Abstract Background and Aims Today, human beings are exposed to the ELF magnetic field of electrical equipment and power lines, which can damage Leydig cells and alter the secretion of reproductive hormones. The purpose of this study was to investigate the relationship between exposure to ELF magnetic field and the level of some reproductive hormones in male power plant workers. Materials and Methods The present cross‐sectional study was carried out among all male employees of different units of the selected power plant around Tehran, Iran. All participants were asked to complete demographic data sheets and General Health questionnaire, on condition of consent and meeting the inclusion criteria. Time‐weighted average (TWA) exposure to magnetic field of 122 men was measured by IEEE Std C95.3.1 method using TES 1393 Gauss meter. Based on the exposure level, subjects were divided into three groups. Serum Levels of Free Testosterone, Luteinizing Hormone (LH), and Follicle stimulating hormone (FSH) in participants were determined. Data analysis was performed using ANOVA, Kruskal‐Wallis tests, and the relationships between variables were assessed by linear regression and correlation using SPSS v.25 software. Results There was no significant statistical correlation between the level of ELF exposure and serum levels of free testosterone, LH, and FSH, (r = 0.158). Serum levels of LH decreased significantly with age and duration of work experience (P < .05, r = −.25, P = .005, r = −.203, P = .025). Conclusion There was no relationship between exposure to magnetic field in power plants and reproductive hormone levels, although it is impossible to make definitive comments without using more accurate methods to estimate male fertility.

中文翻译：

---

电厂工人暴露于极低频（ELF）磁场与某些生殖激素水平之间的关系


摘要 背景和目的 如今，人类暴露在电气设备和电源线的极低频磁场中，这会损害间质细胞并改变生殖激素的分泌。本研究的目的是调查男性电厂工人暴露于极低频磁场与某些生殖激素水平之间的关系。材料和方法本横断面研究是在伊朗德黑兰周边选定发电厂不同单位的所有男性员工中进行的。所有参与者都被要求在同意并符合纳入标准的情况下完成人口统计数据表和一般健康调查问卷。使用 TES 1393 高斯计通过 IEEE Std C95.3.1 方法测量 122 名男性暴露于磁场的时间加权平均 (TWA)。根据暴露水平，受试者被分为三组。测定了参与者的游离睾酮、黄体生成素 (LH) 和卵泡刺激素 (FSH) 的血清水平。使用方差分析、Kruskal-Wallis 检验进行数据分析，并使用 SPSS v.25 软件通过线性回归和相关性评估变量之间的关系。结果 ELF暴露水平与血清​​游离睾酮、LH和FSH水平之间没有显着的统计学相关性（r = 0.158）。血清 LH 水平随着年龄和工作经验的持续时间显着下降（P < .05，r = -.25，P = .005，r = -.203，P = .025）。结论 发电厂磁场暴露与生殖激素水平之间没有关系，尽管如果不使用更准确的方法来估计男性生育力就不可能做出明确的评论。