Burgard Daniel A, Bishop Gary A, Stedman Donald H, Gessner Viktoria H, Daeschlein Christian
Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80208, USA.
Environ Sci Technol. 2006 Nov 15;40(22):6938-42. doi: 10.1021/es060989a.
On-road measurements in 2005 of carbon monoxide (CO), hydrocarbons, nitric oxide, nitrogen dioxide, and sulfur dioxide from 1641 individually identified heavy-duty diesel trucks at two locations in Colorado are reported. Carbon monoxide and nitric oxide show increasing emissions with increased altitude. Oxides of nitrogen (NOx) emissions have decreased with more recent model years over the last 10 years but are the same as vehicles that are 20 years old. At the Golden, CO site, there was a statistically significant decrease in fleet emissions of CO and NOx since a similar study in 1999. There was no emission trend for CO or NOx with gross vehicle weight or odometer in units of grams of pollutant per kilogram of fuel consumed. Data from this study suggest that on-road remote sensing can detect illegal, high sulfur fuel use from individual heavy-duty diesel trucks. Ammonia emissions from this study were below the detection limit of the instrument but will be useful as a baseline value for future comparison.
报告了2005年在科罗拉多州两个地点对1641辆单独识别的重型柴油卡车的一氧化碳（CO）、碳氢化合物、一氧化氮、二氧化氮和二氧化硫进行的道路测量结果。一氧化碳和一氧化氮排放量随海拔升高而增加。在过去10年中，氮氧化物（NOx）排放量随着车型年份的更新而减少，但与20年车龄的车辆排放量相同。在科罗拉多州戈尔登市的站点，自1999年进行类似研究以来，车队的一氧化碳和氮氧化物排放量在统计学上有显著下降。以每消耗一千克燃料的污染物克数为单位，一氧化碳或氮氧化物排放量与车辆总重或里程表读数之间没有排放趋势。这项研究的数据表明，道路遥感可以检测到个别重型柴油卡车非法使用高硫燃料的情况。本研究中的氨排放量低于仪器的检测限，但将作为未来比较的基线值。
