ID W72EYF | Add to lightbox | Download Sample

INSPECTOR TESTING THE EXHAUST OF AN AUTO AT SOLDIER'S FIELD ONE OF NINE AUTO POLLUTION TEST SITES CONDUCTED FREE BY THE CITY OF CHICAGO'S ENVIRONMENTAL CONTROL DEPARTMENT. SINCE THE PROGRAM BEGAN JUNE 1, 1973, A TOTAL OF 400,789 CARS HAD BEEN VOLUNTARILY TESTED BY FEBRUARY 1, 1975