Enhanced Arsenic Contents in Spring Water within the Engadine Valley (South-eastern Switzerland; Canton of Graubünden): (AOICS) - Lupine Publishers

Enhanced Arsenic Contents in Spring Water within the Engadine Valley (South-eastern Switzerland; Canton of Graubünden) by Werner Balderer in Archives of organic and inorganic chemical sciences in Lupine Publishers

Near the city of St. Moritz (Figure 1, Canton of Graubunden, Switzerland) were measured enhanced arsenic concentrations in the spring water which is used for drinking water. The investigated area is mainly formed of silicate rocks, which regionally contain arsenic-bearing minerals such as pyrite and haematite. The soil percolation water is contaminated with arsenic up to 120 micrograms per litre. These observed concentrations are largely above the internationally recommended limiting value of 10μg/l. The sources of arsenic are supposed to be related to the occurrence of pyrite iron ore minerals and arsenic sulphur-minerals, such as arseno-pyrite (FeAsS) and CoAsS, within the crystalline rocks.

http://www.lupinepublishers.com/aoics/abstracts/AOICS.MS.ID.000142.php
http://www.lupinepublishers.com/aoics/fulltext/AOICS.MS.ID.000142.php 
http://www.lupinepublishers.com/aoics/pdf/AOICS.MS.ID.000142.pdf