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DNA & Genetic Damage

A genotoxic analysis of the hematopoietic system after mobile phone type radiation exposure in rats.

No Effects Found

Kumar G, McIntosh RL, Anderson V, McKenzie RJ, Wood AW. · 2015

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No significant changes were observed in the hematopoietic system of rats after exposure to 900/1800 MHz RF radiation at different SAR values.

Plain English Summary

Summary written for general audiences

The researchers extended a previous study by testing for effects at different SAR levels, both 900 and 1800 MHz, and both continuous wave and pulse modulated RF radiation. Excised long bones from rats were placed in medium and exposed to RF radiation in a transverse electromagnetic cell or a waveguide. Finite-difference time-domain numerical analyses were used to estimate the forward power needed to produce nominal SAR levels of 2/10 and 2.5/12.4 W/kg in the bone marrow. After exposure, lymphoblasts were extracted and assayed for proliferation rate and genotoxicity. No significant changes were observed in the hematopoietic system of rats after exposure to CW/PM wave 900 MHz/1800 MHz RF radiations at different SAR values.

Why This Matters

The study tested nominal SAR levels of 2/10 W/kg and 2.5/12.4 W/kg for both continuous wave and pulse modulated exposures at 900 and 1800 MHz. The data did not indicate any significant change in the endpoints for any combination of these exposure conditions.

Exposure Details

SAR
2 or 2.5 W/kg
Source/Device
900 MHz

Exposure Context

This study used 2 or 2.5 W/kg for SAR (device absorption):

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 2 or 2.5 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Extreme Concern range (Building Biology)This level is 1 times the FCC limit
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

In this paper we extend the scope of the previous study by testing for possible effects at: (i) different SAR levels; (ii) both 900 and 1800 MHz, and; (iii) both CW and pulse modulated (PM) RFR.

Excised long bones from rats were placed in medium and RFR exposed in (i) a Transverse Electromagnet...

Our data did not indicate any significant change in these end points for any combination of CW/PM ex...

No significant changes were observed in the hematopoietic system of rats after the exposure of CW/PM wave 900 MHz/1800 MHz RF radiations at different SAR values.

Cite This Study
Kumar G, McIntosh RL, Anderson V, McKenzie RJ, Wood AW. (2015). A genotoxic analysis of the hematopoietic system after mobile phone type radiation exposure in rats. Int J Radiat Biol. 91(8):664-672, 2015.
Show BibTeX
@article{g_2015_a_genotoxic_analysis_of_2914,
  author = {Kumar G and McIntosh RL and Anderson V and McKenzie RJ and Wood AW.},
  title = {A genotoxic analysis of the hematopoietic system after mobile phone type radiation exposure in rats.},
  year = {2015},
  doi = {10.3109/09553002.2015.1047988},
  url = {https://www.tandfonline.com/doi/full/10.3109/09553002.2015.1047988},
}
DOI: 10.3109/09553002.2015.1047988

Cited By (11 papers)

Quick Questions About This Study

The study investigated effects at different SAR levels, both 900 and 1800 MHz, and both continuous wave and pulse modulated RF radiation.
Excised long bones from rats were placed in medium and exposed to RF radiation in a transverse electromagnetic cell or a waveguide.
The study tested nominal SAR levels of 2/10 W/kg and 2.5/12.4 W/kg in the bone marrow.
No significant changes were observed in the hematopoietic system of rats after exposure to CW/PM wave 900 MHz/1800 MHz RF radiations at different SAR values.
After exposure, lymphoblasts were extracted and assayed for proliferation rate and genotoxicity.