包田美, 田颖, 王丽霞, 武婷, 卢丽娜, 马鸿宇, 王丽. 包头市稀土矿周边居民区环境中镧、铈、镨、钕水平的调查[J]. 环境与职业医学, 2018, 35(2): 158-162. DOI: 10.13213/j.cnki.jeom.2018.17524
引用本文: 包田美, 田颖, 王丽霞, 武婷, 卢丽娜, 马鸿宇, 王丽. 包头市稀土矿周边居民区环境中镧、铈、镨、钕水平的调查[J]. 环境与职业医学, 2018, 35(2): 158-162. DOI: 10.13213/j.cnki.jeom.2018.17524
BAO Tian-mei, TIAN Ying, WANG Li-xia, WU Ting, LU Li-na, MA Hong-yu, WANG Li. Lanthanum, cerium, praseodymium, and neodymium levels in residential environment of rare earth ore area in Baotou City[J]. Journal of Environmental and Occupational Medicine, 2018, 35(2): 158-162. DOI: 10.13213/j.cnki.jeom.2018.17524
Citation: BAO Tian-mei, TIAN Ying, WANG Li-xia, WU Ting, LU Li-na, MA Hong-yu, WANG Li. Lanthanum, cerium, praseodymium, and neodymium levels in residential environment of rare earth ore area in Baotou City[J]. Journal of Environmental and Occupational Medicine, 2018, 35(2): 158-162. DOI: 10.13213/j.cnki.jeom.2018.17524

包头市稀土矿周边居民区环境中镧、铈、镨、钕水平的调查

Lanthanum, cerium, praseodymium, and neodymium levels in residential environment of rare earth ore area in Baotou City

  • 摘要: 目的 了解包头市稀土矿周边居民区空气、生活饮用水、土壤中稀土元素镧、铈、镨、钕的含量,为进一步评价环境中稀土元素对居民健康的影响提供数据支持。

    方法 选择包头市稀土矿区附近的居民区为暴露区,以包头市固阳县为对照区,两区同时采集具有代表性的空气样品、生活饮用水样品、土壤样品,采用电感耦合等离子体质谱法测定各环境样品中稀土元素镧、铈、镨、钕的含量。

    结果 暴露区空气中镧、铈、镨、钕的质量浓度中位数分别为0.075、0.164、0.013、0.041 μg/m3;生活饮用水中镧、铈、镨、钕的质量浓度中位数分别为0.107、0.164、0.023、0.076 μg/L;土壤中镧、铈、镨、钕的质量分数中位数分别为7.441、75.413、2.051、6.425 mg/kg。暴露区空气、生活饮用水、土壤中4种稀土元素的含量均高于对照区,差异有统计学意义(均P < 0.01)。暴露区各环境样品中稀土元素的含量分布为铈>镧>钕>镨。

    结论 包头市稀土矿居民区空气、生活饮用水、土壤中稀土元素镧、铈、镨、钕的含量均高于对照区。

     

    Abstract: Objective To investigate the levels of rare earth elements such as lanthanum, cerium, praseodymium, and neodymium in air, drinking water, and soil of a rare earth ore residential area, and provide data support for further evaluation of the impacts of environmental rare earth elements on the health of residents.

    Methods A residential area near a rare earth ore area in Baotou City was chosen as the exposed area, and Guyang County in Baotou as the control area. Representative samples of air, drinking water, and soil were collected in both areas simultaneously to determine the le vels of rare earth elements such as lanthanum, cerium, praseodymium, and neodymium by inductively coupled plasma mass spectrometry.

    Results In the exposed area:the median levels of lanthanum, cerium, praseodymium, and neodymium in air were 0.075, 0.164, 0.013, and 0.041 μg/m3, respectively; the median levels in drinking water were 0.107, 0.164, 0.023, and 0.076 μg/L, respectively; the median levels in soil were 7.441, 75.413, 2.051, and 6.425mg/kg, respectively. The levels of the four rare earth elements in air, drinking water, and soil samples collected in the exposed area were significantly higher than those in the control area respectively (Ps < 0.01). The levels of the four rare earth elements in the environmental samples of the exposed area from high to low were cerium > lanthanum > neodymium > praseodymium.

    Conclusion Higher levels of rare earth elements such as lanthanum, cerium, praseodymium, and neodymium in air, drinking water, and soil are determined in Baotou rare earth ore residential area than the control area.

     

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