Abstract:
:This study reports the mass fractions of Al, Cr, Mn, Fe, Co, Zn, As, Ni, Cu, Cd, Hg, and Pb in water and sediments of the Halda river, Bangladesh, and studies the distribution, contamination, and potential ecological risks of the metals and metalloid. The average mass fractions of As, Cd, and Pb are relatively higher in sediments compared to those in background values, whereas Al, Fe, Mn, and Pb concentration fractions in water are higher than the international guideline values. The results of the different contamination indices indicate that Halda river sediments are minorly contaminated by As and Pb and moderately to considerably contaminated by Cd. The ecological risk assessments indicate considerable to high ecological risk due to Cd. Multivariate statistical analysis reveals the origin of the contaminants in the river, and indicate that Cr, Zn, Pb, and Cd are from anthropogenic activities while the other metals originate from natural lithogenic actions.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Islam MA,Das B,Quraishi SB,Khan R,Naher K,Hossain SM,Karmaker S,Latif SA,Hossen MBdoi
10.1016/j.marpolbul.2020.111649subject
Has Abstractpub_date
2020-11-01 00:00:00pages
111649eissn
0025-326Xissn
1879-3363pii
S0025-326X(20)30767-0journal_volume
160pub_type
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