Are there radiation emission limits for mobile phones under the EMR Human Exposure Standard?
Rather than emission limits, the EMR Human Exposure Standard specifies exposure limits to radiofrequency EMR that regulate the rate the mobile phone user absorbs energy from the handset. This is known as the specific absorption rate (SAR)—the rate radiofrequency energy is absorbed by a specified mass of biological tissue—and is expressed in watts per kilogram (W/kg). SAR values are averaged over any six-minute period during a 24-hour day. The exposure limits vary depending on whether the device is an aware user device or not. An aware user device is a hand-held or body-worn transmitter intended for use as: • a land mobile system station • an ambulatory station • a citizen band radio station • an amateur station or • a maritime ship station. For non-aware user devices, the exposure limits are: • for uniform exposure—0.08 W/kg whole body average SAR or • for non-uniform exposure—up to 0.08 W/kg whole body average SAR, but with a spatial peak SAR not exceeding 2 W/kg as averaged over any