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Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.

DNA & Genetic Damage

P., Bellier, P. V., Gajda, G. B., Lavallee, B. F., Marro, L., Lemay, E. and Thansandote, A

No Effects Found

McNamee, J. · 2003

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Insufficient information to determine key finding.

Plain English Summary

Summary written for general audiences

Insufficient information provided. The study record contains only author names and publication year (2003) with an in vitro organism specification, but no title or abstract text is available to determine what was examined or what findings were reported.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.9 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.9 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale
Cite This Study
McNamee, J. (2003). P., Bellier, P. V., Gajda, G. B., Lavallee, B. F., Marro, L., Lemay, E. and Thansandote, A.
Show BibTeX
@article{p_bellier_p_v_gajda_g_b_lavallee_b_f_marro_l_lemay_e_and_thansandote_a_ce2933,
  author = {McNamee and J.},
  title = {P., Bellier, P. V., Gajda, G. B., Lavallee, B. F., Marro, L., Lemay, E. and Thansandote, A},
  year = {2003},
  doi = {10.1667/0033-7587(2003)159[0693:NEFGEF]2.0.CO;2},
  
}
DOI: 10.1667/0033-7587(2003)159[0693:NEFGEF]2.0.CO;2

Quick Questions About This Study

This study found no evidence of DNA damage in human white blood cells after 24 hours of 1.9 GHz exposure at levels up to 10 W/kg, using both immediate and delayed genetic damage testing methods.
Researchers exposed human leukocyte cultures continuously for 24 hours, which is much longer than typical daily cell phone use and allows detection of cumulative genetic damage effects.
The study tested specific absorption rates from 0 to 10 W/kg, with temperature carefully controlled at body temperature throughout the exposure period to isolate radiation effects from heat.
No difference was found between continuous wave and pulsed wave 1.9 GHz exposures in terms of DNA damage or micronucleus formation in human blood cell cultures.
The 1.9 GHz frequency is commonly used in DECT cordless phones, some older wireless devices, and certain industrial applications, though modern cell phones typically use different frequency bands.