7101bddfff7
Document Type: regulatory_guide
Title: (Rev. 3005)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML0037/ML003739900.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.8
CFR Part: 
CFR Title: 

Content:
foods produced at locations 10-20 miles distant in the least prevalent wind direction 1 sample from major game species in areas where these provide an important source of dietary protein Semiannually or in season At time of harvestn Semiannually Gamma isotopic analysis on edible portions Gamma isotopic analysis on edible portion.n Radioiodine analysis on green leafy vegetables Gamma isotopic analysis on edible portions (Continued) ( TABLE 2 (Continued) aThe number, media, and location of sampling may very from site to site. It is recognized that, at times, it may not be possible or practical to obtain samples of the media of choice at the most desired location or time. In these instances suitable alternative media and locations may be chosen for the particular pathway in question and submitted for acceptance. Refer to Regulatory Guide 4.1, "Programs for Monitoring Radioactivity in the Environs of Nuclear Power Plants." bParticulate sample filters should be analyzed for gross beta 24 hours or more after sampling to allow for radon and thoron daughter decay. If grosi betapactivity in air or water is greater than 10 times the mean of control samples for.any medium, gamma isotopic analysis should be performed on the individual samples. cGnmrfn isotopic analysis means the identification and quantification of * gamma-emitting radionuclides that may be attributable to the' effluents from the facility., , - -% I dThe purpose of this sample is to obtain background information. If it is not practical to establish 0.cntrol locations in accordance with the distance and wind direction criteria, other sites which provide valid background data may be substituted. eCanisters for the collection of radioiodjne in air are subject to channeling. These devices should be careiully checkedibefore operation in the field or several should be mounted in series to prevent loss of iodine. tAny soil sampling and analysis program capable.of measuring 0ong-term accumulation of radioactivity,