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A list of 31 VOCs with risk limits for human health is obtained by sorting out the compounds in the in vehicle/indoor air quality guidelines of 11 countries. M1 type new vehicles are chosen as objects, a quantitative analysis of 104 volatile organic compounds in cabin of vehicle is conducted based on the summa canister gas chromatography-mass spectrometry method. The test results are compared with the list guidelines to screen for risk volatile organic compounds in cabin of vehicle. Except for the 8 items in the international standard, the screening result shows risk volatile organic compounds in the cabin of vehicle include dichloromethane (2.45~706 μg/m3), vinyl acetate (0.91~440 μg/m3), 4-methyl-2-pentanone (0.49~372 μg/m3), naphthalene 0~24.2 μg/m3), butadiene (0.14~4.80 μg/m)3, carbon tetrachloride (0~7.15 μg/m3), trichloroethylene (0~5.01 μg/m3), 1,2-dibromoethane (0~1.59 μg/m3). Suggestions for the subsequent revision of the national standard for vehicle air quality include expanding the management list of VOCs in the indoor air, reevaluating the limit values of 8 substances in the current national standard, and setting 2 limit values for preventive and hazardous concentrations.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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