Fatimah AhamadMohd Talib LatifRosy TangLiew JunengDoreena DominickHafizan Juahir2024-05-102024-05-102014Ahamad, F., Latif, M. T., Tang, R., Juneng, L., Dominick, D., & Juahir, H. (2014). Variation of surface ozone exceedance around Klang Valley, Malaysia. Atmospheric research, 139, 116-127.https://repoemc.ukm.my/handle/123456789/476The total hourly surface ozone (O3) exceedance from the 100 ppbv hourly O3 standard set by the Department of Environment Malaysia (DOE) was analysed, as elevated O3 concentrations pose health risks to humans and harms vegetation. Air quality data from 2008 to 2010 were obtained from a total of seven stations located around the west coast of Peninsular Malaysia.enSurface ozoneNitrogen oxidesCluster analysisBack trajectoryJournal