2100 MHz mobile phone radiation damages DNA in onion roots

Abstract

Overview

The study investigated the effects of 2100 MHz radiofrequency radiations on onion root cells, focusing on cytotoxic and genotoxic impacts. Tests were conducted using fresh onion (Allium cepa L.) roots subjected to electromagnetic field radiations (EMF-r) for varying durations.

Findings

• Exposure durations tested were 1 hour and 4 hours.
• Parameters evaluated included mitotic index (MI), phase index, chromosomal aberrations, and DNA damage through the comet assay.
• Significant increase in mitotic index and aberration percentage was noted after 4 hours of exposure compared to control.
• DNA integrity was compromised as shown by decreased % head DNA and increased % tail DNA.
• The effects were benchmarked against methyl methanesulfonate (MMS; 90 μM), which acted as a positive control.

Conclusion

The observed cytotoxic and genotoxic effects were dependent on the exposure duration, with significant alterations detected mainly after 4 hours of exposure. Given the increasing concentration of man-made EMF sources, the potential genetic hazards from these exposures cannot be overlooked. The research underscores the urgent need for risk assessment and strategies to mitigate EMF pollution.