Type or paste a DOI name into the text box. Electrosmog, also known as electromagnetic smog or EM smog, is the term used to describe harmful electromagnetic fields and radiation that exist biologically closed electric circuits pdf our modern environments.
It covers a broad spectrum, from the visible spectrum, to radio waves, microwaves, infrared, ultra-violet light, Gamma rays and X-rays. Please see below Wikipedia’s definition of a photon. Photons A brief overview of the EM spectrum can be found at Wikipedia also. Within the body, currents induced by fields have the same range of effects as currents injected via electrodes, eg in an electric shock. These effects depend entirely on the size of the current.
Thus current densities of about 0. Low-frequency electric fields influence the human body just as they influence any other material made up of charged particles. When electric fields act on conductive materials, they influence the distribution of electric charges at their surface. They cause current to flow through the body to the ground. Low-frequency magnetic fields induce circulating currents within the human body. The strength of these currents depends on the intensity of the outside magnetic field.
If sufficiently large, these currents could cause stimulation of nerves and muscles or affect other biological processes. Fields up to 50 uT are used to alter the ionic balance across cells, to aid the generation of energy in the ATP cycle. All electric cabling will emit an electric field also. AC originated EM fields tend to be much more harmful than DC originated EM fields. Clearly strength is a significant factor. Computers come in many shapes and forms. Notebooks, netbooks or laptops come in a compact form, incorporate a TFT screen with the actual computer on the base.