Severn Estuary radiation levels 'not a health hazard'

Controversial plans to dump 300,000 tonnes of mud from the site of a new nuclear plant into the sea off Cardiff Bay are to be scrutinised by AMs.

Campaigners want further testing of the sediment, which will be dredged from near the disused Hinkley Point A and B power stations in Somerset.

Developers EDF insist the work presents no risk to the environment or human health.

Dr David Richards, a reader in physical geography at the University of Bristol, has carried out research on levels of radioactivity in the Severn Estuary.

He said the levels of radioactivity he detected were "not a public health hazard".