Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
No effects of power line frequency extremely low frequency electromagnetic field exposure on selected neurobehavior tests of workers inspecting transformers and distribution line stations versus controls.
Li L, Xiong DF, Liu JW, Li ZX, Zeng GC, Li HL. · 2014
View Original AbstractWorkers exposed to 50 Hz ELF-EMF during power line inspections showed no significant neurobehavior test changes compared with controls.
Plain English Summary
Researchers evaluated 50 Hz ELF-EMF occupational exposure on neurobehavior tests of 310 inspection workers and 300 logistics staff. Neurobehavior tests included mental arithmetic, curve coincide, simple visual reaction time, visual retention, auditory digit span and pursuit aiming. No statistically significant changes in neurobehavior scores were found. Results across different age and seniority groups also showed no significant changes.
Why This Matters
Occupational short-term spot measurements were carried out. In 500 kV areas, electric field intensity at 71.98% of 590 measured spots were above 5 kV/m, the national occupational standard. In 220 kV areas, electric field intensity at 15.69% of 701 spots were above 5 kV/m. Magnetic field flux density at all measured spots was below 1,000 μT, the ICNIRP occupational standard.
Exposure Details
- Electric Field
- 5000 V/m
- Source/Device
- 50 Hz
Exposure Context
This study used 5000 V/m for electric fields:
- 16.7Kx above the Building Biology guideline of 0.3 V/m
Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.
Study Details
We aimed to evaluate the interference of 50 Hz extremely low frequency electromagnetic field (ELF-EMF) occupational exposure on the neurobehavior tests of workers performing tour-inspection close to transformers and distribution power lines.
Occupational short-term "spot" measurements were carried out. 310 inspection workers and 300 logisti...
The neurobehavior score changes showed no statistical significance. Results of neurobehavior tests a...
Show BibTeX
@article{l_2014_no_effects_of_power_2828,
author = {Li L and Xiong DF and Liu JW and Li ZX and Zeng GC and Li HL. },
title = {No effects of power line frequency extremely low frequency electromagnetic field exposure on selected neurobehavior tests of workers inspecting transformers and distribution line stations versus controls.},
year = {2014},
doi = {10.1007/s13246-013-0237-6.pdf},
url = {https://link.springer.com/content/pdf/10.1007/s13246-013-0237-6.pdf},
}