Understanding the sources of atmospheric chlorine in a mid-continental megacity

EPSRC: Jordan Stewart: EP/ r513386 /1大气氧化剂负责降解和最终去除绝大多数排放到大气中的排放物。因此，如果我们要制定有效和及时的政策来解决空气质量和气候变化等紧迫的社会问题，就必须全面了解这种化学反应。氯原子是这些氧化剂中最不为人所知的，目前不包括在常规预测空气质量和气候的模型中。然而，过去十年的研究表明，氯的作用可能比之前认为的更重要。一个悬而未决的主要问题是大陆中部地区氯的来源，模型预测那里的氯含量很少。通过对现有的全球大城市空气质量国际测量项目的贡献，该项目将对中部大陆大城市（多伦多）的主要氯化合物进行测量。这将提供关于这一重要环境中氯来源的重要数据。

EPSRC : Jordan Stewart : EP/R513386/1Atmospheric oxidants are responsible for the degradation and ultimate removal of the vast majority of emissions into our atmosphere. A complete understanding of this chemistry is therefore essential if we are to develop effective and timely policies that address the pressing societal problems of air quality and climate change. Chlorine atoms are the least understood of these oxidants, and are currently not included in models that routinely forecast air quality and climate. However, work over the last decade suggests chlorine could be more important than previously thought. A major unanswered question is the source of chlorine in mid-continental regions, where models predict there to be very little. By contributing to an existing international measurement program looking at air quality in global megacities, this project will make measurements of key chlorine compounds in a mid-continental megacity (Toronto). This will provide vital data on the sources of chlorine in this important environment.