Abstract

Overview

This review investigates the connections between childhood leukemia and exposure to extremely low frequency magnetic fields (ELF-MF) from power lines and electric appliances. Despite extensive studies over the past 40 years, definitive conclusions remain elusive.

Findings

• A global meta-analysis reveals an association between ELF-MF and increased risk of leukemia in children, particularly in studies conducted before 2000.
• The threshold for concern is identified at ELF-MF levels higher than 0.4 µT, based on diverse measurement approaches including magnetic flux density and proximity to power lines.
• Specific appliances like electric blankets and electric clocks show a higher risk association, emphasizing the importance of magnetic field intensity and prolonged exposure.

Conclusion

The systematic review strongly suggests a link between higher ELF-MF exposure and the risk of childhood leukemia, validating concerns over environmental ELF-MF standards and urging continued investigation in variable geographical contexts.