GB11215-1989
The general regulation for environmental radiological assessment
核辐射环境质量评价一般规定
GB 11215-1989 is a current mandatory Chinese national standard for The general regulation for environmental radiological assessment. It appears in the Construction compliance cluster with a testing methods focus and has an implementation date of Jan 1, 1990.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard is applicable to enterprises and institutions that must conduct nuclear radiation environmental quality assessments. It specifically covers units in the nuclear fuel cycle system, land-based fixed nuclear power plants and nuclear heating plants, as well as research and application units that discharge radioactive substances into the environment. It is mandatory for facilities operating at or above Class A and B laboratory levels regarding radioactive material handling.
Technical requirements
The standard establishes the general principles and technical regulations for evaluating environmental quality impacts from radioactive releases. It specifies the dose basic standards for public members, setting an annual effective dose equivalent limit for the whole body, with specific allocation shares for different facility types. The evaluation must identify the critical population group, critical radionuclides, and critical exposure pathways. Facilities are required to provide comprehensive baseline data, including topographical, hydrological, and meteorological parameters of the surrounding region. The standard mandates the collection of source term data for gaseous, liquid, and solid radioactive effluents, detailing their composition, physical-chemical forms, and emission rates under both normal and accident conditions. Furthermore, it outlines the requirements for environmental monitoring programs, emphasizing the use of standard methods and strict quality assurance protocols. The assessment must cover various exposure pathways, including atmospheric dispersion, waterborne transport, and solid waste management, to estimate both individual and collective dose equivalents.
Testing methods
The standard requires continuous or cumulative monitoring of gaseous effluents at stacks and liquid effluents at major discharge points. It mandates environmental monitoring across air, water, soil, and biological media, utilizing sampling and in-situ measurement techniques. Facilities must employ appropriate atmospheric dispersion models and aquatic diffusion models to estimate ground deposition rates and dilution factors. Quality control samples must constitute at least 10% of the total samples to ensure data reliability.
FAQs
What is the evaluation radius required by GB 11215-89?
For nuclear power plants and large/medium-sized enterprises in the nuclear fuel cycle, the standard requires an evaluation area with a radius of 80 km centered on the main radioactive pollutant discharge point.
What are the key dose limits specified in GB 11215-89?
The basic dose standard sets an annual effective dose equivalent limit of 1 mSv for the whole body (with 5 mSv/a allowed in certain years). For nuclear power plants, the predicted annual average effective dose equivalent for the critical group must not exceed 0.25 mSv under normal operating conditions.
Does GB 11215-89 apply to decommissioned nuclear facilities?
Yes, the standard requires environmental impact assessments for decommissioning, covering both the dismantling process and the post-sealed state of the facility.
The summary above provides a high-level overview of GB 11215-89. To ensure complete compliance for your nuclear facilities entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 11215-89 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Method
- CCS
- Z33
- ICS
- 27.120.30
- Competent department
- Ministry of Ecology and Environment
- Technical committee
- Ministry of Ecology and Environment