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Int J Radiat Biol. 2015 May;91(5):420-5. doi: 10.3109/09553002.2015.1012304.

A cross-sectional study on oxidative stress in workers exposed to extremely low frequency electromagnetic fields.

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  • 1Electric Power Research Institute of Guangdong Power Grid Corporation , Guangzhou , China.

Abstract

PURPOSE:

To investigate whether extremely low frequency electromagnetic field (ELF-EMF) exposure could induce oxidative stress in workers performing tour-inspection near transformers and distribution power lines.

MATERIALS AND METHODS:

Occupational short-term 'spot' measurements were performed. In total, 310 inspection workers exposed to ELF-EMF were selected as the exposure group and 300 logistical staff as the control group. Plasma total antioxidant capacity (T-AOC) and glutathione peroxidase (GPx) activity were tested by the colorimetric method. Superoxide dismutase (SOD) activity was tested using the xanthine oxidase method. Plasma malondialdehyde (MDA) concentration was determined with a thiobarbituric acid assay. The micronucleus cell frequency (MCF) and Micronuclei frequency (MN) were also tested for genotoxic assessment.

RESULTS:

No significant changes of enzyme activities or MDA concentration were found. Neither the frequency of micronucleus lymphocytes nor micronuclei frequency changes were statistically significant.

CONCLUSION:

Continual ELF-EMF exposure might not induce oxidative stress in workers from a power supply bureau.

KEYWORDS:

ELF-EMF; genotoxicity; occupational exposure; oxidative stress

PMID:
25651040
DOI:
10.3109/09553002.2015.1012304
[PubMed - indexed for MEDLINE]
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