Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Assessment of genetic damage in peripheral blood of human volunteers exposed (whole-body) to a 200 muT, 60 Hz magnetic field
Authors not listed · 2009
Four-hour exposure to 200 microTesla power line magnetic fields caused no detectable DNA damage in human blood cells.
Plain English Summary
Canadian researchers exposed 20 healthy volunteers to whole-body 60 Hz magnetic fields at 200 microTesla for 4 hours, then tested their blood for DNA damage using two different laboratory methods. The study found no evidence that this exposure level caused genetic damage to blood cells, even though positive control tests confirmed their methods could detect DNA damage.
Why This Matters
This study provides reassuring evidence about acute exposure to power line frequency magnetic fields at levels you might encounter near high-voltage transmission lines or industrial equipment. The 200 microTesla exposure level is roughly 1,000 times stronger than typical household magnetic field exposures (which range from 0.1 to 1 microTesla), making this a meaningful safety assessment. The researchers used gold-standard DNA damage tests and included proper controls, lending credibility to their negative findings.
What this means for you: while this study examined only short-term exposure and cannot address long-term health effects, it suggests that brief encounters with elevated power line magnetic fields are unlikely to cause immediate genetic damage. The reality is that most people's daily EMF exposure occurs at much lower levels than tested here, from sources like household wiring and appliances.
Exposure Information
Specific exposure levels were not quantified in this study.
Show BibTeX
@article{assessment_of_genetic_damage_in_peripheral_blood_of_human_volunteers_exposed_whole_body_to_a_200_mut_60_hz_magnetic_field_ce3951,
author = {Unknown},
title = {Assessment of genetic damage in peripheral blood of human volunteers exposed (whole-body) to a 200 muT, 60 Hz magnetic field},
year = {2009},
doi = {10.1080/09553000802641169},
}