Title of article :
Concentration of polybrominated diphenyl ethers (PBDEs) in sediment cores of Sundarban mangrove wetland, northeastern part of Bay of Bengal (India)
Author/Authors :
Andrea Binelli، نويسنده , , Santosh Kumar Sarkar، نويسنده , , Mousumi Chatterjee، نويسنده , , Consuelo Riva، نويسنده , , Marco Parolini، نويسنده , , Bhaskar deb Bhattacharya، نويسنده , , Asok Kumar Bhattacharya، نويسنده , , Kamala Kanta Satpathy، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
The paper presents the first comprehensive survey of congener profiles (12 congeners) of polybrominated diphenyl ethers (PBDEs) in core sediment samples (<63 μm) covering seven sites in Sundarban mangrove wetland (India). Gas-chromatographic analyses were carried out in GC–Ms/Ms for tri- to hepta- brominated congeners. Results pointed out a non-homogenous contamination of the wetland with ∑12 PBDE values ranging from 0.08 to 29.03 ng g−1, reflecting moderate to low contamination closely in conformity to other Asian aquatic environments. The general order of decreasing congener contribution to the total load was: BDE 47 > 99 > 100 > 154, similar to the distribution pattern worldwide. Although tetrabromodiphenyl ether BDE 47 was found in all samples followed by hexabromodiphenyl ether BDE-154, they were not necessarily the dominant congeners. No uniform temporal trend on PBDE levels was recorded probably due to particular hydrological characteristics of the wetland and/on non-homologous inputs from point sources (untreated municipal wastewater and local industries, electronic wastes from the dump sites, etc.) of these compounds. Because of the propensity of PBDEs to accumulate in various compartments of wildlife and human food webs, evaluation of biological tissues should be undertaken as a high priority.
Keywords :
PBDEs , sediments , BFRs , wetlands , Estuary , River Ganges
Journal title :
Marine Pollution Bulletin
Journal title :
Marine Pollution Bulletin