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This study investigated the exhaust emission of non-methane hydrocarbons (NMHCs) from cars in China at the Beijing driving cycle on the chassis dynamometer. The emission factor average of NMHCs was 0.9 g/km, which was over twice that from the Australian car fleet and 2–4 times that of the American car emission in the 1990s–2000s. The emission profile of Beijing cars showed higher fractions of aromatics...
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