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Comparison of bioactivity between GSM 900 MHz and DCS 1800 MHz mobile telephony radiation.

Department of Cell Biology and Biophysics, University of Athens. Athens. Greece.
Electromagnetic Biology and Medicine (Impact Factor: 0.77). 02/2007; 26(1):33-44. DOI: 10.1080/15368370701205644
Source: PubMed

ABSTRACT An increasing number of studies find that pulsed Radio Frequency (RF), electromagnetic radiation of both systems of digital mobile telephony, established and commonly used in Europe during the last years, GSM 900 MHz (Global System for Mobile telecommunications) and DCS 1800 MHz (Digital Cellular System), exert intense biological action on different organisms and cells (Hardell et al., 2006; Hyland, 2000; Kundi, 2004; Panagopoulos et al., 2004, 2007). The two types of cellular telephony radiation use different carrier frequencies and give different frequency spectra, but they usually also differ in intensity, as GSM 900 MHz antennas operate at about double the power output than the corresponding DCS 1800 MHz ones. In our present experiments, we used a model biological system, the reproductive capacity of Drosophila melanogaster, to compare the biological activity between the two systems of cellular mobile telephony radiation. Both types of radiation were found to decrease significantly and non thermally the insect's reproductive capacity, but GSM 900 MHz seems to be even more bioactive than DCS 1800 MHz. The difference seems to be dependent mostly on field intensity and less on carrier frequency.

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    • "The daily " exposures " of the SE groups were continuous during 6 min, since preliminary experiments had already shown that there is no statistically important difference in reproductive capacity between SE groups of different shamexposure patterns (data not shown). Each group consisted of nine male and nine female newly eclosed insects, as described before [9] [32] [33]. The mean power density measured for the 6-min speaking emission with the mobile phone antenna being in contact with the glass wall was 0.35 ± 0.07 mW/cm 2 . "
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