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“Experimental study on water pollution tendencies around Lobuliet, Khor bou and Luri streams in Juba, South Sudan
oleh: John Leju Celestino Ladu, Xiwu Lu, Martin K. Loboka
Format: | Article |
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Diterbitkan: | International Society for Development and Sustainability (ISDS) 2012-09-01 |
Deskripsi
Urbanization and population demand for resources in Juba has led to pollution of aquatic ecosystems and deteriorated water quality. The streams water samples in Juba, central equatoria state, were collected in sterile 500ml plastic containers and instantaneously experimented. The pH, total solids, total dissolved solids, alkalinity and nitrate were used for evaluation. The results were then compared with standard permissible limits. The pH for Khor bou and Luri streams ranges from 6.1 to 6.7. Lobuliet stream showed abnormal pH value ranging from 9.7 to 9.9. Alkalinity ranges from 106.67 to 1060.33 mg/l. Total dissolved solids (TDS) ranges from 0.002mg/ml to 20.00mg/l. Statistical analysis using ANOVA indicated that TDS was insignificantly different (p>0.05) among the sites sampled. The nitrite level was low ranging from 0.04mg/l to 0.09mg/l. The cadmium and lead concentration ranges from 0.86mg/l to 1.92mg/l and 0.29mg/l to 0.95mg/l respectively. Analysis of variance showed the concentration of cadmium and lead were significantly different (P<0.05) among the sites sampled. Lobuliet stream had the highest concentration of heavy metals. The study concluded that pollution tendencies were attributed to the discharge of municipal and industrial effluent to the streams and if not properly tackled, may pose adverse impacts to the biogeochemical cycle.