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International Journal of Analytical Chemistry
Volume 2016, Article ID 7214932, 7 pages
http://dx.doi.org/10.1155/2016/7214932
Research Article

Determination of Spatial Chromium Contamination of the Environment around Industrial Zones

Department of Chemistry, Hawassa University, 05, Hawassa, Ethiopia

Received 4 August 2016; Accepted 13 November 2016

Academic Editor: Frantisek Foret

Copyright © 2016 Dereje Homa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study was conducted to determine the spatial levels of chromium contamination of water, agricultural soil, and vegetables in the leather tanning industrial areas using spectrophotometric methods. The results showed elevated accumulation of total Cr ranging from  mg/L to  mg/L,  mg/Kg to  mg/Kg, and  mg/Kg to  mg/Kg in water, agricultural soil, and vegetable samples, respectively. The highest levels of chromium (VI) found from the speciation study were  mg/Kg and  mg/L in soil and water samples, respectively, which decreased with distance from the tannery. Among the vegetables, the highest load of Cr(VI) was detected in onion root ( mg/Kg) and the lowest ( mg/Kg) in fruit of green pepper. The detected levels of Cr in all of the suggested samples were above the WHO permissible limits. The variations of the levels Cr(III) and Cr(VI) contamination of the environment with distance from the tannery were statistically significant (). Similarly, significant difference in the levels of Cr among the tested vegetables was recorded. The levels increased with decreasing distance from the effluent channel.