Asian Journal of Research in Chemistry

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The Assessment of Sediment Ages Determination of Bhavanapadu Mangrove Ecosystem, North Coastal Andhra Pradesh, East Coast of India


Affiliations
1 National Environmental Engineering Research Institute, Nagpur (440020), India
2 Department of Environmental Sciences, Andhra University, Visakhapatnam (530003), India
     

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The present paper aimed to study the Two 20 cm sediment cores were collected with a D-section corer in the Bhavanapadu(BP) , Meghavaram (MV) mangrove forest and analyzed for 210Pbex (excess 210Pb) in order to understand the sedimentation pattern. The activities of 210Pb along with the 208Po tracer were measured by Alpha Spectrometry on a silicon surface barrier detector connected to a multi channel analyzer. Sedimentation rates were determined applying 210Pb dating method and found to vary between 0.94-1.11 cm year-1. The highest accumulation rates were recorded near the river mouth and the lowest rates at the downstream. Assuming that the sedimentation rate values are accurate, this implies that the sediments in the upper 100 cm at Bhavanapadu (BP), Meghavaram (MV) mangrove forest were deposited during the past several years ago.


Keywords

East Coast, India, Mangrove Forest, Sedimentation Rate, Sediment Age, 210Pb, Pollution, Halophytes, Environmental Conservation, Coastal Area.
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  • The Assessment of Sediment Ages Determination of Bhavanapadu Mangrove Ecosystem, North Coastal Andhra Pradesh, East Coast of India

Abstract Views: 174  |  PDF Views: 0

Authors

G. V. Krishna Mohan
National Environmental Engineering Research Institute, Nagpur (440020), India
K. Kameswara Rao
Department of Environmental Sciences, Andhra University, Visakhapatnam (530003), India
P. V. V. Prasada Rao
Department of Environmental Sciences, Andhra University, Visakhapatnam (530003), India

Abstract


The present paper aimed to study the Two 20 cm sediment cores were collected with a D-section corer in the Bhavanapadu(BP) , Meghavaram (MV) mangrove forest and analyzed for 210Pbex (excess 210Pb) in order to understand the sedimentation pattern. The activities of 210Pb along with the 208Po tracer were measured by Alpha Spectrometry on a silicon surface barrier detector connected to a multi channel analyzer. Sedimentation rates were determined applying 210Pb dating method and found to vary between 0.94-1.11 cm year-1. The highest accumulation rates were recorded near the river mouth and the lowest rates at the downstream. Assuming that the sedimentation rate values are accurate, this implies that the sediments in the upper 100 cm at Bhavanapadu (BP), Meghavaram (MV) mangrove forest were deposited during the past several years ago.


Keywords


East Coast, India, Mangrove Forest, Sedimentation Rate, Sediment Age, 210Pb, Pollution, Halophytes, Environmental Conservation, Coastal Area.