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ARSENIC IN MINING AREAS<br />
• Arsenic occurs naturally in rocks<br />
and soil as well as in water and air<br />
– Only 1-2 % of the Finnish<br />
bedrock contains over 10 mg/kg<br />
arsenic<br />
• Arsenic is commonly associated<br />
with ores containing metals such<br />
as gold, copper and lead<br />
• The most common arsenic<br />
minerals are arsenopyrite (FeAsS)<br />
and löllingite (FeAs 2 )<br />
• Other arsenic minerals are<br />
cobaltite (CoAsS), gersdorffite<br />
(NiAsS) and nickoline (NiAs)<br />
Sotkamo<br />
Pampalo<br />
Raisa Neitola, GTK Mintec<br />
The impacts of industry, especially<br />
mining, can results in the transfer of<br />
arsenic to air, water and soil<br />
©Loukola-Ruskeeniemi, Arseeni Suomen luonnossa<br />
ympäristövaikutukset ja riskit, 2004<br />
24.10.2012 6
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