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Potential health risks due to telecommunications radiofrequency radiation exposures in Lagos State Nigeria.

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Aweda MA, Ajekigbe AT, Ibitoye AZ, Evwhierhurhoma BO, Eletu OB. · 2009

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Many popular cell phone models emit radiation levels that exceed international safety guidelines, potentially putting millions of daily users at risk.

Plain English Summary

Summary written for general audiences

Researchers tested over 1,100 cell phones in Lagos, Nigeria to measure how much radiofrequency radiation they emit during use. They found that many popular phone models exceeded international safety guidelines, with some Samsung phones emitting nearly double the recommended limit. The study suggests that millions of users may face health risks from their daily phone use, particularly children and teenagers who are more vulnerable to radiation effects.

Why This Matters

This Nigerian study provides crucial real-world data about cell phone radiation exposures in a developing market where safety oversight may be less stringent. The finding that many handsets exceeded ICNIRP guidelines by significant margins is particularly concerning given that these same phone models are likely sold globally. What makes this research especially valuable is its large sample size of over 1,100 devices and its focus on actual consumer products rather than laboratory conditions. The researchers' specific recommendation to limit phone use to essential calls and supervise children's usage reflects the precautionary approach that the science increasingly supports. Put simply, when phones emit radiation levels approaching or exceeding safety limits, the cumulative exposure from daily use becomes a legitimate health concern that deserves attention from regulators and consumers alike.

Exposure Details

Power Density
0.0024 ± 0.0001, 0.0093 ± 0.0002, 0.1294 ± 0.0101, 0.9, 1.6813 ± 0.0094 µW/m²

Exposure Context

This study used 0.0024 ± 0.0001, 0.0093 ± 0.0002, 0.1294 ± 0.0101, 0.9, 1.6813 ± 0.0094 µW/m² for radio frequency:

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: 0.0024 ± 0.0001, 0.0093 ± 0.0002, 0.1294 ± 0.0101, 0.9, 1.6813 ± 0.0094 µW/m²Extreme Concern - 1,000 uW/m2FCC Limit - 10M uW/m2Effects observed in the No Concern rangeFCC limit is 100,000,000,000x higher than this level

Study Details

This study was conducted to measure the RFR output power densities (S) from the most commonly used GSM handsets used in Lagos State and compare with the limit recommended for safety assessment.

Over 1100 most commonly used handsets of different makes and models as well as wireless phones were ...

The range of the S-values obtained varied from a minimum of 1.294 ± 0.101 Wm-2 with Siemens model R2...

The results showed that the population in Lagos State may be at risk due to significant RFR exposures resulting principally from the use of GSM. Quite a number of handsets emit power above the ICNIRP recommended value. Measured RFR power close to Radio and Television masts and transmitters are within tolerable limits in most cases, only that the public should not reside or work close to RFR installations. Phone calls with GSM should be restricted to essential ones while youths and children that are more susceptible to RFR hazards should be supervised in their use of GSM. Wireless phones are quite safe.

Cite This Study
Aweda MA, Ajekigbe AT, Ibitoye AZ, Evwhierhurhoma BO, Eletu OB. (2009). Potential health risks due to telecommunications radiofrequency radiation exposures in Lagos State Nigeria. Nig Q J Hosp Med. 19(1):6-14, 2009.
Show BibTeX
@article{ma_2009_potential_health_risks_due_830,
  author = {Aweda MA and Ajekigbe AT and Ibitoye AZ and Evwhierhurhoma BO and Eletu OB.},
  title = {Potential health risks due to telecommunications radiofrequency radiation exposures in Lagos State Nigeria.},
  year = {2009},
  
  url = {https://www.ajol.info/index.php/nqjhm/article/view/50201},
}

Quick Questions About This Study

Research testing over 1,100 phones in Nigeria found some Samsung models emit nearly double the international safety limit for radiofrequency radiation. The Samsung C140 measured 16.8 watts per square meter, significantly exceeding recommended guidelines of 10 watts per square meter.
A 2009 study suggests millions of cell phone users may face health risks from daily use, particularly children and teenagers who are more vulnerable to radiation effects. Many popular phone models exceeded international safety guidelines during testing.
Yes, wireless landline phones emit significantly lower radiation than cell phones. Testing showed wireless phones produced only 0.024-0.093 watts per square meter compared to cell phones which ranged from 1.3-16.8 watts per square meter.
Children and teenagers are more susceptible to radiofrequency radiation hazards according to research findings. The study recommends supervising youth cell phone use and restricting calls to essential ones only, especially with phones exceeding safety limits.
Siemens phones showed the lowest radiation emissions in testing, with the R228 model measuring just 1.3 watts per square meter. This is well within international safety guidelines compared to some Samsung models that nearly doubled recommended limits.