DETERMINATION OF THE TOTAL HYDROCARBON CONCENTRATIONS IN THE SHIPPING CHANNEL IN THE SUNDARBANS MANGROVE FOREST OF BANGLADESH BY MODIFIED PARTITION GRAVIMETRIC TECHNIQUE

M.S.  Rahaman; H.  Ara; M.M.  Islam

doi:10.53808/KUS.SI.FRCC.2006.73-77-ls

Authors

M.S. Rahaman Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh
H. Ara Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh
M.M. Islam Department of Chemistry, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh

DOI:

https://doi.org/10.53808/KUS.SI.FRCC.2006.73-77-ls

Keywords:

total hydrocarbon concentration; sundarbans mangrove forest; partition-gravimetric technique

Abstract

To determine the level of total hydrocarbon concentrations (THCs) along the shipping channel in the Sundarbans Mangrove Forest of Bangladesh, surface water samples were collected in December 2004. Water samples were analyzed for THCs by modified Partition-Gravimetric Technique developed in this study. In this method, the detection limit for THCs was 3 mgL^-1 at room temperature with a relative error of 33.3%. At ~ 15ºC, 93% of hydrocarbons could be recovered. The THCs along the shipping channel in the Sundarbans varies between <3 mgL^-1 to 8.3 mgL^-1; the latter being observed only at Mongla Port. THCs recorded in this study were significantly lower than the maximum permissible level (10 mgL^-1). This indicates that the Sundarbans is still safe free from oil pollution..

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