*Analysis of Ground Water from Selected Sources in Jalingo Metropolis, Nigeria DOI: http://dx.doi.org/10.5772/intechopen.99082*


#### **Table 9.**

*Ions from water in Jalingo Metropolis during dry season.*

Fasakin and Fagbenro [23] in the analysis of the physicochemical parameters of coastal waters of Ondo State, Nigeria. All the nitrite values obtained in the study are lower than the WHO [27] recommended guideline value of 50 mg/l. This implies that the nitrite concentrations obtained in the study are only traces and might not cause any health risk to human life.

#### **3.14 Chloride(Cl- )**

The chloride levels recorded in this study range from 10 mg/l – 320 mg/L.The high values were recorded in three sites; TB3 (261 mg/l), MD3 (312 mg/l) and TB2 (320 mg/l). The values for all sample sites are higher than the range of 0.23 mg/L – 9.0 mg/L and mean concentration of 1.81 mg/L reported by Moses and Ishaku [21] in the evaluation of physicochemical properties of well water qualities in selected villages in Zing Local Government Area of Taraba State, Nigeria. This high values of


*Analysis of Ground Water from Selected Sources in Jalingo Metropolis, Nigeria DOI: http://dx.doi.org/10.5772/intechopen.99082*

**Table 10.**

*Variation in selected physicochemical parameters as influenced by water sources.*


#### **Table 11.**

*Variation in selected ions as influenced by water sources.*

chloride found in the study area which is more than the WHO permissible limit of 250 mg/l could be due to the high concentration of chloride in the rocks, soils and spraying of agro-chemicals like DDT and atrazine.

#### **3.15 Sulphate (SO4 2-)**

The sulphate (SO4) concentration of the samples collected from the sites in the study area range from 14 mg/l – 93 mg/l. The concentration is below the range of 3.10 mg/l to 66.10 mg/L reported by Moses and Ishaku [21] in the evaluation of physicochemical properties of well water qualities in selected villages in Zing Local Government Area of Taraba State, Nigeria. In contrast, the range found in the present study is higher the range of 13–63 mg/L reported by Popoola, Yusuf and Aderibigbe [24] in assessment of natural groundwater physico-chemical properties in major industrial and residential locations of Lagos metropolis. The permissible values by WHO and NSDWQ are 250 mg/L and 100 mg/L respectively. Therefore, the sulphate concentrations found in the water from the sampled sites are within the permissible limit of WHO standards for good quality water.
