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Chemistry & Environmental Dictionary

Автор: Kupondot от 7-10-2005, 13:53
Chemistry & Environmental Dictionary

CAA ( Clean Air Act Passed by congress to have the air "safe enough to protect the public's health" by 5/31/1975. It was amended in 1990 to require EPA to develop more stringent and specific regulations for air emissions. Pneumoconiosis associated with rheumatoid arthritis.

A positively charged. The exposure limit for a substance that should (or in the case of PEL's "shall") not be exceeded. If instantaneous monitoring is not feasible, then a 15-minute time weighted average is used. Centigrade ( Celsius The scale for measuring temperature used internationally where the of water is zero and the of water at sea level is