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Lack of adverse effects of whole-body exposure to a mobile telecommunication electromagnetic field on the rat fetus.

No Effects Found

Takahashi S, Imai N, Nabae K, Wake K, Kawai H, Wang J, Watanabe S, Kawabe M, Fujiwara O, Ogawa K, Tamano S, Shirai T · 2010

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This study found no developmental harm from cell tower-level EMF exposure in rats, but more research is needed for definitive safety conclusions.

Plain English Summary

Summary written for general audiences

Researchers exposed pregnant rats to 2.14 GHz radiofrequency radiation (similar to cell tower signals) for 20 hours daily throughout pregnancy and nursing. They found no harmful effects on the mothers, their offspring, or the next generation, examining everything from growth and development to memory and reproductive function. This suggests that exposure levels similar to those from cell towers may not cause developmental problems in mammals.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.14 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.14 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 2.14 GHz Duration: 20 hr/day

Study Details

The recent steep increase in the number of users of cellular phones is resulting in marked increase of exposure of humans to radiofrequency electromagnetic fields (EMFs). Children are of particular concern. Our goal was to evaluate potential adverse effects of long-term whole-body exposure to EMFs simulating those from base stations for cellular phone communication.

Pregnant rats were given low, high or no exposure. At the high level, the average specific absorptio...

No abnormal findings were observed in either the dams or the F(1) generation exposed to the EMF or i...

Thus, under our experimental conditions, whole-body exposure to 2.14GHz for 20h per day during gestation and lactation did not cause any adverse effects on pregnancy or the development of rats.

Cite This Study
Takahashi S, Imai N, Nabae K, Wake K, Kawai H, Wang J, Watanabe S, Kawabe M, Fujiwara O, Ogawa K, Tamano S, Shirai T (2010). Lack of adverse effects of whole-body exposure to a mobile telecommunication electromagnetic field on the rat fetus. Radiat Res. 173(3):362-372, 2010.
Show BibTeX
@article{s_2010_lack_of_adverse_effects_3436,
  author = {Takahashi S and Imai N and Nabae K and Wake K and Kawai H and Wang J and Watanabe S and Kawabe M and Fujiwara O and Ogawa K and Tamano S and Shirai T},
  title = {Lack of adverse effects of whole-body exposure to a mobile telecommunication electromagnetic field on the rat fetus.},
  year = {2010},
  
  url = {https://hero.epa.gov/hero/index.cfm/reference/details/reference_id/2770626},
}

Quick Questions About This Study

A 2010 study found no harmful effects when pregnant rats were exposed to 2.14 GHz radiation for 20 hours daily throughout pregnancy and nursing. Researchers examined mothers, offspring, and the next generation, finding no problems with growth, development, memory, or reproductive function.
Research using 2.14 GHz radiation (similar to cell tower signals) found no adverse effects on fetal development in rats. The study exposed pregnant animals for 20 hours daily and examined multiple generations, showing no impact on survival, growth, or organ development.
A study exposing pregnant rats to 2.14 GHz EMF for 20 hours per day found no pregnancy complications or developmental problems. Researchers evaluated gestational conditions, organ weights, and offspring health across two generations with no abnormal findings observed.
Researchers found no memory impairment in rat offspring exposed to 2.14 GHz radiation during pregnancy and nursing. The study tested memory function at 10 weeks of age and found no differences between exposed and unexposed animals across multiple cognitive measures.
A 2010 study found no harmful effects from whole-body 2.14 GHz EMF exposure during lactation. Pregnant rats exposed for 20 hours daily during pregnancy and nursing showed normal reproductive ability, hormonal status, and physical development in their offspring.