Associated with this method of gold prospecting, it is quite common to use liquid mercury in order to unite fine-grained gold into a single amalgam, which, when burned, volatilizes the mercury and forms a single gold agglomerate. This practice is particularly harmful to the workers in direct contact with such substances, as well as to the entire ecosystem since this volatile metal is easily oxidized in the environment and methylated to its most toxic form, methylmercury, which can then be incorporated into organisms through the food chain
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