Influence of Temperature and Humidity on the Physiological Indices of Stress in the Obudu Mountain

Influence of Temperature and Humidity on the Physiological Indices of Stress in the Obudu Mountain Landscape Environment, Nigeria: Global Perspectives Removal rate of Total Petroleum Hydrocarbon Content (TPHC) of a crude oil polluted land was investigated with field experimental data generated from the Research Farm soil at the Federal University of Technology Owerri, Imo State, Nigeria. The artificially polluted soil using crude oil - bonny light - with specific gravity of 0.8323 was analyzed. The petroleum contaminant present in the laboratory soil was 230 mg per kilogram of soil. The other treatment variables used include: Inorganic fertilizer -FZ (NPK 20:10:10), poultry manure -MP, cow dung -CD and a mixture of the three (ie FZ, PM & CD) in equal proportion. In addition, natural treatment was allowed to occur as the control experiment. However, fungi as well as bacteria played an important role in the degradation of petroleum hydrocarbon. The identified crude oil degrading Fungi are Penicillium notatum, Mucor spp, Rhizopus stolonifer and Penicillum caseicolum with P. notatum and P. caseicolum (penicillum spp) as the strongest fungi degraders. On the other hand, the identified degrading Bacteria are Pseudomonas putida and Bacillus subtilis. These can therefore be isolated and cultured and then employed on remediation sites either as indigenous or foreign degrading microbes in the engineering of bioremediation of crude oil polluted soil using the best engineering techniques. The treatment with mixture of treatment variables proved to be a better option from the results obtained with 82.38 mg/kg after 9 weeks of remediation followed by fertilizer, 83.13 mg/kg and 86.75 mg/kg for poultry manure. Cow dung had 105.5 mg/kg and the control had least with 204.50 mg/kg. #Temperature #humidity #physiological #indices #stress #mountain #landscape #Obudu

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