“…The literature contains many other arsenic analyses of mine drainage samples from all over the world, including Mexico (Razo et al, 2004;Mendoza et al, 2006), Montana, USA (Nimick et al, 2003), Arizona, USA (Rösner, 1998), New Mexico, USA (Boulet and Larocque, 1996), South Dakota, USA (May et al, 2001), Colorado, USA (Bednar et al, 2005), Utah, USA (Bednar et al, 2005), Idaho, USA (Bednar et al, 2005), Alaska, USA (Gray and Sanzolone, 1996), Northwest Territories, Canada (Bright, Dodd and Reimer, 1996), British Columbia, Canada Crusius et al, 2003), Ontario, Canada (Azcue and Nriagu, 1995;Ross, Bain and Blowes, 1999), Manitoba, Canada (Moncur et al, 2002), Saskatchewan, Canada (Donahue and Hendry, 2003;Moldovan, Hendry and Jiang, 2001), Spain (Loredo et al, 2004;Loredo et al, 1999;Loredo et al, 2003), France (Migon and Mori, 1999;Bodénan et al, 2004), Río Pilcomayo of Bolivia-Paraguay-Argentina (Hudson-Edwards et al, 2001;Archer et al, 2005), Argentina (Williams, 2001), Tunisia (Jdid et al, 1999), Sweden (Sjöblom, Håkansson and Allard, 2004), Ecuador (Williams, 2001;Appleton et al, 2001), Germany (Zänker et al, 2002;Jakubick, Jenk and Kahnt, 2002), Australia (Ashley et al, 2003), Slovak Republic (Klukanová andRapant, 1999), Republic of Korea Woo and Choi, 2001;Jung, Thornton and Chon, 2002), Poland …”