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【学术报告】Symposium on Sustainable Chemistry and Engineering

时间:[2018-04-11]  来源:食品与环境学院、科研与学科工作部  点击量:

 

题   目: Symposium on Sustainable Chemistry and Engineering

 

  间:2018年04月25日 15:30 - 17:00

 

  点: G01 – E402 会议室 

 

  人: David Allen

 

报告人简介:

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Dr. David Allen为美国德克萨斯大学奥斯汀分校 (University of Texas at Austin, UTA) 化学工程学院的Gertz Regents教授,任UTA能源与环境资源中心主任,2017年当选美国工程院的院士。Dr. David Allen主要从事大气环境质量监测与模拟、可持续的能源与环境管理、环境系统工程等方面研究,他的研究成果对于美国大气环境管理政策的制定,产生了重要影响。20122015年间他担任美国环境保护局科学顾问委员会主席也曾任职于多个政府咨询小组。Dr. David Allen出版了七部著作,发表了250多篇论文。他是美国化学学会ACS Sustainable ChemistryEngineering期刊的创始主编。他编著的工科教材被多所大学的核心课程所采用,他也为高中生编写了工程教育教材。

 

报告摘要:

In Houston, a combination of urban emissions from a city of 4 million people, coupled with emissions from extensive petroleum refining and chemical manufacturing, leads to conditions for photochemistry that are unique in the United States, and historically, the city had experienced some of the highest ozone concentrations recorded in the United States.  Large air quality field studies (the Texas Air Quality Studies or TexAQS I and II) were conducted to determine root causes of the high ozone concentrations.  Hundreds of air quality investigators, from around the world, deployed instruments on aircraft, on ships, and at fixed ground sites to make extensive air quality measurements; detailed photochemical modeling was used to interpret and assess the implications of the measurements.  The Texas Air Quality Studies revealed that both continuous and episodic emissions of light alkenes, which came to be called highly reactive volatile organic compounds (HRVOCs), played a critical role in the formation of ozone and other photochemical oxidants in the region.  Understanding and quantifying the role of these emissions in regional air quality required innovations in characterizing emissions and in photochemical modeling.  Reducing emissions required innovative policy approaches. These coupled scientific and policy innovations are described, and the result, substantially cleaner air for Houston, is documented.  The lessons learned from the Houston air quality experience are relevant to cities with similar population and industrial profiles around the world.



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