出版社:Chinese Association for Aerosol Research in Taiwan
摘要:To improve the credibility of chemistry schemes employed in chemical transport models(CTMs) aiming at predicting ozone mixing ratios in urban, rural, and regional scales, validation ofmodels not only by observational data of O3 and NOx but also by individual species of reactivenitrogen NOy is necessary because the formation and dissipation of O3 in the atmosphere occurvia reactions accompanying the transformation of NOx and NOy. The disagreement of thesimulated results of CTM with observational data of HNO3 and HONO have often been reported,and this paper reviews previous studies on the heterogeneous “renoxification” reaction ofgaseous HNO3 to form NO, NO2, and/or HONO; the formation of HONO from the heterogeneousdark reaction of NO2 and H2O, and the photolysis of adsorbed HNO3 and NO3– on surfaces. Forthe further validation of CTMs with individual species of NOy, previous field studies ofcomprehensive observation of NOy speciation in ground-based and aircraft campaigns have alsobeen reviewed. Studies combining observations of speciated NOy and model simulations need tobe performed to improve chemistry models used in CTMs.
关键词:Reactive nitrogen;Nitric acid;Nitrous acid;Ozone;Chemical transport model