Department of Work Physiology and Ergonomics, Nofer Institute of Occupational Medicine, Łódź, Poland.
Int J Occup Med Environ Health. 2012 Mar;25(1):31-40. doi: 10.2478/s13382-012-0007-9. Epub 2012 Jan 5.
OBJECTIVES: The aim of our study was to assess the health conditions and subjective symptoms of the inhabitants living in the base stations vicinity and to analyse the relationship between the complaints and level of exposure to electromagnetic fields (EMF). MATERIALS AND METHODS: Our study was performed in housing estates located in five regions of Łódź. The electric field measurements were performed in the buildings located closest to the azimuth of the antennas. Respondents were selected by trained interviewers using an uniform procedure. The number of the households to be examined was set at a minimum of 420. The questionnaire contained: demographic data, occupational and environmental exposure to EMF, health condition, subjective complaints. Results were adjusted for confounders (age, gender, EMF at the workplace and EMF emitted by household equipment) using multiple regression model. RESULTS: 181 men and 319 women from 500 households were examined. Electric field above 0.8 V/m was recorded in 12% of flats. There was no significant correlation between electric field strength and the distance of examined flats from the base stations. To make possible comparison with relevant literature, we analysed also the frequency of the reported symptoms vs. the distance. Headache was declared by 57% people, most frequently (36.4%) living 100-150 m away from the base station compared to people living at longer distances (p = 0.013). 24.4% subjects, mostly living at a distance above 150 m, declared impaired memory. Difference was statistically significant in comparison with people living at other distances (p = 0.004). CONCLUSIONS: The explanation why we did not find any correlation between the electric field strength and frequency of subjective symptoms but found a correlation between subjective symptoms and distance from base station needs further studies. Maybe new metrics of exposure assessment should be adopted for this purpose.
目的:我们的研究旨在评估居住在基站附近的居民的健康状况和主观症状,并分析投诉与电磁场(EMF)暴露水平之间的关系。
材料和方法:我们的研究在罗兹市五个地区的住宅区进行。在与天线方位最接近的建筑物中进行电场测量。通过培训过的访谈员使用统一的程序选择受访者。检查的家庭数量设定为至少 420 户。问卷包括:人口统计学数据、职业和环境电磁场暴露、健康状况、主观投诉。结果使用多元回归模型进行了调整,以控制混杂因素(年龄、性别、工作场所的电磁场和家用电器发出的电磁场)。
结果:从 500 户家庭中检查了 181 名男性和 319 名女性。在 12%的公寓中记录到电场强度超过 0.8 V/m。检测公寓与基站的距离与电场强度之间没有显著相关性。为了与相关文献进行比较,我们还分析了报告症状的频率与距离之间的关系。头痛被 57%的人报告,居住在基站 100-150 米范围内的人最常见(36.4%),与居住在更远距离的人相比(p = 0.013)。24.4%的人,主要居住在距离超过 150 米的地方,报告记忆力减退。与居住在其他距离的人相比,差异具有统计学意义(p = 0.004)。
结论:我们没有发现电场强度与主观症状频率之间存在相关性,但发现主观症状与基站距离之间存在相关性的原因需要进一步研究。也许应该采用新的暴露评估指标来实现这一目标。
Int J Occup Med Environ Health. 2012-1-5
Neurotoxicology. 2007-3
Sci Total Environ. 2009-10-12
Pol Merkur Lekarski. 2005-10
Int J Environ Res Public Health. 2017-3-1