Alternative metrics for assessing the relative effectiveness of NOx and VOC emission reductions in controlling ground-level ozone
Alternative metrics for assessing the relative effectiveness of NOx and VOC emission reductions in controlling ground-level ozone
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DOI：
10.1080/10473289.1997.10464456
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发表时间：
1997-08-01
影响因子：
2.7
通讯作者：
Wang, S
中科院分区：
文献类型：
--
作者：
Georgopoulos, PG;Arunachalam, S;Wang, S
这项研究提出了一套新的度量标准，量化光化学空气污染系统的响应O-3前体水平的变化。这些新的衡量标准扩展了使用全域臭氧最大值作为指导制定排放控制战略的衡量标准的传统方法，纳入了战略制定所考虑的臭氧事件的时空普遍性和严重性的属性，以及对臭氧潜在暴露的影响。1988年7月新泽西-费城-特拉华州山谷地区发生的一场为期三天的严重风暴，通过一组26个模拟，证明了使用各种替代标准来更好地理解排放控制影响的方向性的有用性。这些模拟模拟了VOC和NOx全面减少25%、50%、75%和100%的基本情况的影响。发现这些减少的影响取决于控制目标（例如，暴露的减少相对于最大值的减少）以及控制目标的目标水平（例如，将接触量减少到120 ppb以下对比将接触量减少到80 ppb以下）。
This study presents a new set of metrics quantifying the response of photochemical air pollution systems to changes in O-3 precursor levels. Extending the traditional approach of using domain-wide maximum ozone values as the metric for guiding the development of emission control strategies, the new metrics incorporate attributes of the spatial and temporal pervasiveness and the severity of the ozone episodes considered for strategy development, as well as the impact on potential exposures to ozone. The usefulness of using various alternative criteria to better understand the directionality of the impact of emission controls is demonstrated via a set of 26 simulations of a three-day period of the severe July 1988 episode over the New Jersey-Philadelphia-Delaware Valley area. These simulations model the effect of across-the-board reductions of VOC and NOx by 25, 50, 75, and 100% of the base case. The impact of these reductions is found to be dependent on the control objective (e.g., reduction of exposure vs. reduction of the maximum) as well as on the targeted level of the control objective (e.g., reduction of exposures below 120 ppb vs. reduction of exposures below 80 ppb).