Abstract
As the world is being industrialized and technological revolution continues, there has been an unprecedented increase in the number and diversity of electromagnetic sources. While all these devices have made our lives richer, comfortable and easier, they have been accompanied by concerned possible health risks due to their electromagnetic field (EMF) emission. Electro-Magnetic Fields commonly known as Non Ionizing Radiation is emitted from high power transmission lines, computer monitor/video display unit, radio waves of different frequencies (extremely low frequency to microwaves), telecommunication, satellite, radar etc. which causes health hazards to living system and environment. CRT monitors are still being used in various computer composing shops, photocopy machine shops. Their EMF health effects have not been studied in Bangladesh. The data were collected from various places in Dhaka, Bangladesh: Banani Super Market, Mohakhali, Farmgate Green Road, Nilkhet and Uttara. Both Electric and Magnetic fields were measured for CRT monitors. These results showed that in many cases the magnetic field radiated from the different sources are greater than the threshold limit.
Highlights
It is obvious that electricity is the main tool for the advancement of modern civilization
We are informed about the adverse effects of varying degrees of Electro-Magnetic Fields (EMF) commonly known as non-ionizing radiation (NIR) which do not ionize the media like that of ionizing radiation (i.e. α, β and γ, etc.) It is reported that high power transmission lines [1] [2], computer monitor/video display unit, radio waves of different frequencies in telecommunication, satellite, radar etc. cause harm to living systems [3] [4], especially in human beings for example
Even there are evidences that the cause of clinical depression and commitment of suicide are related with the emission from the power lines [5] [6]
Summary
It is obvious that electricity is the main tool for the advancement of modern civilization. We are informed about the adverse effects of varying degrees of Electro-Magnetic Fields (EMF) commonly known as non-ionizing radiation (NIR) which do not ionize the media like that of ionizing radiation (i.e. α, β and γ, etc.) It is reported that high power transmission lines [1] [2], computer monitor/video display unit, radio waves of different frequencies in (extremely low frequency to microwaves) telecommunication, satellite, radar etc. The total number of Mobile Phone subscriptions has reached 121.860 million at the end of January 2015 [9] Considering these facts, it can be assumed that we are always exposed to non-ionizing radiation in our daily life mainly from artificial sources like radar, satellite, telecommunication, radio and television transmissions, microwave communications, high voltage power lines etc. Scientists and engineers from all over the world are very much concerned about it and trying their best to overcome or at least to minimize the problem
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