Smog Blankets Los Angeles Ca. 1969Unknown - 1969
The creation of the Environmental Protection Agency (EPA) led to a renewed emphasis on combating air pollution in the United States. In 1970, Congress passed the a stronger Clean Air Act, which established national automobile emission standards and imposed new regulations on motor vehicles.
Publisher: [Place of publication not identified] : , WPA Film Library, , 
Copyright Date: ©1969
Characteristics: 1 online resource (1 video file (0 min., 33 sec.)) : sound video file,rda