Exposure to 5G-NR electromagnetic fields affects larval development of Aedes aegypti mosquito

Plain English Summary

Summary written for general audiences

Researchers exposed Aedes aegypti mosquito larvae to 5G signals at 3.6 GHz for five days and observed developmental effects. At field strength of 46.2 V/m, larvae developed more slowly, particularly those with poor nutrition. At higher exposure (182.6 V/m), thermal heating altered both development timing and adult mosquito size.

Why This Matters

This study matters because it demonstrates measurable biological effects from 5G frequencies on developing organisms at real-world exposure levels. The 3.6 GHz frequency tested is exactly what many 5G networks use today. What's particularly revealing is that weakened larvae (those with poor nutrition) showed greater vulnerability to RF-EMF exposure. This mirrors what we see across biological research: organisms under stress are more susceptible to additional environmental stressors like electromagnetic fields. The absorbed power levels measured (1.2 to 18.7 microwatts) are within ranges that living organisms encounter near 5G infrastructure.

While mosquitoes may seem far removed from human health concerns, insects serve as crucial indicator species. They develop rapidly, making them ideal for observing effects across complete life cycles. The fact that non-thermal exposure levels (46.2 V/m) produced developmental delays challenges the industry narrative that only heating effects matter. This adds to growing evidence that current safety standards, based solely on preventing tissue heating, miss biologically significant effects occurring at lower exposure levels.

Exposure Information

Specific exposure levels were not quantified in this study.

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Cite This Study

De Borre E, De Massia C, Boone MN, Müller P, Thielens A (2025). Exposure to 5G-NR electromagnetic fields affects larval development of Aedes aegypti mosquito.

Show BibTeX

@article{de_borre_e_de_massia_c_boone_mn_mller_p_thielens_a_ce4740,
  author = {De Borre E and De Massia C and Boone MN and Müller P and Thielens A},
  title = {Exposure to 5G-NR electromagnetic fields affects larval development of Aedes aegypti mosquito},
  year = {2025},
  doi = {10.1038/s41598-025-32816-y},
  
}

DOI: 10.1038/s41598-025-32816-y

Quick Questions About This Study

Yes. This study found that mosquito larvae exposed to 5G signals at 3.6 GHz showed altered development patterns. At 46.2 V/m field strength, larvae developed more slowly, especially nutritionally stressed individuals. At higher exposure (182.6 V/m), both development timing and adult size changed due to dielectric heating effects.

Mosquito larvae absorbed between 1.2 and 18.7 microwatts of RF power during exposure. The lower power (1.2 microwatts at 46.2 V/m) slowed development without thermal heating. The higher power (18.7 microwatts at 182.6 V/m) produced both thermal effects and developmental changes in the insects.

Larvae on poor-quality diets showed greater developmental delays from RF-EMF exposure, demonstrating that stressed organisms are more vulnerable to electromagnetic fields. This pattern appears across biological research: when organisms face nutritional stress or other challenges, they're less resilient to additional environmental stressors like 5G radiation.

The mosquito larvae were exposed continuously for five days during a critical developmental period. This duration allowed researchers to observe effects across multiple larval stages and measure impacts on development timing and adult mosquito characteristics like body size at emergence.

Yes. At 46.2 V/m field strength (absorbing just 1.2 microwatts), larvae showed developmental delays without thermal heating occurring. This demonstrates biological effects below thermal thresholds, challenging safety standards based solely on preventing tissue heating rather than protecting against non-thermal biological impacts.