首页> 外文会议>Air Waste Management Association's annual conference exhibition >The Sensitivity of the Annual Emissions Estimations of VOC, CO, NOX, SO2, NH3, PM2.5, and CO2 from Onroad Mobile Sources by Using Annual Average versus Monthly Values of Temperature, Absolute Humidity, and Fuel RVP
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The Sensitivity of the Annual Emissions Estimations of VOC, CO, NOX, SO2, NH3, PM2.5, and CO2 from Onroad Mobile Sources by Using Annual Average versus Monthly Values of Temperature, Absolute Humidity, and Fuel RVP

机译:通过使用年平均值与温度,绝对湿度和燃料RVP的年平均值,VOC,CO,NOX,SO2,NH3,PM2.5和CO2的年排放量估计的敏感性来自onroad移动来源

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Annual on-road mobile source emissions must be updated every three years according to the U.S. Environmental Protection Agency (EPA). To estimate annual emissions, it is possible to use either annual average inputs or monthly input values of temperature, absolute humidity, and fuel Reid Vapor Pressure (RVP). The EPA’s computer model, MOBILE6.2 (6.2.01) was used to estimate mobile source emissions. The latest available traffic data for the year 2002 obtained from the Tennessee Department of Transportation (TDOT) were used. This data included the estimates of vehicle speeds, truck mix, and vehicle miles of travel, by county and roadway type. Monthly average values of min/max temperatures, absolute humidity, and fuel RVP were used to obtain monthly and annual emissions. Annual emissions from monthly estimates were compared to emissions estimated by using annual average inputs of temperature, absolute humidity, and fuel RVP values. The findings were that it is important to use monthly average values of temperature, humidity, and fuel RVP to accurately estimate annual emissions for VOC and CO. No significant differences were calculated in annual emissions for NOx, SO2, NH3, PM2.5, PM10, and CO2 between the two methods. Monthly variations in Vehicle Miles Traveled (VMT) in Tennessee affect all emission estimates with the highest VMT occurring in July and the lowest in January. Monthly variations in temperatures and fuel RVP values significantly affect VOC and CO emissions. This study found that estimating annual emissions using monthly inputs is important for the pollutants, VOC and CO. This is a different conclusion from the previous research on mobile source emissions in Florida. Monthly emission variations were also investigated. It was found that emission factors of VOC and CO are dependent on temperature and RVP values. Humidity and temperatures are the most important factors affecting NOx emissions.
机译:每年在道路移动源排放量必须根据美国环境保护署(EPA)每三年进行更新。为了估计每年排放,可以使用任一年度平均输入或温度,绝对湿度,和燃料雷德蒸汽压(RVP)的每月的输入值。 EPA的计算机模型,MOBILE6.2(01年2月6日)被用来估计移动源排放。被用于从运输的田纳西部门(TDOT)获得2002年度最新的流量数据。该数据包括车速,车混,和旅行车辆英里,由县级和道路类型的估计。最小/最大的温度,绝对湿度,和燃油RVP值的月平均值用于获得每月和每年的排放量。从每月估计每年排放进行了比较,通过使用温度的年平均输入,绝对湿度,和燃料RVP值来估计排放。结果是,它使用的温度,湿度,和燃料的RVP月平均值,以精确地估计每年排放的VOC和CO是重要的。没有显著差异在用于NOx,SO2,NH 3,PM2.5,PM10每年排放计算和这两种方法之间的CO2。在田纳西州的车辆行驶里程(VMT)每月的变化会影响最高VMT发生在七月和最低的月份所有的排放量估计。在温度和燃料RVP值的月变化显著影响VOC和CO排放。这项研究发现,估计每月使用输入年度排放是污染物,VOC和CO很重要的。这是一个在佛罗里达州的移动源排放以往的研究不同的结论。每月排放的变化进行了研究。据发现,VOC和CO的排放因子取决于温度和RVP值。湿度和温度是影响NOx排放的最重要因素。

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