Since mobile phones have existed, there have also been warnings about the radiation emitted by these devices. What is the damage? do cell phones emit radiation even when not in use? how can we protect ourselves?
It’s on the bedside table, in your trouser pocket and sometimes even hangs from your ear. If you have a smart phone, you usually carry it with you at all times. Many people forget: the mobile phone is radiating. Anyone who makes a lot of phone calls with their mobile phone can be exposed to a lot of electromagnetic radiation, so-called electrosmog.
Mobile phones use high-frequency electromagnetic fields to transmit voice or data. “When you make a call with your mobile phone, some of the energy from these fields is absorbed in your head,” explains the Federal Office of Radiation Protection on its website.
“The radiation is mainly generated during the transmission of signals between the device and the mobile phone base station,” explains Winopal. The value of the Specific Absorption Rate (SAR) here gives an indication of how much of this electromagnetic radiation is emitted by a mobile phone. The energy absorption is measured in watts per kilogram (W/kg).
The radiation emitted by a mobile phone: Like a microwave
“SAR ultimately indicates how strong the heating is that occurs when radiation is absorbed by tissue,” says Winopal. Microwave ovens, for example, also work this way. “The only difference is that here the food is specifically bombarded with much more concentrated radiation, resulting in much greater heating.
Whether radiation has a negative effect on health has not been clearly demonstrated, the expert says. It is suspected to be carcinogenic or to cause infertility. “There are regular studies that want to prove the dangers of radiation or its safety,” Winopal says.
Within limits, however, radiation is considered harmless. The SAR value of a mobile phone should not exceed 2 W/kg. This maximum value has been recommended by the International Commission for Non-Ionizing Radiation Protection since 1998; the German Commission for Radiation Protection and the EU Commission endorsed it in 1998 and 1999 respectively. According to; all mobile phones on the market fall below the maximum value.
Have you ever felt your fingers or your ears warm due to long term cell phone use? That sensation caused by the heat of the device and the movement is occasionally a flood of radiation.
What they say about radiation from our cell phones: A half-truth?
“Values below 0.8 W/kg are generally considered good, and the Environmental Label Jury even only awards its Blue Angel to devices whose SAR value is below 0.6 W/kg,” says Winopal. Today’s smartphones generally fall well below the limit values. “For example, the Samsung Galaxy S8 was tested with an SAR value of 0.38 W/kg, the Huawei P10 comes with 0.96 W/kg and Apple’s iPhone 7 with 1.38 W/kg,” the expert explains. Network operators usually provide corresponding lists of SAR values, although they are usually somewhat hidden.
For the specialist magazine “connect”, the SAR value is only half the truth: “Also important is the effective transmission power available for communication, which is neither absorbed by the head nor lost by a poorly designed mobile phone,” says one test. “If the mobile phone has poor transmission characteristics, the mobile phone network tells it to go to a higher power level and radiate more power”. For this reason, the magazine has developed its own radiation factor for a more realistic evaluation, which is calculated from the SAR value and the transmission power.
Tips for reducing radiation
However, users can reduce their load themselves. “If you make a lot of calls, you should use a hands-free kit so you don’t have to hold the phone to your head,” says Winopal. “In addition to wired headsets, you can also use Bluetooth products, which emit less radiation than a mobile phone. The values here are often only between 0.003 and 0.03 W/kg.
However, a smart phone that is ready to receive radiation also emits radiation when you are not in the phone. It is best not to carry the smartphone on your body, but in a bag or backpack. If you use it as an alarm clock, it should not be placed on the bedside table next to your head as it has been proven that cell phones emit radiation even when not in use and some when they are turned off. Surprised?
The experts also gives tips for low-radiation use: “Use your landline phone if you have a choice between a landline and a mobile phone. Calls with the mobile phone should be short and avoided completely in the event of poor reception – then the mobile phone needs more power. Developing children are more sensitive to radiation.”
BfS therefore recommends limiting mobile phone calls with children as much as possible. Deactivation of mobile data connections can also be useful here. “This way your child can be reached by phone and can play offline while on the move,” says the BfS.
Well, there you have it, friends. Even though we can no longer detach ourselves from our mobile devices, we must try to do so from time to time. We don’t know if the radiation affects us as such, but it’s better to prevent it. I hope you will take this advice to heart, for you and your children. A hug.
Cell Phones Radiation FAQS
How much radiation do cell phones emit?
The brand of phones they tested that emit the most radiation can put out 1.68 watts per kilogram, as was the case with the 5T from Chinese manufacturer OnePlus. The Federal Communications Commission (FCC) in the United States sets the standard for phones at 1.6 W/kg
Can cell phones give you cancer?
Cell phones emit radiofrequency energy, which is a form of non-ionizing radiation, according to the National Cancer Institute. … That’s why there have been so many studies about whether cell phones increase someone’s risk for malignant (cancerous) or benign brain tumors.
How does radiation from cell phones affect you?
Mobile phones emit radiofrequency energy, a form of non-ionizing electromagnetic radiation, which can be absorbed by tissues close to the phone. … Scientists have reported adverse health effects of using mobile phones including changes in brain activity, reaction times, and sleep patterns.