In Hampshire, we have two large ports, Portsmouth and Southampton. These ports have naval connections which means nuclear-powered vessels will occasionally visit.
The design of a nuclear-powered vessel means that an incident involving a vessel’s reactor is extremely unlikely. However, if the reactor on board a vessel suffers a serious problem and begins to leak, radioactive particles might escape into the air. There is no possibility of a “nuclear bomb” type explosion.
During more than 40 years of the UK Naval Nuclear Propulsion Programme, there has never been a reactor accident nor has any radiation incident resulted in a significant hazard to service personnel or a member of the public. However, it is important to be aware of the risk and know what to do if it were to happen.
Who will be affected?
If an incident occurred, it is unlikely this would affect people more than half a kilometre (500 meters) from the vessel, and because of the size of the naval base this would probably only affect people within the base. Legislation requires people living up to 1.5km away from an operational berth to be given prior information about a nuclear emergency which is provided in the booklets below.
Plans are in place for both evacuation should it be necessary, and for radiation monitoring of the public. These plans are exercised and developed by the Local Resilience Forum and partners. Reassurance monitoring will take place if there has been or it is likely that members of the public could have been exposed to radioactive material.
A risk to health from the ingestion, absorption, inhalation and surface contamination of skin by radioactive material. Dependant on dose and length of exposure can develop into long term health conditions.
You may be asked to shelter in your home for at least 48 hours. Make sure you have adequate supplies of:
Information on protecting yourself from radiation, including how to remove radioactive contamination from yourself.
UK Health Security Agency plays a major role in assisting the UK response to any radiation or nuclear emergency. In the event of such an emergency there would be many demands on UKHSA for information, advice and monitoring. Preparations are made by developing, maintaining and exercising arrangements for responding. Follow this link for more information.
We are the UK’s independent nuclear regulator for safety, security and safeguards. Our mission is to protect society by securing safe nuclear operations.
Click the link below to find information on how Portsmouth City Council’s plans help reduce the effect of any emergencies both in the city and county-wide, so that people can go about their lives as freely and with as much confidence as possible.
Click the link below to find information on how Southampton City Council’s plans help reduce the effect of any emergencies both in the city and county-wide, so that people can go about their lives as freely and with as much confidence as possible.
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