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Vertical and horizontal variation of elemental contamination in sediments of Hooghly Estuary, India
S GHOSH, S S RAM, M BAKSHI, A CHAKRABORTY, M SUDARSHAN,
Published in Elsevier Inc.
2016
PMID: 27312987
Volume: 109
   
Issue: 1
Pages: 539 - 549
Abstract
Hooghly Estuary along with the Sunderban mangroves forms one of the most diverse ecosystems in the world. We investigated the vertical and horizontal distribution of elements at nine sampling locations in this estuary for assessing the degree of elemental contamination. The elemental concentrations were analyzed by an Energy Dispersive X-ray Flurosence spectrometer (EDXRF). A higher enrichment factor (EF) value of trace elements (V, Cr, Mn, Fe, Ni, Cu and Zn) is evident considering all the sampling locations. Geo-accumulation index (Igeo) values of all the sampling locations and core depth reveals Cr and Cu are under IgeoClass I level of contamination. The value of the pollution load index (PLI) varies between 0.94–1.65 with maximum at Chemaguri and minimum at Haldi Estuary and Petuaghat. The overall variation in elemental concentration may be due to differential discharge pattern of storm water and agricultural run-off, industrial effluent and domestic sewage. © 2016 Elsevier Ltd
About the journal
JournalData powered by TypesetMarine Pollution Bulletin
PublisherData powered by TypesetElsevier Inc.
ISSN0025-326X
Open AccessNo