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首页> 外文期刊>大气环境学会志 >Effect of NO_x and VOC Controls for Surface Ozone Concentration in Summertime in Kanto Region of Japan
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Effect of NO_x and VOC Controls for Surface Ozone Concentration in Summertime in Kanto Region of Japan

机译：日本关东地区夏季NO_x和VOC控制对表层臭氧浓度的影响

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摘要

In recent years, the concentrations of precursors of ozone have been decreasing in Japan, but the ground-level ozone concentrations tend to increase. During the summertime in the Kanto region, anthropogenic emission control in Japan is an important factor for decreasing the ozone concentration. In this study, we conducted an air quality simulation using WRF and CMAQ with the anthropogenic emissions data in 2000 and 2005 to verify the effect of the emission controls between 2000 and 2005 on the ozone concentration in the Kanto region. The NOx and VOC reductions contribute to the increase in the daytime maximum ozone in the central Tokyo surrounding area but to the decrease in the other areas of the Kanto region. For the NOx reduction case, the daytime maximum ozone was increased in a wide area of the plains. On the other hand, The VOC reduction effectively works to decrease the ozone concentration in the entire Kanto area. Based on the results of the ozone sensitive analysis for a high concentration day, the NO_x sensitive and mixed sensitive regime account for half of the number of occurrences in inland Kanto area. Howeber, the VOC sensitive regime was the majority in the large city. These results show the effectiveness of the reduction of precursors to the decrease in the ozone concentration in each area of Kanto.
机译：近年来，日本的臭氧前驱物浓度一直在下降，但地面臭氧浓度趋于增加。在关东地区的夏季，日本的人为排放控制是降低臭氧浓度的重要因素。在这项研究中，我们使用WRF和CMAQ并结合2000年和2005年的人为排放数据进行了空气质量模拟，以验证2000年至2005年之间的排放控制对关东地区臭氧浓度的影响。减少NOx和VOC有助于东京中部周边地区白天最大臭氧含量的增加，而关东地区其他地区的臭氧含量却有所降低。对于减少NOx的情况，白天大范围的平原上的最大臭氧含量增加了。另一方面，减少VOC有效地降低了整个关东地区的臭氧浓度。根据高浓度日臭氧敏感分析的结果，NO_x敏感和混合敏感机制占内陆关东地区发生次数的一半。但是，在大城市中，VOC敏感制度占多数。这些结果表明减少前体对关东每个区域中臭氧浓度降低的有效性。

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