Ileperuma, O.A.Abeyratne, V.D.K.2013-06-242013-06-242002Ceylon Journal of Science (Physical Sciences), 9(1):p.54-61https://dl.nsf.gov.lk/handle/1/9834Chemical SciencesAir pollutionActive gas sampling techniquePassive gas sampling techniqueMonitoring air pollution levels in Kandy using passive and active gas sampling techniquesA