Characteristics Levels of Manganese (Mn) in the Soil Profiles of Automobile Mechanic workshops In Ado Ekiti Land, Ekiti State
- February 2, 2021
- Posted by: RSIS Team
- Categories: Agriculture, IJRSI
International Journal of Research and Scientific Innovation (IJRSI) | Volume VIII, Issue I, January 2021 | ISSN 2321–2705
Adekunle Adetukasi1*, Matthew Olufemi Orire2, Alaba Christopher Falade3, Catherine Feyisayo Ajayi4
1,2,3,4 Ekiti State College of Health Sciences and Technology, Ijero Ekiti
Corresponding Author*
ABSTRACT
Heavy metals such as manganese (Mn) in soils are of great environmental concern. Volumes of literature have been reported in damaging effects of excessive Mn in soils. Automobile mechanic activities remain one of the major indirect sources of manganese into the environment through indiscriminate dumping of wastes. In order to determine Mn content in the soil from the vicinity of automobile mechanic workshop and evaluate the contamination levels, the concentrations and distribution of Mn must be established for different physical and chemical phases of the soil. Different soil layers (0-15cm, 15-30cm and 30-4cm depth) were collected and analyzed for Mn contents using atomic absorption spectrophotometer (AAS). Soil texture, conductivity pH, total organic content and cation exchange capacity were also measured. Sequential extraction was also carried out to determine the geochemical phase of Mn. In the investigated soils, the range total of Mn concentration across the various sampling sites were 41.5- 50-1 mg/kg (0-15cm) 34.6 -37.3 mg/kg (15-30cm)and 21.2-27.8mg/kg (30-45cm), this revealed higher concentration of Mn in topsoil samples(0-15cm) than subsoil samples(15-30cm)(30-4cm). The results showed that enrichment factors (E.F.) of Mn were 0.21, 0.20 and 0.31 respectively while the geo accumulation index (Igeo) values of the metals in the soil under study indicate that they are uncontaminated with Mn. The mechanic wastes represent a potential source of heavy metal pollution to the environment. Although, the present level of Mn contamination of the soil does not call for alarm. Therefore, necessary steps should be taken to minimize the accumulation of metal. It is now recommended that a separate portion of land be set for automobile workshops called the mechanic village.
