This picture was taken from the North Ormesby area on a bank which forms part of the Eston Hills. The Transporter is in the centre of the picture. Off to the left the twin stacks of North Tees C power station can be seen. Haverton Hill can barely be discerned through the industrial haze. The white smoke is probably not pure steam, in some cases at least, and looks more lethal. The small group of chimneys on the right hand side is part of the South Durham Steelworks at Cargo Fleet.
During the 1950s and 60s most industry either continued with coal for fuel, or switched to fuel oil. Natural gas as beginning to make an impact and this led to a big clean up in the atmosphere. But in 1972 I would guess that at least half the houses on Teesside were still burning coal and the lower Tees Valley tended to hold the pollution from these even in the summer. It would be interesting to see a more modern picture, if this viewpoint is still a grassy bank.
Photograph and details courtesy of Fred Starr.