The specific absorption rate (SAR) from mobile telephones at horizontal and vertical positions is investigated in human adult and child heads wearing metal-rim spectacles and having metallic implants. The SAR values calculated by Finite Difference Time Domain (FTDT) method are compared to the actual ANSI/IEEE standards and to the 900/1800/2100 MHz electromagnetic radiation limits according to EU standards. Our calculation shows a maximum of the cellular SAR in the child head, which in the case of metallic implant could be as much as 100% higher than in the adult head. The averaging on 1 and 10 g tissue-masses shows SAR generally under the limit of 519/1999/EC standards. However, in the case of 2100 MHz with vertical position of the phone for adults and of the 900 MHz for children with metallic implants the ANSI/IEEE limits are exceeded.

In recent years, research into biological and medical effects of non-ionizing radiation (NIR) has expanded greatly. NIR is electromagnetic radiation and field having frequencies from 0 Hz to 3-10 15 Hz. These fields are aífecting our every day life: they are emitted by power lines, transformers, service wires, and electrical panels as well as by home appliances (such as electric blankets, waterbeds, clocks, shavers, televisions, etc.). Electricity has been used, to great advantage, for 100 years without society being aware of any adverse health effect, other than thermal injury and electrocution. Last 50 years, there was an exponential growth of man-made electromagnetic (EM) fields. There is still no clear answer to the question: can exposure to electric and magnetic fields (called electrosmog) resulting from the production, distribution, and use of electricity promote cancer or initiate other health problems? There are guidelines all over the world to set limits to exposure to EM fields. But these limits leave the personal properties of electrosmog out of consideration. This paper describes the importance of a proper personal electrosmog measurement and dosimeter.