The combined technique of thermal and atomic absorption analyses is developed using the synthetic minerals with definite mercury-containing species (forms) as reference samples. It is shown that natural pollutants which are mainly resultant from ore-forming processes and geothermal fluids are characterized by a high level and irregular distribution of Hg concentrations and could easily be distinguished by the relatively abundant sulfide form and the presence of the high-temperature isomorphous one. By contrast, under the anthropogenic pollution only low-temperature, sorbed forms are found, whereas sulfide and isomorphous ones are quite rare or fully absent. This allowed rough estimates of anthropogenic and natural contributions to Hg pollution to be obtained.
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- Mercury Speciation in Mineral Matter as an Indicator of Sources of Contamination
V. L. Tauson
V. F. Gelety
V. I. Men’shikov
- Springer Netherlands