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Encyclopedia > Emission control

Emissions control may refer to:


  Results from FactBites:
 
Automobile emissions control - Wikipedia, the free encyclopedia (1356 words)
Automobile emissions control covers all the technologies that are employed to reduce the air pollution-causing emissions produced by automobiles.
Exhaust emissions control systems were first required on 1966 model year vehicles produced for sale in the state of California, followed by the United States as a whole in model year 1968.
California emission testing laws were amended in 1998 when SB 42 was passed - a new criteria phased in was the rolling chassis exemption to which vehicle manufactured between 1973 - 1998 were subjected to emission testing.
Emission - Wikipedia, the free encyclopedia (222 words)
In physics and physical chemistry emissions are outputs of electromagnetic radiation or particles.
In physics, emission theories assumed that light leaves the object that emits it at a particular speed.
In the history of optics, light was supposed by adherents of emission theory (vision) to be emitted by the eyes.
  More results at FactBites »


 
 

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