electromagnetic field

电磁场
  • 文章类型: Journal Article
    我们审查了几个系统评价中的第一个发表的一个,这是世卫组织新倡议的一部分,旨在评估人造射频电磁辐射(RF-EMF)与人类不良健康影响之间的关联。审查的审查涉及非人类哺乳动物的怀孕和出生结果的实验研究。该评论声称,分析的数据没有提供足够的结论来为监管层面的决策提供信息。我们的目的是评估此系统评价的质量,并评估其结论与孕妇及其后代的相关性。质量和相关性在审查本身的前提下进行了检查:例如,我们没有质疑论文的选择,也不是选择的统计方法。虽然世卫组织的系统审查表明自己是彻底的,科学,与人类健康相关,我们发现了许多问题,这些问题使得世卫组织的审查无关紧要且存在严重缺陷.发现的所有缺陷都扭曲了结果,以支持审查的结论,即没有确凿的非热效应证据。我们证明了底层数据,当相关研究被正确引用时,支持相反的结论:有明显的迹象表明RF-EMF暴露会产生有害的非热效应。许多已发现的缺陷揭示了系统偏斜的模式,旨在隐藏在复杂的科学严谨性背后的不确定性。这篇综述的方法偏差和质量低下令人高度关注,因为它有可能破坏世卫组织在人为RF-EMF危害人类健康方面的可信度和专业性。
    We examined one of the first published of the several systematic reviews being part of WHO\'s renewed initiative to assess the evidence of associations between man-made radiofrequency electromagnetic radiation (RF-EMF) and adverse health effects in humans. The examined review addresses experimental studies of pregnancy and birth outcomes in non-human mammals. The review claims that the analyzed data did not provide conclusions certain enough to inform decisions at a regulatory level. Our objective was to assess the quality of this systematic review and evaluate the relevance of its conclusions to pregnant women and their offspring. The quality and relevance were checked on the review\'s own premises: e.g., we did not question the selection of papers, nor the chosen statistical methods. While the WHO systematic review presents itself as thorough, scientific, and relevant to human health, we identified numerous issues rendering the WHO review irrelevant and severely flawed. All flaws found skew the results in support of the review\'s conclusion that there is no conclusive evidence for nonthermal effects. We show that the underlying data, when relevant studies are cited correctly, support the opposite conclusion: There are clear indications of detrimental nonthermal effects from RF-EMF exposure. The many identified flaws uncover a pattern of systematic skewedness aiming for uncertainty hidden behind complex scientific rigor. The skewed methodology and low quality of this review is highly concerning, as it threatens to undermine the trustworthiness and professionalism of the WHO in the area of human health hazards from man-made RF-EMF.
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  • 文章类型: Journal Article
    电磁场(EMF)暴露水平的逐渐增加对人类健康和电子系统的正常运行构成了潜在威胁。为了了解环境EMF条件,在北京市区约400公里的道路上进行了测量,中国。测量结果表明,89%左右的采样点的电场强度在3V/m以内,其他采样点的电场强度相对较高。结合进一步的频谱分析,发现一条路段的电场强度超过了国家标准的限值。此外,为了帮助快速识别环境EMF的一般状况,本文提出了一套挖掘电场强度与人口密度和建筑物密度之间关联规则的方法。最终的关联规则表明,在人口密度中等或较低的地区和建筑物密度较低的地区,电场强度通常低于1.5V/m;在人口密度极高的地区和建筑物密度较高的地区,电场强度通常为1.5-4V/m;而电场强度高于4V/m主要发生在人口密度极高的地区。建议在人口密度极高的地区,重点加强对EMF的监测,同时不断关注城市EMF水平的趋势,从而实现对相关风险的预警和处理。
    The gradual increase in electromagnetic field (EMF) exposure levels poses a potential threat to human health and the normal operation of electronic systems. In order to know the environmental EMF conditions, measurements were carried out on roads of about 400 km in the urban area of Beijing, China. The measurement results show that the electric field strength of about 89% of the sampling points is within 3 V/m, and the electric field strength of other sampling points is relatively high. Combined with further spectrum analysis, it was found that the electric field strength of one road section exceeded the national standard limits. In addition, to help quickly identify the general condition of the environmental EMF, a set of procedures for mining the association rules between the electric field strength and population density and building density is proposed in this paper. The final association rules show that the electric field strength is usually lower than 1.5 V/m in areas with medium or lower population density and areas with low building density; the electric field strength in areas with extremely high population density and areas with high building density is usually 1.5-4 V/m; while the electric field strength higher than 4 V/m mainly occurs in areas with extremely high population density. It is recommended to focus on strengthening the monitoring of EMF in areas with extremely high population density, and at the same time continuously pay attention to the trend of the urban EMF levels, so as to achieve early warning and treatment of relevant risks.
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  • 文章类型: Journal Article
    使用心脏有源可植入医疗设备(AIMD)的工人,如起搏器(PM)或植入式除颤器(ICD),被职业健康与安全法规框架视为特别敏感的风险群体,必须受到保护,免受电磁场(EMF)干扰造成的危险。在本文中,我们首先描述了对暴露于EMF的心脏AIMD员工进行风险评估的一般方法,根据欧盟的规定,特别是EN50527-2-1:2016和50527-2-2:2018标准。然后,介绍了与特定EMF来源相关的三个案例研究,为了更好地描述如何在实践中进行风险评估的初始分析,并了解是否需要进一步的特定风险评估分析。
    Workers with cardiac active implantable medical devices (AIMD), such as a pacemaker (PM) or an implantable defibrillator (ICD), are considered by the occupational health and safety regulation framework as a particularly sensitive risk group that must be protected against the dangers caused by the interference of electromagnetic field (EMF). In this paper, we first describe the general methodology that shall be followed for the risk assessment of employees with a cardiac AIMD exposed to EMF, according to the EU regulation, and in particular to the EN 50527-2-1:2016 and 50527-2-2:2018 standards. Then, three case studies related to specific EMF sources are presented, to better describe how the initial analysis of the risk assessment can be performed in practice, and to understand if a further specific risk assessment analysis is required or not.
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  • 文章类型: Journal Article
    OBJECTIVE: There has been a growing concern about the possible carcinogenic effects of the electromagnetic radiofrequency fields emitted from mobile phones. The purpose of this study was to investigate the association between mobile phone use and the development of gliomas in Korea.
    METHODS: Our study methods were based on the International Interphone study that aimed to evaluate possible adverse effects of mobile phone use. This study included 285 histologically-confirmed Korean patients 15 to 69 years of age, with gliomas diagnosed between 2002 and 2007 in 9 hospitals. The 285 individually matched controls were healthy individuals that had their medical check-up in the same hospitals. Unconditional logistic regression was used to calculate the adjusted odds ratios (aORs) and 95% confidence intervals (CIs) for use of mobile phones.
    RESULTS: For the entire group, no significant relationship was investigated between gliomas and regular use of mobile phones, types of mobile phones, lifetime years of use, monthly service fee, and the other exposure indices. Analyses restricted to self-respondents showed similar results. For ipsilateral users, whose the body side for usual mobile phone use match the location of glioma, the aORs (95% CIs) for lifetime years of use and cumulative hours of use were 1.25 (0.55 to 2.88) and 1.77 (0.32 to 1.84), respectively. However, the contralateral users showed slightly lower risk than ipsilateral users.
    CONCLUSIONS: Our results do not support the hypothesis that the use of mobile phones increases the risk of glioma; however, we found a non-significant increase in risk among ipsilateral users. These findings suggest further evaluation for glioma risk among long-term mobile phone users.
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