Biological Hazards of Electromagnetic Field Generated by Electric High Voltage Towers at Khartoum State - Sudan

Abstract

There is an increase in high-voltage towers numbers and reinforcement stations in Sudan and the world at large. For the purpose of protection; numbers of high-voltage towers in Khartoum were surveyed on the basis of the global protection standards. The measurements were made for 10 towers and near fan keys. The measurements were taken at different distances from the selected towers and fan. The study concluded that no biological hazard exists around all tested towers. This is since the magnetic flux density values are beyond the permissible level. The magnetic field strength generated by these towers decreases with distance in accordance with the theoretical relation of the same. The effect of static magnetic field on blood lymphocyte cells transformation was studied in this work. Blood samples from 3 healthy people were collected, the blood samples are 90. Some of them are considered as control. The rest were exposed to magnet field of different values 0.1, 0.2, 0.3 0.4 and 0.5 teals for different exposure times which are 30, 60, 90, 120, 180 and 180 minutes, respectively. The blood cells were stimulated with photo heamgg luteinizes. Then they inoculated for 72 hours. The magnetic field increases lymphatic transformation percentage to about double value compared to control samples. The exposure time increase, increases lymphatic transformation percentage also compared to control samples.