Study Links ELF Magnetic Fields to Elevated CNS Tumor Risk in Children

A study published in Environmental Research reports an association between residential exposure to extremely low frequency magnetic fields (ELF-MF) in Mexico City and increased risk of central nervous system (CNS) tumors in children. Bedroom measurements above 0.4 μT were significantly linked to higher tumor risk. Researchers also observed greater risk among children aged 6–10 who used digital tablets for extended periods, regardless of internet connectivity.

More than 5% of children in Mexico City were exposed to ELF-MF levels exceeding 0.3 μT, above the global average. ELF magnetic fields are generated by power lines, household wiring and electrical devices, particularly while charging.

In 2001, the International Agency for Research on Cancer classified ELF magnetic fields as a possible human carcinogen, citing links to childhood leukemia. The authors note growing evidence of potential health risks and encourage precautionary measures and stronger policy oversight to limit long-term exposure.

15-02-2026