...
首页> 外文期刊>Water, Air, and Soil Pollution >MODELLING STUDY OF PHOTOCHEMICAL OZONE CREATION POTENTIAL OF NON-METHANE HYDROCARBON
【24h】

MODELLING STUDY OF PHOTOCHEMICAL OZONE CREATION POTENTIAL OF NON-METHANE HYDROCARBON

机译:非甲烷烃光化学臭氧生成潜势的模型研究

获取原文
获取原文并翻译 | 示例
           

摘要

Using an atmospheric photochemical model, the photochemical ozone creation potential (POCP) values of non-methane hydrocarbon (NMHC) species are studied under different NMHC/NO_x ratios. The behavior of POCP values of NMHC changing with time is also discussed under the condition of higher NMHC/NO_x- ratios, referring to the situation of China. The following results can be obtained. Alkenes, high-reactivity alkanes and aromatics, and formaldehyde are the primary contributors of photochemical ozone; The POCP values of NMHC species vary with NMHC/NO_x ratios systematically. The POCP values of high reactivity species decrease with NMHC/NO_x ratio increasing, but the POCP values of low reactivity species change little. The POCP value for a given NMHC species varies with time of photochemical reactions. The POCP values of low reactivity species increase with time, but the POCP values of high reactivity species change little. NO_x, alkenes, aromatics, and aldehydes have higher reactivity and shorter lifetimes, therefore their transportation distances are limited and they mainly produce local pollution. Alkanes have lower chemical reactivity and longer lifetimes so that they can transport farther distance from their sources.
机译:使用大气光化学模型,研究了在不同NMHC / NO_x比下非甲烷碳氢化合物(NMHC)物种的光化学臭氧产生潜能(POCP)值。结合中国国情,讨论了在较高NMHC / NO_x-比的条件下,NMHC的POCP值随时间变化的行为。可获得以下结果。烯烃,高反应性烷烃和芳烃以及甲醛是光化学臭氧的主要贡献者。 NMHC种类的POCP值随NMHC / NO_x比率系统地变化。高反应性物种的POCP值随NMHC / NO_x比值的增加而降低,而低反应性物种的POCP值变化不大。给定NMHC物种的POCP值随光化学反应时间而变化。低反应物种的POCP值随时间增加,但高反应物种的POCP值变化不大。 NO_x,烯烃,芳烃和醛具有较高的反应活性和较短的寿命,因此它们的运输距离有限,并且它们主要产生局部污染。烷烃具有较低的化学反应性和较长的使用寿命,因此它们可以从其来源转移更远的距离。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号