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OBJECTIVE: To observe the exposure levels of extremely low frequency electromagnetic fields in workplaces and to analyze the effects of extremely low frequency electromagnetic radiation on cardiovascular system of occupationally exposed people. METHOD: Intensity of electromagnetic fields in two workplaces (control and exposure groups) was detected with EFA-300 frequency electromagnetic field strength tester, and intensity of the noise was detected with AWA5610D integral sound level. The information of health physical indicators of 188 controls and 642 occupationally exposed workers was collected. Data were analyzed by SPSS17.0 statistic software. RESULTS: The intensity of electric fields and the magnetic fields in exposure groups was significantly higher than that in control group (P < 0.05), but there was no significant difference of noise between two workplaces (P > 0.05). The results of physical examination showed that the abnormal rates of HCY, ALT, AST, GGT, ECG in the exposure group were significantly higher than those in control group (P < 0.05). There were no differences of sex, age, height, weight between two groups (P > 0.05). CONCLUSION: Exposure to extremely low frequency electromagnetic radiation may have some effects on the cardiovascular system of workers.

Type

Journal article

Journal

Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi

Publication Date

03/2012

Volume

30

Pages

194 - 195

Keywords

Adult, Cardiovascular System, Case-Control Studies, Electromagnetic Fields, Electromagnetic Radiation, Humans, Male, Occupational Exposure, Young Adult