The areas with the most toxic landfills in England The area in England with the most toxic landfills per km ² is Sandwell (West Midlands), with one toxic landfill site for every 6.11km² [1] 1,286 landfill sites in England and Wales could contain hazardous waste [2] Walsall (West Midlands) has the second most toxic landfills with one for every 6.93km² [3] Salford, in Greater Manchester, ranks third with... Read more
