BERLIN - RADIATION from mobile phones has no short-term health impact on children and teenagers, a new German government study showed on Monday.

The study - which measured radiation levels in over 3,000 youngsters aged eight to 17 over a 24-hour period - showed there was no direct link between exposure to radiation and health complaints such as headaches and dizziness.

Nevertheless, radiation may still result in longer-term health risks for children as their nervous and immune systems are not fully developed, the Federal Office for Radiation Protection (BfS) said in a statement.

'We still do not know what long-term effects the electromagnetic fields from mobile phones have on children and youngsters,' a BfS spokesman said.

As a precautionary measure, the BfS urges caution in the use of wireless technology, especially for children.

Half of eight to 12-year-olds and 90 per cent of the teenagers said they owned a mobile phone. -- AFP