Chlorinated hydrocarbons history

Durham RW, Oliver BG. 1983. History of Lake Ontario (Canada, USA) contamination from the Niagara river by sediment radiodating and chlorinated hydrocarbon analysis. Journal of Great Lakes Research 9(2) 160-168. 

Changes were noted in the electroencephalograms (EEGs) of 50 industrial and agricultural workers within 72 hours of accidental exposure to insecticides (both organophosphate and chlorinated hydrocarbons, on separate occasions), although the relationship to work history blood cholinesterase and exposure type, duration, and severity were not mentioned.59... 

This history clearly shows how the development of flash point test methods and testers was matched to the character of the fluid being tested. Today, D56-18T (or its current embodiment) is used to characterize not volatile hydrocarbons, but mixtures of water and alcohol, HCFCs/ HFCs/HFEs (Ref. 3, Chapter 22) and alcohols/hydrocarbons, multiple HCFCs/HFCs/HFEs, chlorinated and brominated hydrocarbons (Ref. 3, Chapters 20 and 21), mixtures of HCFCs/HFCs/HFEs and chlorinated hydrocarbons, and high-boiling alcohols/glycol ethers (Ref. 3, Chapter 14). All of these materials are separately used to clean parts. 

On September 6, 1987, the European Economic Community and the United States signed a phase-out agreement for the manufacture and use of specific refrigerants containing chlorine and bromine in the hydrocarbon molecule because of the effects on the atmosphere s ozone layer. ° See Reference 20, p. 18.1, for a more detailed history of this... 

Stratospheric Ozone depletion is largely due to chlorine and bromine radicals released from halogenated hydrocarbons. This paper describes properties, emission histories and budgets of relevant substances and outlines the pertinent photochemical processes, along with a comprehensive presentation of halocarbon measurements and global distributions. 

IV. Diagnosis is based on a history of exposure and clinical presentation. Many chlorinated and aromatic hydrocarbon solvents may cause identical symptoms. 

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