Experimental Study of Relationship between Biological Hazards of Low-Dose Radiofrequency Exposure and Energy Flow Density in Spirostomum Ambiguum Infusoria Exposed at a Mobile Connection Frequency (1 GHz)

• Published in: Bulletin of experimental biology and medicine 2011-08, Vol.151 (4), p.477-480
• Main Authors: Sarapultseva, E. I., Igolkina, J. V.
• Format: Article
• Language: English
• Subjects: Biomedical and Life Sciences; Biomedicine; Cell Biology; Ciliophora - metabolism; Ciliophora - radiation effects; Data processing; Dose-Response Relationship, Radiation; Energy flow; Experimental Biology; Internal Medicine; Laboratory Medicine; Motor activity; Pathology; Radio Waves; Spirostomum ambiguum
• ISSN: 0007-4888; 1573-8221
• DOI: 10.1007/s10517-011-1361-5

Radiofrequency exposure at the mobile connection frequency (1 GHz) at different energy flow densities, 5 μW/cm 2 (2-fold below the maximum permissible level) and 50 μW/cm 2 (5-fold surpassing this level), caused a reduction of motor activity in unicellular hydrobionts Spirostomum ambiguum Ehrbg infusoria. In all cases, the effect was similar by the intensity and developed in a jump-wise manner after exposure of a certain duration, after which did not increase with prolongation of the exposure. The duration of radiofrequency exposure safe for the object varied signifi cantly: 8–9 h and 10 min at 5 and 50 μW, respectively. These innovation data on harmful biological effects of very low radiofrequency exposure (5 μW/cm 2 ), the threshold form of biological reaction, presence of “safe” periods of exposure, and the data demonstrating a clear-cut relationship between these periods and energy flow density are interesting from theoretical viewpoint and in connection with the problem of evaluating permissible levels of radiofrequency exposure of biological objects.