ABSTRACT

The effects of physico-chemical and biological parameters of Aham River, located in Umuoke, in Umuoke autonomous community, Obowo LGA of Imo State was studied. The study was carried out with water sample collection in two season (dry and wet season) into 3 stations the car wash, cloth wash and general stations. The results obtained indicate significant differences (P<0.05) in water quality parameters between the dry and wet season temperature was significantly (P>0.05) higher in dry season (27.5-31.5) than in wet season (27.90-27.95). Colour has a mean range which was significantly low (P<0.05) during the dry season (0.01-0.02) than in wet season (0.11-0.15). The pH was significantly higher (P>0.05) in dry season (6.30-8.50) than wet season (6.50-7.17) magnesium had a mean range significantly higher (P>0.05) in day season (12.16-19.60) than wet season (4.88-7.89), where as calcium had mean range significantly lower (P<0.05) in wet season (16.03-19.04) than dry season (32. 10-68.40). The potassium was significantly higher (P>0.05) in dry season (2.20-3.80) than wet season (1.90-4.40). Nitrate had a significant higher (P>0.05) mean range in wet season (23.20-91.00) than dry season (7.80- 22.40). Sodium was significantly higher (P>0.05) in dry season (8.60-22.20) than wet season (0.11-0.15) while chlorine was significantly higher (P>0.05) during dry season (25.20-35.20) than wet season (12.41-21.27), the IDS and TSS were significantly higher (P>0.05) in dry season (1.14-9.68) and (4.76-28.50) respectively than in wet season (1.74-3.86) and (13.74-6.74) respectively. The BOD and DO were significantly higher (P>0.05) dry season (6.85-12.20) and (2.28-6.85) respectively than in wet season (9.22-46.00) than in dry season (4.64-19.20) whole sulphates followed same trend by being significantly higher (P>0.05) in wet season (1.45 -s3.37) than dry season (1.45-2.82). microbial count was present in dry and we season. In dry we have microbial count of 3.8 x 10° of car wash and isolates organism present in Eschoricia coli and Websiella spp, in general we have microbial count of 4.4 x 106 and isolated organism present is E. coli, Samonilla shigella, and Kle bsilla spp and cloth wash with microbial count 8.3 x 107 E.coli, Silmonella streptoecci and Webseilla spp, while in wet season we have microbial count 5.10 x 106 Shigella present in car wash, in cloth wash we have microbial count 8.6 x 10 7 and isolated organism, E. coli, Klessiella spp, Streptocci, and Salmonella of general microbial count 3.5 x 10° and isolated organism Shigella and Klebseilla.