Impact of Electromagnetic Field from Cell Phones on Selected Soil Microorganisms, Enzymes and Physico-Chemical Parameters
Iheme, C. I.
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The impact of electromagnetic fields (EMF) from cell phones on selected soil microorganisms, enzymes and physico-chemical parameters was studied. EMF-unexposed soil from the homogenized sampled soil served as the control. At the periods of 0, 30, 60, and 90 days, the total colony counts (CFU/g) and viability ratios of Bacillus, Micrococcus, Staphylococcus, Enterococcus, Corynebacterium, Saccharomyces, Penicillium, and Geotrichum were determined. Also determined at the exposure periods were the activities of acid phosphatase, dehydrogenase, alkaline phosphatase, catalase and alkaline protease as well as pH, moisture content, organic matter and phosphate contents. At the exposure periods of 30, 60, and 90 days, the mean values from the test samples for all the enzymes, microorganisms (except Enterococcus species), physico-chemicals (except pH and phosphate) were significantly (p<0.05) different from the control samples. At the exposure periods of 30, 60, and 90 days, the mean values 5.034±0.055 IU/L, 3.052±0.059 IU/L and 1.069±0.143IU/L of dehydrogenase from the test samples were significantly (p<0.05) lower than the mean values 8.068±0.043 IU/L, 7.195±0.022 IU/L and 5.894±0.085 IU/L from the control samples respectively. At the exposure period of 90 days, the meandsx value 0.001±0.048 CFU/g of Enterococcus species from the test sample was insignificant (p>0.05) from the mean value 0.300±0.076CFU/g from the control. It is only at the exposure period of day 30 that the mean value 6.993±0.065 of pH from the test sample showed significant (p<0.05) decrease from the mean value 7.353±0.049 from the control. Meanwhile, the results of all the enzyme activities, the total colony count and the physico-chemical parameters from the test samples at day 0 were insignificant (p>0.05) from the controls respectively. The results showed that EMF fields from cell phones have impact on some biotic and some abiotic components of soils