Document: NUREG-0800
Document ID: 112961d5-bbf7-4ebc-8a51-ee8e2292ddbc
Document Type: srp
Title: LONG-TERM DIFFUSION ESTIMATES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340585.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.5
CFR Part: 
CFR Title: 

Content:
the general public of regulatory procedures and policies. Standard review plans are not substitutes for regulatory guides or the Commission's regulations and compliance with them Is not required. The standard review plan sections are keyed to the Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants. Not all sections of the Standard Format have a corresponding review plan. Published standard review plans will be revised periodically, as appropriate, to accommodate comments and to reflect new Informa- tiorn and experience. Comments and suggestions for Improvement will be considered and should be sent to the U.S. Nuclear Regulatory Commission. Office of Nuclear Reactor Regulation, Washington. D.C. 205. materials to the atmosphere to demonstrate compliance with the numerical guides for doses contained in 10 CFR Part 50, Appendix I (Ref. 1). The following regulatory guides provide acceptable criteria for complying with this SRP section: 1. Regulatory Guide 1.109 (Ref. 2) presents identification criteria to be used for specific receptors of interest. 2. Regulatory Guide 1.111 (Ref. 3) provides criteria for characterizing atmospheric transport and diffusion conditions for evaluating the con- sequences of routine releases. Use of the model described in NUREG-0324 (Ref. 4) is acceptable. 3. Regulatory Guide 1.112 (Ref. 5) presents identification criteria to be used for release points and release characteristics. Specifically, the following information should be provided by the applicant in the Safety Analysis Report (SAR): 1. A description of the atmospheric dispersion models used by the applicant to calculate concentrations in air and amount of material deposited as a result of routine releases of radioactive gases to the atmosphere. The models should be sufficiently documented and substantiated to allow a review of their appropriateness to site, plant, and release characteristics. 2. A discussion of atmospheric diffusion parameters, such as