- What are electromagnetic fields?
- Static and low-frequency fields
- What are static and low-frequency electric and magnetic fields?
- Direct and alternating voltage
- Effects of static and low-frequency fields
- Reports & Evaluations
- Radiation protection relating to the expansion of the national grid
- Basics transfer of electrical power
- High-frequency fields
- What are high-frequency fields?
- Applications high-frequency fields
- Radiation protection in mobile communication
- What is mobile communication?
- Reports and evaluations
- What is optical radiation?
- UV radiation
- What is UV radiation?
- Sun but safe!
- Effects of UV radiation
- Protection against UV radiation
- UV index
- Infrared radiation
- What is ionising radiation?
- Radioactivity in the environment
- Where does radioactivity occur in the environment?
- What is the level of natural radiation exposure in Germany?
- Air, soil and water
- Building materials
- Industrial residues (NORM)
- BfS laboratories
- Applications in medicine
- Radiation protection in medicine: international activities
- Applications in daily life and in technology
- Radioactive radiation sources in Germany
- Register high-level radioactive radiation sources
- Type approval procedure pursuant to RöV and StrlSchV
- Cabin luggage security checks
- Radioactive materials in watches
- Ionisation smoke detectors (ISM)
- What are the effects of radiation?
- Effects of selected radioactive materials
- Consequences of a radiation accident
- Cancer and leukaemia
- Genetic radiation effects
- Individual radiosensitivity
- Epidemiology of radiation-induced diseases
- Ionising radiation: positive effects?
- Risk estimation and assessment
- Radiation protection
- Basic informations
- Occupational radiation protection
- Nuclear accident management
- What is an emergency?
- What happens in an emergency?
- Federal and state tasks
- In the event of an emergency
- Measuring networks
- Exercises for emergency situations
- Defence against nuclear hazards
- Service offers
- Radon measurements
- Incorporation monitoring
- Biological dosimetry
- Online library
- About us
- Science and research
- Research concept
- Scientific collaborations
- EU research framework programme
- BfS research programme
- Third-party funded research
- Departmental research
- Selected research projects
- Selected research results
- Professional opinions
- Science Council
- Laws and regulations
- BfS Topics in the Bundestag
Promising Trend: rising number of low-radiation mobile phones on the market
BfS informs about most recent radiation values of current mobile phone models on the internet
Year of issue 2017
Shortly before the opening of the Internationale Funkausstellung (IFA) Berlin, the Bundesamt für Strahlenschutz (BfS, Federal Office for Radiation Protection) records a trend towards low-radiation mobile phones. This emerges from a current BfS review comprising additional 170 new models. The list is published on the internet.
"Mobile phones today have increasing technical capabilities, but they do at the same emit less radiation than earlier models. This is a promising trend indicating that technological progress, user friendliness and radiation protection are not in conflict," says BfS President Inge Paulini. She also points out that the rising number of possible applications could involve a more intense use of mobile phones and therefore recommends using mobile phones prudently on precautionary grounds.
The newest update of the list published on the BfS website involves almost 3,000 devices from more than 70 producers, also including tablets and older models that are no longer produced. The percentage of low-radiation mobile phones is 40 percent if the elder models are included and as much as 55 percent considering current models exclusively.
Overview of SAR-values of merchantable cell phones
Since 2002, BfS has conducted periodic surveys of the radiation values of the mobile phones available on the German market measured according to standardised procedures and has published the data on the internet. Therefore, every mobile phone user can retrieve the data of their current device and gather information on the radiation properties before selecting a new model. Mobile phones not exceeding a maximum SAR value of 0.6 Watts per kilogram when held next to the head are considered as low-radiation units.
SAR stands for "specific absorption rate" und is a measure of the radio-frequency energy absorbed by body tissue during the use of mobile phones. It is indicated in Watts per kilogram. In order to exclude health effects of radiofrequency fields, this value shall not exceed 2 Watts per kilogram. Common devices produce values clearly below this latter during a phone call. Devices not exceeding 0.6 Watts per kilogram during operation fulfil an important criterion for the "Blue Angel" eco label.
State of 2017.08.30