Chromium Distribution and Spatial Variations in the Finer Sediment Grain Size Fraction and Unfractioned Surficial Sediments on Nyanza Gulf, of Lake Victoria (East Africa)
Table 1
Mean (±standard deviation) Cr concentration (µg/g dry weight) in surficial lake sediments in the gulf and main lake zones and at different site water depths (n: northern; s: southern part of the main lake).
Lake zones and sites
Zone I
Zone II
Zone III_s
Zone III_n
Unfractioned
42.49 (±23.67)
23.04 (±8.95)
26.20 (±7.67)
62.26 (±33.47)
30.45 ± 18.38 gulf zones (I + III)
44.23 ± 29.61 (main lake zones (IIIs + IIIn)
<63 µm fraction
22.1 (±6.15)
19.37 (±8.04)
15.06 (±3.34)
32.75 (±26.94)
20.46 ± 7.29 gulf zones (I + III)
23.91 ± 20.13 (main lake zones (IIIs + IIIn)
Number of sampled sites
8
12
4
4
Water depths at sampling sites (gulf and main lake zones)
