STM Journals Peer-reviewed research from Consortium e-Learning Network

Journal of Energy, Environment & Carbon Credits

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

  1. Kakoli Banerjee
  2. Gahul Amin
  3. Shankhadeep Chakraborty
  4. Prosenjt Pramanick
  5. Rajrupa Ghosh
  6. Pardis Fazli
  7. Sufia Zaman
  8. Pavel Biswas
  9. Nabonita Pal
  10. Abhijit Mitra

Abstract

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
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