Northampton MPs Sally Keeble and Brian Binley have called for a full investigation by the Department for the Environment, Food and Rural Affairs (Defra) into the pollution of the town's water supply.

BBC: Schools still shut over water bug

Lawyer Alan Andrews, of environmental organisation ClientEarth, said an estimated 4, 300 Londoners now died each year as a result of air pollution (29, 000 UK-wide, according to the Department for the Environment, Food and Rural Affairs).

BBC: News, London