Greenhouse Study on the Phytoremediation Potential of Vetiver Grass, Chrysopogon zizanioides L., in Arsenic-Contaminated Soils

Springer Science and Business Media LLC - Tập 86 - Trang 124-128 - 2010
Rupali Datta1, Mario A. Quispe2, Dibyendu Sarkar3
1Department of Biological Sciences, Michigan Technological University, Houghton, USA
2Environmental geochemistry Laboratory, University of Texas at San Antonio, San Antonio, USA
3Department of Earth and Environmental Studies, Montclair State University, Montclair, USA

Tóm tắt

The purpose of this greenhouse study was to assess the capacity of vetiver grass to accumulate arsenic from pesticide-contaminated soils of varying physico-chemical properties. Results indicate that vetiver is capable of tolerating moderate levels of arsenic up to 225 mg/kg. Plant growth and arsenic removal efficiency was strongly influenced by soil properties. Arsenic removal was highest (10.6%) in Millhopper soil contaminated with 45 mg/kg arsenic, which decreased to 4.5 and 0.6% at 225 and 450 mg/kg, respectively. High biomass, widespread root system and environmental tolerance make this plant an attractive choice for the remediation of soils contaminated with moderate levels of arsenic.

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Springer Science and Business Media LLC

Tập 86

124-128

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