Introduction
Static / Low Frequency Fields
Grid expansion
High Frequency Fields
Mobile Telecommunication
FAQ on electromagnetic fields
More Information

Electromagnetic Fields

Usage of a Mobil PhoneElectromagnetic Fields

Through the use of certain technologies – e. g. power supply network and mobile communication – electric, magnetic and electromagnetic fields are generated in man´s environment. These fields can be described by their strength (amplitude), their oscillation (wave length) and number of oscillations (frequency). One differentiates high-frequency and low-frequency fields, they are part – as is optical radiation – of non-ionising radiation. In contrast to ionising radiation – e. g. X-rays – the energy of this radiation is not sufficient for charging atoms and molecules electrically – for ionising them. Nevertheless can this type of irradiation have impacts on health. Different concepts serve to protect against immediate hazards and as precaution.
 

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Specific Absorption Rates (SAR) for mobile phones
 
SAR-Werte-Tabelle During the use of mobile phones high frequency electromagnetic fields are absorbed in the head. The measured quantity is the absorbed energy per tissue mass, the so-called “Specific Absorption Rate” SAR (W/kg). The internationally accepted limit value of the SAR of 2 W/kg is based on known health effects. The SAR values of all devices on the market fall below the limit. Based on precautionary aspects, the German environmental label “Blauer Engel” recommends an SAR value for mobile phones of 0.6 W/kg or less. This market survey shows that 30% out of 814 mobile phones currently fulfil this criteria. more...


   
Die Rolle des BfS beim Stromnetzausbau

Die Energiewende hin zu einer Elektrizitätserzeugung aus erneuerbaren Quellen erfordert einen Um- und Ausbau der Stromnetze. Das Bundesamt für Strahlenschutz setzt sich im Interesse der betroffenen Bürgerinnen und Bürger dafür ein, dass dabei die Fragen des Strahlenschutzes angemessen und frühzeitig berücksichtigt werden. more...
 
What are Electromagnetic Fields?

In everyday life we are exposed to electromagnetic fields in various forms. Sources of electromagnetic fields are e.g. home appliances and electric installation, mobile communication, cordless phones, and baby monitors. Electromagnetic fields are part of the electromagnetic spectrum comprising the whole range from static electric and magnetic fields to ionising radiation. Electromagnetic fields belong to non-ionising radiation whose energy is not sufficient for ionising atoms and molecules and as a consequence for directly damaging genetic material. Nevertheless can this type of irradiation have biological effects. Different radiation protection concepts serve to protect against health impact. more...
 
Gleich- und Wechselspannung – Gleich- und Wechselstrom

Seit Werner von Siemens in der zweiten Hälfte des 19. Jahrhunderts das Prinzip des Elektrodynamos entwickelte, ist die Elektrizität in alle Lebensbereiche des Menschen vorgedrungen. Ob in der Industrie, im Verkehr, in Forschung und Medizin oder natürlich im Haushalt – überall finden wir heutzutage elektrisch betriebene Maschinen und Geräte. All diese Maschinen und Geräte sowie die dazugehörenden elektrischen Leitungen sind von elektrischen und magnetischen Feldern umgeben. Grundsätzlich wird zwischen Gleich- und Wechselspannung beziehungsweise zwischen Gleich- und Wechselstrom unterschieden. more...