Disused landfill sites across Wales found toxic waste including mustard gas
Landfill sites across Wales found toxic waste including mustard gas among more than 1,500 disused sites. Environmental campaigners Greenpeace has branded the 1,572 locations "ticking time bombs".
Hundreds of the sites contain hazardous waste and only a few dozen are protectively lined according to the data revealed by Natural Resources Wales (NRW).
The organisation said it worked with councils to ensure old landfills were not a pollution risk. Its data showed landfill lies beneath homes, leisure centres, hospitals, parkland and alongside rivers.