Asian Journal of Research and Reviews in Physics, 2019
In this study, an investigation of radiofrequency power density distribution around GSM mast in K... more In this study, an investigation of radiofrequency power density distribution around GSM mast in Keffi town, Nigeria was determined. Radiofrequency meter (Electrosmog ED- 155A) was used to measure the EM radiation at 50, 70, 90,110, 130, 150, 170, and 190 m away from mobile base stations. A total of fifteen mobile base stations were randomly selected in Keffi town covering about four network providers (MTN, Globacom, Etisalat, and Airtel), according to their proximity to buildings, number of antennas mounted on their masts, how close they are to other base stations and the population density around them.The result reveal that MBS5 was found to have the highest value of average power density compared to that of the remainder, with a contribution of about 16% (2908.38 µW/m2). The least contribution was recorded in MBS3 with only about 1% (173.71 μW/m2). The other MBS with significant contribution are MBS6 (15%), MBS11 (15%), MBS10 (13%), MBS8 (13%) and MBS13 (11%) with average power de...
Asian Journal of Advanced Research and Reports, 2019
Background: Tobacco smoking is one source of heavy metals exposure in the general population. Tob... more Background: Tobacco smoking is one source of heavy metals exposure in the general population. Tobacco smoke has toxic, genotoxic, and carcinogenic properties and has been linked to fatal pregnancy outcomes. Aim: This research was carried out to investigate the concentration of Copper (Cu), lead (Pb) and Zinc (Zn) in different cigarette brands sold in Keffi main market of Nasarawa state and compare with recommended standard. Study Design: To determine the presence of heavy metals in different brands of cigarette sold in Keffi main Market, Nasarawa State, Nigeria and compare them with relevant authorities’ standard. Place and Duration: The study was carried out in the department of physics, Nasarawa State University, Keffi, Nasarawa State, Nigeria between March 2018 and November, 2018. Materials and Methods: Ten brands of cigarette were purchased from Keffi main central market using random sampling. The cigarettes were expose to sun light for 3 hours until they became dry. The filters...
In this study, an investigation of radiofrequency power density distribution around GSM mast in K... more In this study, an investigation of radiofrequency power density distribution around GSM mast in Keffi town, Nigeria was determined. Radiofrequency meter (Electrosmog ED-155A) was used to measure the EM radiation at 50, 70, 90,110, 130, 150, 170, and 190 m away from mobile base stations. A total of fifteen mobile base stations were randomly selected in Keffi town covering about four network providers (MTN, Globacom, Etisalat, and Airtel), according to their proximity to buildings, number of antennas mounted on their masts, how close they are to other base stations and the population density around them.The result reveal that MBS5 was found to have the highest value of average power density compared to that of the remainder, with a contribution of about 16% (2908.38 µW/m 2). The least contribution was recorded in MBS3 with only about 1% (173.71 μW/m 2). The other MBS with significant contribution are MBS6 (15%), MBS11 (15%), MBS10 (13%), MBS8 (13%) and MBS13 (11%) with average power densities of 2878.72μW/m 2 , 2767.28μW/m 2 , 2385.43 μW/m 2 , 2382.70 μW/m 2 , and 1996.36 μW/m 2 respectively. The findings reveal that the measured values of power densities across all the sites are well below the RF radiation exposure safety limit set by International Commission on Non-ionizing Radiation Original Research Article
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