Chemistry for Modeling the Effects of Halogen and Other Natural Marine Emissions on Coastal Urban Air Quality

摘要

Air quality managers in coastal cities should consider theeffects of halogen emissions in the development of air qualitypolicies. Stratospheric ozone (O_3) depletion by halogencompounds is well known,1 but it is less well recognized thathalogens affect tropospheric O_3 concentrations. Brominecompounds are largely responsible for depletion of O_3within the Arctic boundary layer and over the Dead Sea.2In addition to coastal cities, inland cities may also be impactedby natural halogen emissions due to their effects onbackground O_3 concentrations.3 Therefore, natural halogenemissions should concern environmental managers.