Specific absorption rate
From open-encyclopedia.com - the free encyclopedia.
Specific absorption rate (SAR) is a measure of the rate at which radio frequency (RF) energy is absorbed by the body when using a cellular telephone. In the United States, the Federal Communications Commission (FCC) has adopted limits for safe exposure to RF enegry produced by mobile devices and requires that phones sold in the U.S. have a SAR level at or below 1.6 watts per kilogram (W/Kg).
Mobile devices transmit and receive non-ionizing electromagnetic radiation in the form of radio signals. The long-term effects of exposure to electromagnetic radiation remain unclear. While several studies have found a connection between cell phone use and cancer, some question the validity of these studies and other studies [1] have refuted this and similar claims. Additional studies are needed to develop a better understanding of how electromagnetic radiation affects the human body.
