Heavy Metal Contamination of Sediments from an Exoreic African Great Lakes’ Shores (Port Bell, Lake Victoria), Uganda
نویسندگان
چکیده
Lake Victoria (L. Victoria) is the largest African tropical and freshwater lake, with one of highest pollution levels, globally. It shared among Uganda, Kenya Tanzania, but it drained only by river Nile, longest in Africa. Though environmental studies have been conducted investigations heavy metals (HMs) contamination sediments from fish landing sites ports on Ugandan portion L. are limited. In this study, an urban, industrial site (Port Bell) Victoria, Uganda was investigated to establish its HMs levels potential health risks humans ecosystems. Sediment samples were collected triplicate (n = 9) three different points Port Bell, digested analyzed using atomic absorption spectrometry for presence these HMs: copper (Cu), lead (Pb), cadmium (Cd) chromium (Cr). The average daily dose through dermal contact hazard quotient (HQ) calculated assess risk that associated dredging works (lake sand mining). Four geochemical enrichment indices: factor (CF), geo-accumulation index (Igeo), load (PLI) ecological (PERI) used quantify sediments. results showed mean HM content ranged from: 6.111 ± 0.01 7.111 0.002 mg/kg Cu; 40.222 0.003 44.212 Pb; 0.352 0.007 0.522 0.010 Cr; 3.002 3.453 Cd. Health assessments indicated there no discernible non-carcinogenic could arise study area as indices all below one. factors obtained suggest Cd has reached a state severe (CF > 6). An assessment Igeo established not contaminated regards Cu Cr, they exhibited low-to-median median respect Pb Cd, respectively. show raise serious concerns, considerable Bell sediments, particularly regard Upon examination multivariate statistical analyses, Cr strong correlation which alluded their introduction anthropogenic sources. Based sedimentary concentrations employed recommended spatial variations water, biota should be monitored.
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ژورنال
عنوان ژورنال: Pollutants
سال: 2022
ISSN: ['2673-4672']
DOI: https://doi.org/10.3390/pollutants2040027