Document: NUREG-0800
Document ID: bb1a5a83-5b12-456c-b141-1e450c066cff
Document Type: srp
Title: ONSITE METEOROLOGICAL MEASUREMENTS PROGRAM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1818/ML18183A446.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.3
CFR Part: 
CFR Title: 

Content:
o operate the nuclear power unit safely under normal conditions and to maintain it in a safe condition under accident conditions. Adequate radiation protection must be provided to permit access to and occupancy of the control room for the duration of accident conditions. Atmospheric dispersion estimates are significant inputs in assessments performed to demonstrate compliance with this requirement. 5. 10 CFR 50.47, “Emergency plans,” and Appendix E, “Emergency Planning and Preparedness for Production and Utilization Facilities,” to 10 CFR Part 50 specify requirements for emergency preparedness planning. Some emergency preparedness planning requirements focus on determining the magnitude, and assessing the impact, of radioactive releases to the environment. Hence, methods, systems, and equipment are required for assessing and monitoring offsite consequences. Meteorological parameters provide an integral part of the data needed to establish atmospheric dispersion factors for assessing offsite doses from airborne releases of radioactive material. Meeting the requirements for measurement of meteorological parameters during an accident or anticipated operational occurrence provides assurance that those personnel responsible for managing the event will be fully informed about the potential consequences of airborne radiological releases. 6. Applicants and licensees generally show compliance with 10 CFR Part 20, Subpart D, “Radiation Dose Limits for Individual Members of the Public,” by demonstrating that the annual average concentrations of radioactive material at the boundary of the unrestricted area and at specific defined receptor locations of interest beyond the unrestricted area boundary do not exceed the values specified in Table 2, "Effluent Concentrations" of Appendix B to 10 CFR Part 20. 10 CFR Part 50, Appendix I, provides numerical guidelines for the ALARA criterion concerning radioactive material in light-water-cooled nuclear power reactor