An operational event at Taishan Nuclear Power Station on April 5 did not affect the plant’s safe operation, the Security Bureau said today.

The case, reported on the Taishan Nuclear Power Joint Venture Co’s website, involved the exhaust gas treatment system of the station’s Unit 1.

During a planned special operation performed by the system, the monitoring system indicated that there was a short-term release of a very small amount of gas, which was dealt with in a timely manner.  

Upon checking, it was confirmed that the gas emitted in the event only amounted to 0.00044% of the annual limit.

The bureau said the event was classified as a Level 0 deviation in accordance with the International Nuclear & Radiological Event Scale and relevant nuclear safety regulations, adding that it did not affect the unit’s safe operation, workers’ health, nearby public or the environment.

According to the radiation monitoring results from the Hong Kong Observatory, the environmental radiation levels in the city have remained normal since the occurrence.