Radiation involving frequencies beyond ultraviolet is high energy ionizing radiation, e.g. x-rays, gamma rays. In large doses, this can damage the live tissue. Mobile towers transmit radio frequency radiation which is ultra-weak. Radiation is measured in terms of electron Volt ( eV ). X-rays have energy level of 100 eV to 1 lac eV. Ultraviolet has energy level of 100 eV or less. Visible light is 1 eV.

Radio frequency radiation from mobile towers is very small — one thousandth to one -millionth of an eV. As compared to X-rays or UV rays, and even visible light it is lacs of times weaker. It is not capable to alter either the matter or live tissue. It is, therefore, called non-ionizing radiation.

The average exposure level from towers is as low as 0.73 watt per square metre, far below the WHO-sponsored radiation norm. Mobile handsets are judged against the Specific Absorption Rate ( SAR ) limit, and good quality handsets operate far below the SAR limit.In fact, radio frequency fields emitted from mobile towers is more than a thousand times weaker than that of mobile phones.