Ozone production rate and hydrocarbon reactivity in 5 urban areas: A cause of high ozone concentration in Houston
Ozone production rate and hydrocarbon reactivity in 5 urban areas: A cause of high ozone concentration in Houston
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DOI：
10.1029/2001gl014569
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发表时间：
2002-05-15
影响因子：
5.2
通讯作者：
Rudolph, J
中科院分区：
文献类型：
--
作者：
Kleinman, LI;Daum, PH;Rudolph, J
[1]从德克萨斯州休斯顿、田纳西州纳什维尔、纽约州纽约、亚利桑那州凤凰城和宾夕法尼亚州费城上空的飞机飞行中获得的臭氧（O-3）和O-3前体的观测结果表明，休斯顿大气中高浓度的活性挥发性有机化合物（VOC）导致计算的O-3产生率比其他4个城市高2至5倍，即使NOx浓度相当。在休斯顿大都市区内，船舶通道地区的VOC浓度和O-3生产率最高;该地区是世界上最大的石化综合体之一。因此，休斯顿大都市地区的O-3浓度最近超过了250 ppb，这是美国观测到的最高值。在过去的5年里。
[1] Observations of ozone (O-3) and O-3 precursors taken from aircraft flights over Houston, TX, Nashville, TN; New York, NY; Phoenix, AZ, and Philadelphia, PA show that high concentrations of reactive volatile organic compounds (VOCs) in the Houston atmosphere lead to calculated O-3 production rates that are 2 to 5 times higher than in the other 4 cities even though NOx concentrations are comparable. Within the Houston metropolitan area, concentrations of VOCs and O-3 production rates are highest in the Ship Channel region; the location of one of the largest petrochemical complexes in the world. As a consequence the concentration of O-3 in the Houston metropolitan area has recently exceeded 250 ppb, the highest value observed in the U. S within the past 5 years.