Analysis of Ozone Observation at Atmospheric Monitoring Network Station Using Brewer Ozone Spectrophotometer

Ozone (O-3) is unique among pollutants because it is not emitted directly into the air, and its results from complex chemical reactions in the atmosphere. O-3 can bring different effects for all the living on earth (either harm or protect), depending on where O-3 resides. This is the main reason why O-3 is such a serious environmental problem that is difficult to control and predict. The objective of this paper is to analyze the variations of total column O-3 measured by Brewer O-3 spectrophotometer over Global Atmosphere Watch Station (GAW) regional station, which is located at southwest of Peninsular Malaysia, Petaling Jaya. Total column O-3 observations in Petaling Jaya are studied for the period January 2008 to December 2008. Ozone shows seasonal variation with maximum (276.8 DU in May 2008) during pre-monsoon season and minimum (246.8 DU in January 2008) during northeast monsoon season. In addition, the monthly O-3 maps for the year of 2008 were obtained from the NASA-operated Giovanni portal to overview the distribution of total column O-3 in Peninsular Malaysia. For the upcoming studies, validation of ground measurements with satellite O-3 data and study of tropospheric O-3 over the study area is recommended.