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Gold Prospecting
Alluvial Gold Prospecting
Sunny Corner- Gold, amalgam and silver perhaps?
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<blockquote data-quote="Gregyem" data-source="post: 657879" data-attributes="member: 23249"><p>Right, so the methyl mercury gets into the food web at the microbial level and bioaccumulates, so on a completely different path to the metallic species. Good to know. Yeah I remember a lot of concern when there was talk of dredging Cooks River and Alexandria Canal because of the heavy metal muds. Yep its great that todays thermometers are alcohol or digital although digital units can pose WHS risks as many use button batteries which though not containing mercury have caused the death and injury of too many small children who ingested them. 20 odd years ago big glass mercury thermometers in High schools and universities was pretty commonplace.</p></blockquote><p></p>
[QUOTE="Gregyem, post: 657879, member: 23249"] Right, so the methyl mercury gets into the food web at the microbial level and bioaccumulates, so on a completely different path to the metallic species. Good to know. Yeah I remember a lot of concern when there was talk of dredging Cooks River and Alexandria Canal because of the heavy metal muds. Yep its great that todays thermometers are alcohol or digital although digital units can pose WHS risks as many use button batteries which though not containing mercury have caused the death and injury of too many small children who ingested them. 20 odd years ago big glass mercury thermometers in High schools and universities was pretty commonplace. [/QUOTE]
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Gold Prospecting
Alluvial Gold Prospecting
Sunny Corner- Gold, amalgam and silver perhaps?
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