【摘要】 通过高速公路隧道法测试各种机动车在正常行驶状态下的VOCs排放,研究了机动车VOCs的排放特征和排放因子。试验为避免城市内隧道实验时受交通路况和车型等因素限制,选取连霍高速的康店隧道作为研究对象,得到31种C3~C12范围内的VOCs排放因子,排放因子由大到小前三位是甲苯(8.74±6.12)mg/(km·辆)、萘(8.06±7.04)mg/(km·辆)、苯(5.63±2.88)mg/(km·辆),轻型车、重型车和客车的排放因子依次为:4.89mg/(km·辆)、4.87 mg/(km·辆)和8.46mg/(km·辆)。试验数据在一定程度上反映了机动车匀速行驶条件下的VOCs排放状况,可为机动车污染控制提供研究基础。更多还原

【Abstract】 The emission of VOCs from vehicles under normal driving conditions is tested by the highway tunnel test to study the emission characteristics and emission factors of VOCs.Kangdian tunnel along Lian-Huo Expressway was selected to avoid some limiting factors,such as road traffic and vehicle types.The experiment results presented emission factors covering thirty-one species of VOCs from C3 to C12.Top 3 VOCs species with the highest emission factors were toluene,naphthalene and benzene andtheir emission factors were（8.74±6.12）mg·km^-1·veh^-1,（8.06±7.04）mg·km^-1·veh^-1 and（5.63±2.88）mg·km^-1·veh^-1,respectively.The emission factors for light duty vehicles,heavy duty vehicles and passenger vehicles were 4.89 mg·km^-1·veh^-1,4.87 mg·km^-1·veh^-1 and 8.46 mg·km^-1·veh^-1,respectively.The results reflect the VOCsemissions of the motor vehicle under the condition of constant running,providing the research foundation for the pollution control to a certain extent.更多还原