Mutagenicity of the exhaust particulates of 5 domestic and imported boost-cycle has been conducted using V79 cells micronucleus test.

对5种牌号的助动车尾气颗粒提取物进行V_（79） 细胞微核试验。

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Conclusion the direct acting mutagens in soluble organic fraction (SOF) of diesel exhaust particulates could remarkably damage the DNA of cells.

结论柴油机排气微粒有机可溶成分中的直接致突变物对细胞DNA具有明显的损伤作用。

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Conclusions Exhaust particulates from diesel engines can lead to transformation of NIT3T3 cells and this occupational hazard should not be neglected.

结论柴油机废气颗粒提取物具有不同程度的致细胞转化作用，柴油机废气颗粒物的职业性危害不容忽视。

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Diesel exhaust emissions from lorries, which contain concentrations of particulates, are responsible for many of the 9, 000 deaths a year attributed to particulate emissions by the government's expert advisory body.

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