The impact of radiofrequency exposure on Aedes aegypti (Diptera: Culicidae) development

Abstract

Introduction

Wireless communication connects billions of people worldwide, relying on radiofrequency electromagnetic fields (RF-EMF). Generally, fifth-generation (5G) networks shift RF carriers to higher frequencies. Although radio, cell phones, and television have benefited humans for decades, higher carrier frequencies can present potential health risks. Insects closely associated with humans (such as mosquitoes) can undergo increased RF absorption and dielectric heating. This process inadvertently impacts the insects' behaviour, morphology, and physiology, which can influence their spread.

Therefore, this study examined the impact of RF exposure on Ae. aegypti mosquitoes, which are prevalent in indoor environments with higher RF exposure risk. The morphologies of Ae. aegypti eggs and their development into adult mosquitoes were investigated.

Methods

• A total of 30 eggs were exposed to RF radiation at three frequencies: baseline, 900 MHz, and 18 GHz.
• Each frequency was tested in triplicate.
• Parameters assessed included hatching responses, development times, larval numbers, and pupation periods through daily observations in an insectarium.

Results

• The hatching rate for the 900 MHz group was the highest (79 ± 10.54%) compared to other exposures (p = 0.87).
• The adult emergence rate for the 900 MHz group was also the lowest at 33 ± 2.77%.
• Statistical analysis showed a significant difference between groups (p = 0.03).

Conclusion

This work highlighted the morphology sensitivity of Ae. aegypti eggs and their development in the aquatic phase to RF radiation, potentially altering their life cycle.

The 900 MHz RF exposure accelerated the hatching process and increased the percentage of adult emergence. These findings represent an important initial step in understanding the impact of RF radiation on Aedes mosquito populations, which has implications for population dynamics and dengue vector control.

Studies are actively investigating the influence of RF exposure on insects (particularly mosquitoes) due to data suggesting that it can impact hatching and developmental processes. Further studies are essential to fully comprehend these effects and clarify their practical relevance in preventing dengue spread. These ongoing investigations are crucial for assessing RF safety and its potential impacts on both insect and human health due to EMF exposure. The connection between EMF exposure and biological effects is significant and warrants further investigation.