Bioaccumulation Pattern of Heavy Metals in Saltmarsh Grass (Porteresia coarctata) of Indian Sundarbans

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  • Kakoli Banerjee Centre of Biodiversity and Conservation of Natural Resources, Central University of Orissa, Koraput
  • Gahul Amin
  • Shankhadeep Chakraborty
  • Prosenjt Pramanick
  • Rajrupa Ghosh
  • Pardis Fazli
  • Sufia Zaman
  • Pavel Biswas
  • Nabonita Pal
  • Abhijit Mitra

Abstrakt

Heavy metals (Zn, Cu and Pb) in saltmarsh grass tissue inhabiting Indian Sundarbans were studied during 2011–12. The selected heavy metals in the present study area originate from municipal and industrial sources. Samples from three different sites of deltaic Sundarbans were analyzed for selected heavy metals by AAS (atomic absorption spectrophotometer). The mean values of heavy metal concentrations were highest in Zn (68.17 ± 12.11 to 112.67 ± 30.17 in 2011; 74.72 ± 11.92 to 118.46 ± 30.22 in 2012) followed by Cu (27.53 ± 4.36 to 42.47 ± 9.96 in 2011; 30.81 ± 4.40 to 45.66 ± 9.87 in 2012) and Pb (5.49 ± 1.91 to 13.23 ± 3.00 in 2011; 7.10 ± 1.95 to 15.04 ± 3.31 in 2012) in all the selected stations. Significant positive correlations were observed between tissue metals and dissolved metals, whereas significant negative correlations were observed between tissue metals and biologically available heavy metal in sediment irrespective of all stations. ANOVA results exhibit significant spatial variations in tissue metal concentrations.Keywords: Porteresia coarctata, Indian Sundarbans, Zinc, Copper, Lead

Stažení

Publikováno

2014-10-31

Číslo

Vol 4 No 3 (2014)

Sekce

Research Articles

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