This work presents a detailed study of the underground transmission cables at 231 locations within Riyadh in order to detect and identify the source of the magnetic field in very low frequencies ELF that might be present. The magnetic field was measured parallel to the path of the cable once and orthogonal with them. The aim is to explain how it affects to the nearby houses. The magnetic field is measured in the summer and spring season. Handheld triaxial EMF magnetic field metre (TM-192, Tenmars Electronics) has been used for magnetic field measurement. The measurement of magnetic field has been carried out at a distance of one metre above the ground. It was found that the magnetic field fall within a range of 1.3-197 mG with an overall mean value of 54.7±42.2 mG. The results show that the mean values of the magnetic field in this study was far below the allowable limit set by international agencies. The results of this study have concluded without doubt that the underground transmission 18 M.A. AL-Rajhi cables constitute a source of exposure to the magnetic field, which means that the presence of net current caused the pollution. Therefore, the study recommends the importance of issuing a legislation to make the magnetic field around the underground transmission cables non-existent.
The purpose of this work is to measure the magnetic field emitted from underground transmission lines and camper with international limit. The measurements of magnetic field were performed with the aid of TRIAXIAL ELF Magnetic Field Meter. The level of magnetic field were found in the range 1 to 197 with mean value of 51.6 ± 44.2 mG.The survey of magnetic field measurements revealed that the level of radiation dose found to be far below than the international standard dose limit for the public exposure set by the International Commission on Non-Ionizing Radiation Protection ICNIRP 830 mG.
Potato chips are considered as one of the most popular and preferable children's foods in Saudi Arabia. The aim of this study was to examine the concentration of 12 chemical elements (i.e. Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Zn, As, Se and Al) in different types of potato chips. Samples were analyzed using an Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES). The average concentrations of analyzed elements in all potato chips were examined and compared with the recommendations of international organizations concerned with food safety. From the human health point of view, this investigation showed that there was no possible health risk to consumers due to the intake of potato chips.
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