Pollution expert's warning over 'invisible killer' as Newcastle prepares for Clean Air Zone tolls; Anil Namdeo, a professor of air quality management at Northumbria University, compared the toxic fume crisis to the lethal smog that enveloped London in the 1950s

Byline: By, Daniel Holland Air pollution is an 'invisible killer' damaging the lives of people in the North East, an expert has warned ahead of Newcastle's Clean Air Zone CAZ [...]