• Adeleke, A. E.
• Onifade, A.P.
• Adegbite, A.A.
• Isola, O.E.
• Anifowose, A.J., Sangoremi, A.A.

This research work investigated the impact of seasonal variation on the physiochemical properties of selected ponds in Ede Metropolis for raining and dry season. The pH values for Ede South raining(ESR) and dry season(ESD) and Ede North raining (ENR) and dry season(END) were; 6.87, 7.60, 7.26 and 7.57 respectively. The conductivity values were; 51.80, 52.23, 51.40 and 52.70 µs/cm for the two seasons respectively. Temperature: 27.02, 27.03, 27.05 and 27.070C respectively. Total hardness values were: 248.3, 125, 275 and 225 mg/L respectively. The values for calcium hardness were: 150, 151.67, 175 and 173.3 mg/L respectively. Magnesium hardness values were: 98.3, 26.67, 100 and 51.7mg/L respectively. The values for dissolved oxygen were: 5.07, 2.18, 6.05 and 2.56 mg/L respectively. The Chemical Oxygen Demand were: 56.67, 43.33, 83.33 and 43.3 mg/L respectively. The values for turbidity were: 41.03, 18.98, 43.07 and 20.1 NTU respectively. The values for total solid were: 0.034, 0.020, 0.042 and 0.019 g respectively. The Total suspended solid were: 0.021, 0.012, 0.032 and 0.014 g respectively. Total dissolved solid values were: 0.01, 0.009, 0.01 and 0.005 g respectively. The values for total acidity were: 60.0, 30.0, 49.2 and 46.4 g/L respectively. Total alkalinity values were: 90, 70.5, 75 and 60.2 mg/L respectively. The Heavy metal analysis on Cr, Pb, Ni, Co and Cd for ESR were; 0.399, 0.041, 0.042, 0 .192 and 0.018 mg/L respectively. The results for ESD were; 0.401, 0.053, 0.047, 0.0 209 and 0.020 mg/L respectively. The results for ENR were: 0.441, 0.054, 0.042, 0.204 and 0.019 mg/L respectively. Also, the results for END were; 0.485, 0.057, 0.050, 0.200 and 0.047mg/L respectively. The present study established that the two seasons fall within the WHO standards for the physicochemical parameters. It also revealed that the amount of heavy metals in dry season was higher than the raining season. However, the concentrations of heavy metals for both seasons were a bit higher than the WHO standard which implies that the fish in ponds may not be suitable for human consumption as it poses health risk.

Seasonal variation, Physicochemical, Parameters, Heavy metals, Conductivity.

"ASSESSMENT OF SEASONAL VARIATION ON THE PHYSICOCHEMICAL PROPERTIES OF SELECTED FISH PONDS IN EDE METROPOLIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 12, page no.b235-b252, December-2021, Available :http://www.jetir.org/papers/JETIR2112133.pdf

"ASSESSMENT OF SEASONAL VARIATION ON THE PHYSICOCHEMICAL PROPERTIES OF SELECTED FISH PONDS IN EDE METROPOLIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 12, page no. ppb235-b252, December-2021, Available at : http://www.jetir.org/papers/JETIR2112133.pdf