Sensitivity of ozone to bromine in the lower[1] Measurements of BrO suggest that inorganic bromine (Bry) at and above the tropopause is 4 to 8 ppt greater than assumed in models used in past ozone trend assessment studies....
Tropospheric ozone trend over beijing from 2001-2010: ozonesonde measurements and modeling analysis... Clearly enhanced ozone values and a negative vertical ozone gradient in the lower troposphere in the observational data emphasize the importance of photochemistry within the troposphere during spring and summer, and suggest that the photochemistry within the troposphere significantly contributes to the tropospheric ozone trend over Beijing during the last decade
Bro+ho2 cycle is also important. citation: salawitch, r. j.,(Bry) at and above the tropopause is 4 to 8 ppt greater than assumed in models used in past ozone trend assessment studies....
Tropospheric ozone trend over beijing from 2002–2010: ozonesonde measurements and modeling analysis... Clearly enhanced ozone values and a negative vertical ozone gradient in the lower troposphere in the observational data emphasize the importance of photochemistry within the troposphere during spring and summer, and suggest that the photochemistry within the troposphere significantly contributes to the tropospheric ozone trend over Beijing during the last decade
