Research Article
Determination of Total Chromium and Chromium Species in Kombolcha Tannery Wastewater, Surrounding Soil, and Lettuce Plant Samples, South Wollo, Ethiopia
Figure 4
Comparison of the concentration of Cr(VI) and Cr(III) in the wastewaters ((a) = average concentration of all wastewater samples; (b) = average concentration from junction to downstream wastewater samples).
(a) |
(b) |