Occupational exposure to electromagnetic fields of uninterruptible power supply industry workers

Abstract

High-voltage electricity lines are known to generate extremely low-frequency electromagnetic fields (ELF-EMFs). With the process of urbanization, increasing concerns has been focused on the potentially hazardous impacts of ELF-EMF on human health, and the conclusions are controversial. Little is known about the method of prevention against ELF-EMF induced healthy problems. A total of 186 male workers with occupational exposure to high-voltage electricity lines, and 154 male subjects with insignificant exposure as reference control were enrolled in this study. Resveratrol or placebo was given as dietary supplements (500 mg twice daily), and several inflammatory biomarkers and biomarkers of oxidative stress were assessed. Workers who had long-term exposure to high-voltage electricity lines exhibited elevated urinary levels of 8-hydroxy-2-deoxy-guanosine (8-OHdG) and F2-isoprostane, compared to the reference group. Lower plasma nuclear factor kappa B (NF-κB) and interleukin (IL)-6 were observed in exposed workers compared to the reference group. Resveratrol significantly reversed the adverse impacts of ELF-EMF. Stimulated cytokine production by resveratrol was found in exposed workers but not in the reference group. This study supported that occupational and long-term exposure to high-voltage electricity lines has an adverse effect on homeostasis of human body, and resveratrol supplement could be an effective protection strategy against the adverse effects induced by ELF-EMFs.

Avocado consumption during pregnancy is associated with child's lower food allergy risk in the prospective KuBiCo study

“…Portion size and frequency were used to compute an estimated daily intake for each listed item. Lastly, the 2018 National Food Composition (Fineli) database was utilized to determine average daily intakes of energy, food, and nutrients [13]. This is a modi ed version of the FFQ used in the Kuopio Breast Cancer Study; its validity and reliability have been detailed by Männistö et al [14].…”

Assessing the Health Risk Due to Exposure to Non-ionizing Radiation in the Form of Magnetic Field from Electrical Power Lines

“…Interest in the study of radiation that cannot knock off electrons from an atom (non-ionizing radiation), especially in the form of 50/60 Hz frequency electric and magnetic fields and its resulting adverse health effects on humans increased recently [1][2][3][4][5][6][7]. We are all exposed to electromagnetic fields (EMF) from electrical appliances [8,9], electric power transmission lines, distribution lines [7] and power substations [10].…”

Relationship between exposure to Extremely Low-Frequency (ELF) magnetic field and the level of some reproductive hormones among power plant workers

“…Increasing exposure of humans to electromagnetic fields (EMFs) caused by electrical products 1,2 and exposure to extremely low-frequency electromagnetic fields (ELFs) at all stages of production up to the consumption of electrical energy lead to adverse health effects. 3 The amount of exposure to electromagnetic fields depends on the location, size, and distance of the user from the source. 4 In a report, World Health Organization (WHO) announced that the exposure rate of most studied subjects to ELF magnetic field was less than 0.1 T and a small percentage was higher than 0.3 T. 5 In recent years, much attention has been given to the potential adverse effects of electromagnetic fields on the health of employees of high-voltage power distribution lines, electrical substations, and power plants.…”

“…Increasing exposure of humans to electromagnetic fields (EMFs) caused by electrical products 1,2 and exposure to extremely low‐frequency electromagnetic fields (ELFs) at all stages of production up to the consumption of electrical energy lead to adverse health effects 3 . The amount of exposure to electromagnetic fields depends on the location, size, and distance of the user from the source 4 .…”