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- Newsgroups: sci.environment
- Path: sparky!uunet!spool.mu.edu!agate!boulder!ucsu!cubldr.colorado.edu!parson_r
- From: parson_r@cubldr.colorado.edu (Robert Parson)
- Subject: Re: toxic spill remediation
- Message-ID: <1992Dec16.214327.1@cubldr.colorado.edu>
- Lines: 23
- Sender: news@ucsu.Colorado.EDU (USENET News System)
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- Organization: University of Colorado, Boulder
- References: <1992Dec15.195341.4090@head-cfa.harvard.edu> <jmullison.38.0@ucsd.edu> <JMC.92Dec16113429@SAIL.Stanford.EDU>
- Date: Thu, 17 Dec 1992 04:43:27 GMT
- Lines: 23
-
- In article <JMC.92Dec16113429@SAIL.Stanford.EDU>, jmc@SAIL.Stanford.EDU (John McCarthy) writes:
- > How was mercury used in making hats? Was it heated? Did it get
- > ionized? Probably the answers to these questions are not easy to
- > obtain. The Minimata disaster was caused by mercury that was
- > methylated.
- >
- Solutions of mercuric chloride and nitrate - in other words, Hg++ ions.
- These salts are almost as bad as methylated mercury.
- >
- > I suppose it should be possible to make a realistic assessment
- > of the amount of poisoning produced by playing with the stuff
- > in junior high school. Maybe it was trivial. Maybe it was
- > harmful though not directly observable.
- >
- Harmful effects of mercury vapor are usually due to repeated, prolonged
- exposure. If the mercury was sitting out in an open tray in a poorly-
- ventilated room there could be problems. If it was just taken out of
- a jar for a few minutes, probably not. The main hazard from playing with
- the metal is spilling it - the liquid runs into cracks and is very hard
- to clean up without special equipment (e.g. vacuum cleaners with special
- filters).
-
- Robert
-