Development of a direct measurement system of photochemical ozone production rate in the atmosphere

研制了一套光化学臭氧产生率测量系统。将环境空气引入发射太阳紫外线的反应室和阻挡紫外线的参照室。两个房间都放置在室外，以暴露在周围的太阳紫外线下。臭氧是在反应室中以光化学方式产生的。同时，参照室中没有形成臭氧。臭氧产生率可以通过将两个反应室之间的臭氧浓度差除以在反应室中的停留时间来获得。这些仪器已经建成，并对该仪器进行了优化和初步观测。

A measurement system of photochemical ozone production rates has been developed. Ambient air is introduced into the reaction chamber which transmits solar ultraviolet and the reference chamber which blocks UV. Both chambers are placed in the outside to be exposed to ambient solar UV. Ozone is photochemically produced in the reaction chamber. Meanwhile, no ozone is formed in the reference chamber. An ozone production rate can be obtained by dividing the difference of ozone concentrations between the two chambers by the residence time in the reaction chamber. These instruments have been constructed, and optimizationsof this instrument and preliminary observations have been conducted.