Mohd Famey YusoffMohd Talib LatifaLiew JunengMd Firoz KhanFatimah AhamadJing Xiang ChungAnis Asma Ahmad Mohtar2024-05-102024-05-102019Yusoff, M. F., Latif, M. T., Juneng, L., Khan, M. F., Ahamad, F., Chung, J. X., & Mohtar, A. A. A. (2019). Spatio-temporal assessment of nocturnal surface ozone in Malaysia. Atmospheric environment, 207, 105-116.https://repoemc.ukm.my/handle/123456789/474This study aims to determine the level and potential sources of nocturnal surface ozone (NSO) in different regions in Malaysia. Eleven-year (2005-2015) ozone data from 37 continuous air quality monitoring stations throughout Malaysia have been analysed to determine spatio-temporal variations in NSO concentrations. NSO daily maximum concentrations from different regions in Malaysia were used for seasonal variation analysis while linear regression and the Mann-Kendall trend test were used for the annual variation analysis.enNocturnal surface ozoneSeasonal variationMonthly diurnal variationSecondary ozone maximumLong term trendJournal