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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 8, No. 2, 2011, pp. 401-416
Bioline Code: st11037
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 8, No. 2, 2011, pp. 401-416

 en Heavy metals accumulation in plants growing in ex tin mining catchment
Ashraf, M.A.; Maah, M.J. & Yusoff, I.

Abstract

The degree of contamination by heavy metals (arsenic, copper, lead, tin and zinc) in soil and transfer to plants has been studied. Specimens of plant species from five locations in an area of 10 x 10 m were sampled with their corresponding soils. Thirty six plant species including two shallow water aquatic plants were identified. Soil and plant specimens were analyzed by using inductively coupled plasma optical emission spectrometry. It was found that metal concentration in soil was highly variable while concentration of metals in plants directly depends on the concentration of metals it was rooted. Roots showed highest metal concentration followed by leaves, shoots and flowers. Bioconcentraion factor and translocation factor were calculated, representing Cyperus rotundus L. as a potential tin-hyperaccumulator plant, previously not reported in literature. Plant Species Imperata cylindrica check for this species in other resources , Lycopodium cernuum check for this species in other resources , Melastoma malabathricum check for this species in other resources , Mimosa pudica Linn check for this species in other resources , Nelumbo nucifera check for this species in other resources , Phragmites australis check for this species in other resources L., Pteris vittata check for this species in other resources L. and Salvinia molesta check for this species in other resources , were metal accumulator while Acacia podalyriaefolia check for this species in other resources G. Don, Bulb Vanisium check for this species in other resources , Dillenia reticulate King check for this species in other resources , Eugenia reinwardtiana check for this species in other resources , Evodia roxburghiania check for this species in other resources Hk. f. clarke, Gleichenia linearis check for this species in other resources , Grewia erythrocarpa check for this species in other resources Ridl., Manihot esculenta check for this species in other resources Crantz, Paspalum conjugatum Berguis check for this species in other resources , Passiflora suberosa check for this species in other resources , Saccharum officinarum check for this species in other resources , Stenochlaena palustris check for this species in other resources (Burm.) Bedd. and Vitis trifolia check for this species in other resources Linn. were tolerated plant species. All other studied plants were excluders. Identified plant species could be useful for revegetation and erosion control in metals contaminated ex-mining sites. Morphological changes such as reduction in size, change in color and deshaping have also been observed in plant species with high metal values.

Keywords
Cyperus rotundus L.; Hyper tolerant; Hyperaccumulator; Leaves; Remediation; Root; Shoot

 
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