Magnetic susceptibility and Morphological measurements were carried out on surface soil samples in order to find possible relationship and to obtain environmental implications. The samples were taken along the two parcels road of Maidahini (A-B) and Bunza (C-D) on a square grid of (400 x 400 m) near the agricultural irrigation farmland soil close to the main city of Bunza area in Gwandu formation northwestern Nigeria. Magnetic susceptibility distribution values found to range between 5.756 x 10-6 SI to 4.0 x 10-6 SI and 2.65 x 10-6 SI to 1.2 x 10-6 SI, from both the two-parcel road. Morphological analysis by means of atomic absorption spectrometry shows that the concentration of various toxic elements was higher than the mean background values for world soils. However, in view of the high values, especially that apparent mineralization was observed on each sample, the results were therefore is due for the proper calibration of the equivalent used of the analysis soil samples. Spatial histogram distribution of magnetic susceptibility shows the variation of high and low susceptibility concentration and relate to toxic content were reported near the rivers. Urban pollution and road traffic emission seem to be the main influence for these values. The results showed that magnetic measurements are sensitive, fast, inexpensive and robust which can be advantageously applied for studying soils affected by urban and road pollution. Thus, the study has shown that the mean spatial distribution concentration of (Fe, Mn, Cu, Ni, and Cr) content was 2378.9, 107.3, 72.8, 53.6 and 6.5, is very higher in top soil samples across the two-parcel road of the then Maidahini (A-B) and Bunza (C-D).
Key words: Agricultural Soils; Magnetic Susceptibility distribution; Morphological Measurements; Bunza-Maidahini and Kebbi Metropolis.
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