Haris Hafizal Abd HamidMohd Talib LatifMohd Shahrul Mohd NadzirRoyston UningMd Firoz KhanNarayanan Kannan2024-05-102024-05-102019Hamid, H. H. A., Latif, M. T., Nadzir, M. S. M., Uning, R., Khan, M. F., & Kannan, N. (2019). Ambient BTEX levels over urban, suburban and rural areas in Malaysia. Air Quality, Atmosphere & Health, 12, 341-351.https://repoemc.ukm.my/handle/123456789/540Benzene, toluene, ethylbenzene and xylene isomers (BTEX) are volatile organic air pollutants of concern which arise from natural and anthropogenic sources. This study aims to determine and evaluate the BTEX levels in ambient air in selected areas of Malaysia, namely: Kuala Lumpur (KL-urban), Penang (PG-urban), Bangi (BG-suburban), Langkawi (LGK-suburban) and the Danum Valley (DV-rural). Active sampling with sorbent tubes was applied in this study and samples were analysed using thermal desorption (TD) coupled with gas chromatography-mass spectrometry (GC-MS).enVOCsActive samplingGas chromatographyBTEX ratioCancer riskJournal