Characters of Main Plants Polluted by Mercury in Changchun City

doi:10.7523/j.issn.2095-6134.2003.4.013

Abstract

Abstract:

THg (Total mercury)concentration of typical plants in Changchun city was studied.The result indicated that plants have been contaminated by mercury to a certain extent, and difference exists in the THg content of different plant s.Hg absorbency of white poplar, willow and pine was low, w hile that of the larch was high with the elm being the highest.In different components of plants, mercury contents were in the order of :leaf > bark > stem, and the pine was leaf > stem > bark.There was positive correlat ion between different components of plants.In different sites, THg content of plants was different(road >park > contrast site), indicating that traffic was an important factor affect ing THg content of plants.THg content of plants was higher in autumn than in spring, indicat ing that plant leaf accumulates mercury with seasonal change.

Key words: Mercury, plant, Changchun city, pollution

CLC Number:

X131

Li Zhibo, Wang Qichao. Characters of Main Plants Polluted by Mercury in Changchun City[J]. , 2003, 20(4): 477-481.

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