Zhao Long-yu, Song Chun-xiao, Yu Duo, Liu Xiao-liang, Guo Jian-qiu, Wang Chuan, Ding Yuan-wei, Zhou Hong-xia, Ma Shu-mei, Liu Xiao-dong, Liu Xin
Department of Epidemiology and Health Statistics, School of Public Health, Jilin University, Changchun 130021, China.
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2012 Mar;30(3):194-5.
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.
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.
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).
Exposure to extremely low frequency electromagnetic radiation may have some effects on the cardiovascular system of workers.
观察工作场所极低频电磁场暴露水平，分析极低频电磁辐射对职业暴露人群心血管系统的影响。
用EFA - 300型频率电磁场强度测试仪检测两个工作场所（对照组和暴露组）的电磁场强度，用AWA5610D积分声级计检测噪声强度。收集188名对照组人员和642名职业暴露工人的健康体检指标信息。数据采用SPSS17.0统计软件进行分析。
暴露组的电场强度和磁场强度显著高于对照组（P < 0.05），但两个工作场所的噪声无显著差异（P > 0.05）。体检结果显示，暴露组的同型半胱氨酸、谷丙转氨酶、谷草转氨酶、γ-谷氨酰转肽酶、心电图异常率显著高于对照组（P < 0.05）。两组在性别、年龄、身高、体重方面无差异（P > 0.05）。
暴露于极低频电磁辐射可能对工人的心血管系统有一定影响。
