We measured the radiofrequency (RF) radiation at the Stockholm Central Station in Sweden in November 2015. The full study can be read here. The exposimeter EME Spy 200 was used and it covers 20 different RF bands from 88 to 5,850 MHz. In total 1,669 data points were recorded. The median value for total exposure was 921 µW/m2 (or 0.092 μW/cm2; 1 μW/m2=0.0001 μW/cm2) with some outliers over 95,544 µW/m2 (6 V/m, upper detection limit). The mean total RF radiation level varied between 2,817 to 4,891 µW/m2 for each walking round.
Hot spots were identified, for example close to a wall mounted base station yielding over 95,544 µW/m2 and thus exceeding the exposimeter’s detection limit, see Figure below. A man is standing with his smartphone just a couple of meters below a base station (see arrow). In that area maximum measured power density in the GSM +UMTS 900 downlink band from the base station was 95,544 µW/m2, which is the upper limit of measurement for EME Spy 200.
Almost all of the total measured levels were above the precautionary target level of 3 to 6 µW/m2 as proposed by the BioInitiative Working Group in 2012. That target level was one-tenth of the scientific benchmark providing a safety margin either for children, or chronic exposure conditions. Considering the rapid progress of this technology, including 5G that is to be launched in the near future, it is important to monitor current RF radiation exposure in the environment.
An interesting article can be found in the blog by Dariusz Leszczynski. It concerns a litigation in USA on brain tumours and mobile phones. In August 2014 Judge Weisberg ruled that a number of expert witnesses were permitted to present evidence in the next stage of the trial. The lawsuit is now in the ‘Discovery Phase’.
More can be found here:
Dariusz Leszczynski’s blog:
Reuters press release:
Both in Sweden and in many other countries wireless communication systems are increasingly installed in schools. They emit radiofrequency electromagnetic fields (RF-EMF) when used. RF-EMF is classified as ‘possible’ human carcinogen, Group B. There is an alternative to use wired internet connections instead. This is discussed in more detail in this article.
The former President of Microsoft Canada, Frank Clegg, warns that microwave radiation from wireless devices may have an impact on your health. The warning does not only relate to cancer but also to other health effects.
Read the interview here.
A novel mobile monitoring system was used to measure outdoor radiofrequency fields (RF) in Sweden recently published in Bioelectromagnetics. The system was car based and the frequency covered was 30 MHz to 3 GHz.
In total more than 70,000 measurements were made. According to Table 1 in the article the following results were obtained:
Rural area Urban Stockholm
Median (μW/m2) 16 270 2,600
Arithmetic mean (μW/m2) 230 1,500 6,700
Most of the radiation comes from base stations for mobile phones, 2G and 3G (UMTS). Unfortunately the range of measurements is not given. Especially high values are found in Stockholm. These results can be compared with the evaluation in BioInitiative Report 2012 especially regarding biological effects of RF-EMF:
‘A scientific benchmark of 0.003 uW/cm2 or three nanowatts per centimeter squared for ‘lowest observed effect level’ for RFR is based on mobile phone base station-level studies.’
When Ethan, aged 10, died of a brain tumour, his father, Damon Wyman, began to research the effects of RF/EMFs on children. This was published in a news release.
The school trustees at To Horo School, (Ethan’s school), decided to have the WiFi removed from the youngest children’s classrooms after actions by the parents and international scientific support on health risks from RF-EMF. The decision was taken by the Board of Turstees on 28th December, 2013. This decision was commented here: