What happens to trihalomethanes released into the atmosphere?

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Offline efharisto

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TRIHALOMETHANES ARE A BY PRODUCT OF CHLORINATION OF WATER. ONE OF THE TRIHALOMETHANES IS COMMONLY KNOWN AS CHLOROFORM. CAN ANYONE TELL ME HOW THESE TRIHALOMETHANES REACT ONCE THEY ARE RELEASED INTO AIR AND/OR SOIL?
FURTHERMORE COULD THE PRESENCE OF CHLOROFORM IN WATER INDICATE THAT THIS WATER IS TREATED WATER [CHLORINATED] OR CAN IT BE FOUND FREELY IN THE ENVIRONMENT?
« Last Edit: 30/01/2009 21:15:45 by chris »

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Offline lancenti

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What happens to trihalomethanes released into the atmosphere?
« Reply #1 on: 02/02/2009 06:40:19 »
From what I understand, chloroform and other trihalomethanes are able to undergo what is called a free radical substitution (FRS) when hit with UV light. In the upper atmosphere, this destroys O3 or Ozone and turns it into O2.