Journal of Fundamental and Applied Sciences Research Article ISSN 1112-9867 Special Issue Available online at http://www.jfas.info IN TRAIN AIR QUALITY ANALYSIS OF THE PUBLIC RAILWAY TRANSIT AND PUBLIC PERCEPTION ON IN-TRAIN AIR QUALITY IN MALAYSIA M. Masyita* and R. Nornadiah Environmental Health Section, Universiti Kuala Lumpur-Institute of Medical Science Technology, Kajang, Selangor, Malaysia Published online: 05 October 2017 ABSTRACT This study analyze the trend of in-train air quality in KTM Commuter in upstream and downstream lines, identify public’s perception and knowledge on in-train air quality. Real time monitoring was conducted by measuring five indoor air parameters (CO2, CO, PM10, temperature and humidity) along Klang Valley Line from SgBuloh until PelabuhanKlang station for five consecutive days, together with a survey on IAQ facts and symptoms related to indoor air pollutants among 129 KTM commuter passengers. Descriptive and correlation tests were performed using SPSS version 23. CO2and PM10 concentration in most of the time have exceeded permissible limit (max = 1449ppm and >0.15mg/m3). CO concentration was below permissible limit (<10ppm), whilsttemperature and humidity were mostly in an acceptable range (23-26°C; 40-70%rh). Keywords: In-train air quality (IAQ); KTM commuter carbon dioxide; carbon monoxide; particulate matter (PM); public perception. Author Correspondence, e-mail:
[email protected] doi: http://dx.doi.org/10.4314/jfas.v9i4s.46 Journal of Fundamental and Applied Sciences is licensed under a Creative Commons Attribution-NonCommercial 4.0 M. Masyit et al. J Fundam Appl Sci. 2017, 9(4S), 812-827 813 1. INTRODUCTION The urban transport system is evolving which eventually lead to traffic congestion.