Horizon - The Big Smoke

Seizoen: 1965 - Aflevering: 9 / 434 - Eerst uitgezonden: 12 mei 1965 - Episode ID: 457874

Nine years after the passing of the Clean Air Act, where do we stand? Scientists are gradually finding out why dirty air Is so harmful to ill persons with Dr. P. J. Lawther of Air Pollution Research Centre at St. Bartholomew's Hospital.