刘武忠, 艾自胜, 秦景香, 胡晓晴, 李明珠. 上海市宝山区居民住宅工频电磁场的接触水平[J]. 环境与职业医学, 2011, 28(6): 366-368.
引用本文: 刘武忠, 艾自胜, 秦景香, 胡晓晴, 李明珠. 上海市宝山区居民住宅工频电磁场的接触水平[J]. 环境与职业医学, 2011, 28(6): 366-368.
zhong , AI Zi-sheng , QIN Jing-xiang , HU Xiao-qing , LI Ming-zhu . Residential Power-frequency Electromagnetic Field Exposure in Baoshan District of Shanghai[J]. Journal of Environmental and Occupational Medicine, 2011, 28(6): 366-368.
Citation: zhong , AI Zi-sheng , QIN Jing-xiang , HU Xiao-qing , LI Ming-zhu . Residential Power-frequency Electromagnetic Field Exposure in Baoshan District of Shanghai[J]. Journal of Environmental and Occupational Medicine, 2011, 28(6): 366-368.

上海市宝山区居民住宅工频电磁场的接触水平

Residential Power-frequency Electromagnetic Field Exposure in Baoshan District of Shanghai

  • 摘要: 目的 调查宝山区居民住宅工频电磁场的接触水平。

    方法 选取160户居民住宅,分别测定每户住宅各房间不同部位在室内所有电器打开、关闭的状态下的工频电磁场强度。

    结果 家用电器关闭时,距高压线100 m以内的住宅工频电磁场强度均明显高于100 m以外的住宅;家用电器打开时,距高压线100 m以内、以外住宅工频电场强度无明显差别,距高压线100 m以内住宅工频磁感应强度明显高于100 m以外的住宅。无论家用电器开、关,居民住宅内工频电磁场强度均高于上海市环境电磁辐射本底值,但远远低于国家环保标准限值。同一房间内,工频电场强度房间中央高于床头,工频磁感应强度没有差别。

    结论 目前住宅内工频电磁场强度较室外本底值有所升高,但均明显低于国内外相关标准所确定的限值。

     

    Abstract: Objective To investigate residential power-frequency electromagnetic field exposure in Baoshan District, Shanghai.

    Methods A total of 160 residential households were selected and the intensity of power frequency electromagnetic field were recorded at various spots in residential households with household appliances on and off.

    Results In the state of appliances disconnected from power line, both the intensities of power-frequency electric field and the magnetic field in the houses within 100 m range to high voltage lines were significantly higher than those in the houses having more than 100 m gap to high voltage lines. Compared with the house beyond 100 m range to high voltage lines when appliances were on, there were no significant difference in the intensities of power-frequency electric field in the houses within beyond 100 m range to high voltage lines but the in tensities of power-frequency magnetic field were significantly higher which suggested a distance-dependent manner. No matter the on/off state of the household appliances, the intensities of power-frequency electric field and magnetic field were both higher than the background electromagnetic radiation of Shanghai, although they were far below the limits of national standards. In addition, the in tensities of power-frequency electric field at the center of the houses were higher than those off-center spots but no such pattern observed in the magnetic field measurement.

    Conclusion The residential power-frequency electromagnetic field levels in current study are higher than local background level and both far from the related national standards.

     

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