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首页> 外文期刊>International Journal of Environmental Research and Public Health >Rubbertown Next Generation Emissions Measurement Demonstration Project
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Rubbertown Next Generation Emissions Measurement Demonstration Project

机译：Rubbertown下一代排放量测量示范项目

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Industrial facilities and other sources can emit air pollutants from fugitive leaks, process malfunctions and area sources that can be difficult to understand and to manage. Next generation emissions measurement (NGEM) approaches executed near facilities are enabling new ways to assess these sources and their impacts to nearby populations. This paper describes complementary uses of emerging NGEM systems in a Louisville, KY industrial district (Rubbertown), focusing on an important area air toxic, 1,3-butadiene. Over a one-year deployment starting in September 2017, two-week average passive samplers (PSs) at 11 sites showed both geospatial and temporal trends. At 0.24 ppbv annual average 1,3-butadiene concentration, a group of PSs located near facility fence lines was elevated compared to a PS group located in the community and upwind from facilities (0.07 ppbv average). Two elevated PS periods capturing emission events were examined using time-resolved NGEM approaches as case studies. In one event a 1.18 ppbv PS reading was found to be relatively localized and was caused by a multiday emission from a yet to be identified, non-facility source. In the other event, the airshed was more broadly impacted with PS concentrations ranging from 0.71 ppbv for the near-facility group to 0.46 ppbv for the community group. This case was likely influenced by a known emission event at an industrial facility. For both case studies, air pollutant and wind data from prototype NGEM systems were combined with source location models to inform the emission events. This research illustrates the power of applying NGEM approaches to improve both the understanding of emissions near sources and knowledge of impacts to near-source communities.
机译：工业设施和其他来源可能由于难以理解和管理的逃逸性泄漏，过程故障和区域来源而排放空气污染物。在设施附近执行的下一代排放物测量（NGEM）方法为评估这些来源及其对附近居民的影响提供了新的途径。本文描述了新兴的NGEM系统在肯塔基州路易斯维尔工业区（橡胶镇）的互补用途，重点关注空气中有毒的重要区域1,3-丁二烯。从2017年9月开始为期一年的部署中，在11个站点上平均为期两周的被动采样器（PS）显示了地理空间和时间趋势。在年平均1,3-丁二烯浓​​度为0.24 ppbv时，位于设施围栏附近的一组PS比位于社区和设施上风处的PS组高（平均0.07 ppbv）。作为案例研究，使用时间分辨的NGEM方法检查了两个捕获排放事件的PS升高期。在一种情况下，发现1.18 ppbv PS读数相对定位，并且是由尚未确定的非设施来源发出的多日排放量引起的。在另一种情况下，气域受到的影响更为广泛，PS浓度范围从近设施组的0.71 ppbv到社区组的0.46 ppbv。这种情况很可能受到工业设施中已知排放事件的影响。对于这两个案例研究，将原型NGEM系统中的空气污染物和风数据与源位置模型相结合，以告知排放事件。这项研究说明了应用NGEM方法来增强对源附近排放物的理解以及对近源社区影响的了解的力量。

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