Measurements of radiofrequency fields in outdoor environments

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.’ 

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