Ganzhou District of Zhangye, Gansu Deepens Full-Chain Closed-Loop Regulation of Nuclear and Radiation: Focusing on 70 Nuclear Technology Utilization Units, with a 100% Closed-Loop Rate for Hazard Rectification

The Ganzhou Branch of the Zhangye Municipal Ecology and Environment Bureau in Gansu Province has recently comprehensively deepened full-chain regulation of nuclear and radiation safety within its jurisdiction, keeping a close watch on 70 nuclear technology utilization units across the district. Through refined management and source-based prevention and control, it has maintained a 100% closed-loop rate for radiation safety hazard rectification, ensuring that the regional radiation environment quality remains continuously safe and controlled.

In regulatory practice, the Ganzhou Branch has implemented a multi-dimensional linkage mechanism of “inspection, verification, service, and monitoring”:

Internal and external linkage with checklist-based case closure: focusing on four key dimensions—maintenance and operation of protective facilities, implementation of laws and regulations, emergency response capacity, and data quality of the regulatory system—it urges enterprises to carry out grid-based self-inspections, establishes three lists of “problems, responsibilities, and rectification,” and implements ledger-based closure management within deadlines.

Online and offline penetrative verification: strictly in accordance with the standards of the national nuclear technology utilization radiation safety regulatory system, it verifies one by one the personnel files, professional training records, personal dose monitoring data, and annual assessment reports, ensuring precise consistency between online system data and offline actual operating conditions; it advances the new application, modification, and renewal of radiation safety licenses by category, enhancing the efficiency of administrative approval and licensing compliance.

Training empowerment and full coverage of supervisory monitoring: it strictly enforces qualification access for radiation-related personnel, uniformly implements certified job assessment for operators of Class II ray devices, and strengthens warning education and emergency practical drills for units with Class III ray devices. At the same time, it achieves full coverage of supervisory monitoring of X-γ external exposure dose rates for radiation-related units in the jurisdiction, strengthens third-party personal dose monitoring and annual quality control verification of equipment, and implements targeted dynamic prevention and control supported by data.

Improving long-term governance mechanisms: in response to common industry pain points such as non-standard ledger records and frequent personnel turnover, it adopts a “regular inspection + random double-random spot check” mechanism to track rectification effectiveness, regularly checks national system ledgers against on-site radioactive source physical items, and ensures absolute ledger-physical consistency and ledger-ledger consistency.