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首页> 外文会议>Air Waste Management Association's annual conference exhibition >Vehicle-based Measurement of PM10 Paved Road Dust Emissions in Las Vegas, NV: Spatial Distribution of Emissions Using TRAKER
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Vehicle-based Measurement of PM10 Paved Road Dust Emissions in Las Vegas, NV: Spatial Distribution of Emissions Using TRAKER

机译：基于车辆的PM10铺设的道路尘埃排放Las Vegas，NV：使用跑床的排放空间分布

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The broad goal of this study was to assess the state of vehicle-based technologies for measurement of road dust emission potential as a possible alternative to inferring emission factors from silt loading measurements. A set of roads with a combined length of 150 km was pre-selected for the purpose of PM10 road dust emission measurement. The “loop” formed by these roads covered a variety of street types including freeway, arterial, and residential roads from several geographic locations within the Las Vegas Valley. Overall, analysis of TRAKER (Testing Re-entrained Aerosol Kinetic Emissions from Roads) results showed that emission factors in grams per vehicle kilometer traveled were generally higher for low speed roads such as residential streets than for high speed roads such as freeways. The emission potential, which is considered a measure of the inherent “dirtiness” of the road showed similar trends. Since the same loop was sampled by TRAKER on two consecutive days, it was possible to estimate the inter-measurement precision of the emission potentials. On a road link basis, the percent deviation between the first and second day followed a roughly normal distribution with an average near zero and a standard deviation of 10%. This indicated that, at least for the two sampling days considered, the day-to-day precision of the TRAKER measurement is reasonably good. It was hypothesized that this was in part because winds were generally low (< 4 m/s) during both sampling days.In addition to the DRI-developed TRAKER, the University of California in Riverside (UCR) demonstrated a technology (SCAMPER) that is similar in concept, but differs in measurement configuration. A comparison of results obtained by the TRAKER and SCAMPER systems will be conducted in future work.
机译：本研究的广泛目的是评估基于车辆的技术，用于测量道路粉尘排放潜能，作为推断淤泥加载测量的可能替代方案。为PM10道路粉尘排放测量进行预先选择一组长度为150公里的道路。这些道路形成的“循环”涵盖了各种街道类型，包括来自拉斯维加斯山谷的几个地理位置的高速公路，动脉和住宅道路。总体而言，跑床分析（检测从道路重新征收气溶胶动力学排放）结果表明，低速道路（如高速公路）的低速道路，每辆车公里的克的排放因子一般越来越高。被认为是道路上固有的“肮脏”的衡量标准的排放潜力显示出类似的趋势。由于在连续两天被静脉采样相同的环，因此可以估计发射电位的测量间精度。在道路链接基础上，第一天和第二天之间的偏差偏差跟随大致正常的分布，平均接近零，标准差为10％。这表明，至少用于考虑的两个取样天，跑床测量的日常精度合理。假设这部分是因为在抽样日期间风通常很低（<4米/秒）。除了河滨加利福尼亚大学（UCR）的加州大学除了Dri开发的特拉，展示了一种技术（诈骗）在概念中类似，但在测量配置中不同。将在未来的工作中进行由跑床和诈骗系统获得的结果的比较。

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