Radiovågor mobiltelefon
What is mobile phone radiation and how safe is it?
Australians love their smartphones: 88 per cent of us own at least one, and a whole generation has never known life without them.
But with pervasive smartphone use and associated radio waves they need to work, are there any health effects?
One of the first scientists to pose this question was Australian physiologist Ross Adey in the s.
While mobile phones were yet to gain the ubiquity they have today, Professor Adey was concerned by the frequencies emitted by household appliances and electric power lines.
In experiments conducted in the US, he found rabbit brain tissue was sensitive to very weak electromagnetic radiation.
Professor Adey was, unsurprisingly, a controversial figure until his death in , and few of his experiments have been replicated.
But in the decades since that initial research, loads of time and money have been spent looking into how electromagnetic radiation might affect our health, from sleep patterns to cancer.
Let's start with the basics.
What is electromagnetic radiation?
We are surrounded by all sorts of different types of electromagnetic radiation every day: your eyes pick up visible light
Sedan mobiltelefoni introducerades på talet har teknologin vidareutvecklats samt nya tillämpningar av trådlös kommunikation besitter tillkommit. för tillfället börjar man installera femte generationen trådlös kommunikation (5G). Den kommer delvis för att använda identisk frekvensområden vilket tidigare generationer, men även högre frekvenser. Ibland misstolkas ”högre frekvenser” som för att det betyder ”högre exponering”, men högre frekvens betyder att kommunikationen sker tillsammans med kortare våglängder.
Trådlös kommunikation sker med radiovågor som skapar elektromagnetiska fält. För för att med god marginal skydda mot hälsorisker finns vetenskapligt baserade referensvärden för dessa fält såsom inte bör överskridas. Dessa värden existerar preciserade till olika frekvenser, eftersom man har god kännedom ifall hur radiovågors energi tas upp inom kroppen nära olika frekvenser. Så länge exponeringsnivån ifrån 5G håller sig beneath referensvärdena existerar det många osannolikt för att radiovågor ifrån 5G leder till hälsoeffekter.
Elektromagnetiska fält ifrån mobiltelefoni existerar icke-joniserande, detta vill yttra för svaga för för att bryta kemiska bindningar samt till modell skada arvsmassan. Den sektion av energin som tas upp från kroppen omvandlas till värm
Wireless device radiation and health
Health Phenomenon
The antennas contained in mobile phones, including smartphones, emit radiofrequency (RF) radiation (non-ionizing "radio waves" such as microwaves); the parts of the head or body nearest to the antenna can absorb this energy and convert it to heat or to synchronised molecular vibrations (the term 'heat', properly applies only to disordered molecular motion). Since at least the s, scientists have researched whether the now-ubiquitous radiation associated with mobile phone antennas or cell phone towers is affecting human health.[1] Mobile phone networks use various bands of RF radiation, some of which overlap with the microwave range. Other digital wireless systems, such as data communication networks, produce similar radiation.
In response to public concern, the World Health Organization (WHO) established the International EMF (Electric and Magnetic Fields) Project in to assess the scientific evidence of possible health effects of EMF in the frequency range from 0 to GHz. They have stated that although extensive research has been conducted into possible health effects of exposure to many parts of the fr