| 不同粒径大气颗粒物中金属元素含量及其对人双核淋巴细胞微核率的影响 |
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| 引用本文： | 原福胜,马亚萍,武忠诚.不同粒径大气颗粒物中金属元素含量及其对人双核淋巴细胞微核率的影响[J].卫生研究,1999,28(1):21-22. |
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| 作者姓名： | 原福胜 马亚萍 武忠诚 |
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| 作者单位： | 山西医科大学环境卫生学教研室,太原,030001 |
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| 摘 要： | 运用ＤＦＪ－１型五段分级采样器采集太原市居民区大气颗粒物，用原子吸收分光光度法测定不同粒径颗粒物上４种金属元素Ｎｉ、Ｐｂ、Ｃｄ和Ｃｒ的含量，以双核淋巴细胞微核试验检测不同粒径颗粒物的诱变性。结果显示：太原市居民区大气颗粒物污染严重；颗粒物越小，所含金属元素量越多，小于１．１μｍ的颗粒物含金属元素量最多；不同粒径颗粒物提取液均可诱发双核细胞微核增加，尤以１．１μｍ下颗粒物诱发微核率较强，表明颗粒物具有致突变作用
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| 关 键 词： | 大气颗粒物 微核 双核淋巴细胞 |
Content of metals in different diameter airborne particles and effect on micronuclei formation in human lymphocytes |
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| Yuan Fusheng,Ma Yaping,Wu Zhongcheng.Content of metals in different diameter airborne particles and effect on micronuclei formation in human lymphocytes[J].Journal of Hygiene Research,1999,28(1):21-22. |
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| Authors: | Yuan Fusheng Ma Yaping Wu Zhongcheng |
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| Institution: | Department of Environmental Hygiene, Shanxi Medical University, Taiyuan 030001, China. |
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| Abstract: | Using a five stage sampling scheme, airborne particles were collected in a residential area of Taiyuan city. The contents of four metals, including Ni, Pb, Cd and Cr in different diameter airborne particles were determined by atomic absorption spectrophotometry. The mutagenicity of the extracts of airborne particles was investigated by means of Cytokinesis-blocking(CB) method. The results showed that the pollution of airborne particles in the residential area was very serious. The smaller the airborne particles are the more it contains metal elements. The metal content of the particles less than 1.1 microns is the highest among different diameter airborne particles. The extracts of airborne particles induced a significant increase in micronuclei formation to a certain degree, especially the particles less than 1.1 microns increased in micronuclei formation. It is suggested that the extracts of different diameter particles are with strong mutagenicity. |
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| Keywords: | airborne particles \ micronucleus \ binucleate lymphocytes |
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