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According to the mercury species with different solubilities, the analytical procedure involving sequential chemical extraction has been applied to partitioning the mercury species in soils into seven fractions. Soil samples collected from five localities in different areas (the high-mercury area, the man-made mercury-polluted area and the reference area) were analyzed for the seven mercury species. It is found that high mercury contents of soils can be attributed to both man-made Pollution and geological processes, but the two kinds of soils show obvious differences in the distribution of their mercury species.
According to the mercury species with different solubilities, the analytical procedure involving sequential chemical chemical has has applied to partitioning the mercury species in soils into seven fractions. The high-mercury area, the man-made mercury-polluted area and the reference area) were analyzed for the seven mercury species. It is found that high mercury contents of soils can be attributed to both man-made Pollution and geological processes, but the two kinds of soils show obvious differences in the distribution of their mercury species.