Agartala, Jul 7: The Tripura State Pollution Control Board (TSPCB) today issued a public notification directing cellular firms and mobile phone companies to get prior permission from the board for setting up Base Tower Stations (BTS) in the state, besides noise testing report of generator.
TSPCB officials here said, ''There is no concrete report on the radio frequency impacts of BTS but it has been established that radio activity beyond tolerant limits have ill effects on living organisms, that is why it is necessary to identify the amount of radio activity before starting the BTS operation.'' The board also made it clear that no new BTS would be set up or installed for operation before getting the TSPCB's permission while the board had been trying to prepare a set of guidelines for radio frequency test in residential and commercial areas.
Recently, mobile phone towers in school and hospital premises had been banned in Delhi and it was made mandatory to take permission from Resident Welfare Associations (RWAs) before setting up base stations in residential areas, in efforts to limit the harmful effects of electromagnetic radiation exposure following the stringent provisions of the International Commission on Non-Ionising Radiation Protection (ICNIRP) came into force in May.
The TSPCB officials said the restriction was imposed considering the various impact reports of three lakh-odd towers across the country exposure to radiation much above the accepted ICNIRP limits of 450 microwatt/square cm.
The report also claimed that globally the prevalence of brain tumours increased by 30 per cent in regular mobile phone users.
Moreover, brain cancers were most likely to develop on the side of the head to which the person held his phone.
The highest increase in cancerous growth was in accoustic neuromas, which formed behind the ear and were usually curable.
Incidence of these types of growths is increasing in the UK and the risk increased with frequency and duration of exposure to mobile phone radiation, the report added.