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Pal, Nabonita
- Water Hyacinth:A Unique Agent of Bioremediation
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Authors
Affiliations
1 Dept. of Oceanography, Techno India University, Salt Lake, Kolkata 700 091, IN
2 Dept. of Biotechnology, Techno India University, Salt Lake, Kolkata 700 091, IN
1 Dept. of Oceanography, Techno India University, Salt Lake, Kolkata 700 091, IN
2 Dept. of Biotechnology, Techno India University, Salt Lake, Kolkata 700 091, IN
Source
Journal of Environment and Sociobiology, Vol 12, No Sp Iss (2015), Pagination: 37-37Abstract
Water hyacinth (Eichhornia crassipes) is profoundly found in the water bodies of tropical countries. It is a menace as it chokes the water body, drainage system and kills the fishes because of oxygen depletion. The adverse impact of water hyacinth has been stated in several literatures. Apart from destroying the aesthetic value of the aquatic ecosystem, water hyacinth cluster serves as the breeding ground of several disease causing insects and pests. The species is also invasive in nature and out-compete all other aquatic species growing in its vicinity and thus decreases the biodiversity of the aquatic ecosystem. Considering this disadvantage spectrum of water hyacinth, the present research programme is a turning force to rotate the significance of water hyacinth from its disadvantage to an advantageous sector. It can be used as an agent of bioremediation because of its potential to absorb heavy metals in its body tissue. The present programme is an attempt to monitor Zn, Cu and Pb in the body tissues of water hyacinth collected from East Kolkata Wetland during November, 2014. The analysis was carried out through Atomic Absorption Spectrophotometer (AAS) after acid digestion. The order of metal accumulation is Zn > Cu > Pb.
- Study on Floral Carbon Storage Potential In the Megacity of Kolkata: A Roadmap Towards Net-Zero Carbon Emission
Abstract Views :147 |
PDF Views:0
Authors
Sana Ahmed
1,
Subrata Trivedi
2,
Nabonita Pal
1,
Prosenjit Pramanick
1,
Sufia Zaman
1,
Abhijit Mitra
3
Affiliations
1 Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India., IN
2 School of Health and Applied Sciences, Apex Professional University, NH-52, Pasighat Smart City, PIN-791102, Arunachal Pradesh, India., IN
3 Department of Marine Science, University of Calcutta, 35 B.C. Road, Kolkata-700019, India., IN
1 Department of Oceanography, Techno India University, West Bengal, EM 4 Salt Lake, Sector V, Kolkata 700091, India., IN
2 School of Health and Applied Sciences, Apex Professional University, NH-52, Pasighat Smart City, PIN-791102, Arunachal Pradesh, India., IN
3 Department of Marine Science, University of Calcutta, 35 B.C. Road, Kolkata-700019, India., IN
Source
Journal of Environment and Sociobiology, Vol 19, No 2 (2022), Pagination: 113-123Abstract
The present study was carried out during February, 2022 to assess the role played by the major urban floral species in lowering the level of near-surface atmospheric carbon dioxide at five selected sampling stations in the megacity of Kolkata. Seventeen dominant tree species common in the five sampling sites were surveyed, out of which the highest and the lowest mean value of Above Ground Stem Biomass (AGSB) was exhibited by Eucalyptus globus and Alstonia scholaris respectively. The mean Above Ground Stem Carbon (AGSC) also exhibited similar trend with highest value of 2641.03 tha -1 by Eucalyptus globusand lowest value of 53.95 tha -1 by Alstonia scholaris. The soil pH at the sampling sites ranged between 4.9 to 6.2 and the Soil Organic Carbon (SOC) ranged from 0.52 to 1.29%. The near-surface atmospheric CO2 level showed the highest value of 418 ppm (at Moulali) and the lowest value of 403 ppm (at Park Circus). The study highlights the potential of urban trees to store carbon in the form of biomass. This can be an effective roadmap to underscore the rising trend of carbon dioxide in the near-surface atmosphere of the city.Keywords
Atmospheric CO2, Urban Floral Species, Tree Biomass, Stored Carbon.References
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