Abstract：
:We present results of a preliminary geochemical assessment of Cd, Pb, V, As, Ni, Cu, Zn, Mg, Al, K, Ca, and Fe in marine sediments from the Eastern Equatorial Atlantic, off the Coast of Ghana. Samples were taken along 4 regions G1, G2, G3 and G4 at approximately 25m, 100m, and 250m, 500m and 1000m depths. Elemental compositions were assessed through the estimation of Al-normalized enrichment factors and geochemical accumulation indices, and the concentrations determined to produce any potential toxic effects to biota. Significant enrichment of the bottom sediments with Cd, Ni and As were observed at some locations with sediments showing signs of heavy pollution with As at region G4. Apart from Ni, V and As which were beyond threshold effects levels at most regions, all other metals were below probable effect levels. Both natural and anthropogenic processes controlled trace metal accumulation and distribution in the Ghanaian coastal environment.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Mahu E,Nyarko E,Hulme S,Coale KHdoi
10.1016/j.marpolbul.2015.06.044subject
Has Abstractpub_date
2015-09-15 00:00:00pages
301-7issue
1-2eissn
0025-326Xissn
1879-3363pii
S0025-326X(15)00411-7journal_volume
98pub_type
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