Anthropogenic and biogenic volatile organic compounds and ozone formation potential in ambient air of Kuala Lumpur, Malaysia

H. H.A. Hamid, M. H.M. Hazman, Mohd Shahrul Mohd Nadzir, R. Uning, Mohd Talib Latif, N. Kannan

Research output: Contribution to journalConference article

Abstract

The measurement of anthropogenic and biogenic volatile organic compounds (VOCs) in urban air is important because of their toxic effects and because they can produce secondary air pollutants (e.g. ozone, particulate matter). Benzene, toluene, ethylbenzene and xylenes (BTEX), representing anthropogenic VOCs (AVOCs), and isoprene, a biogenic VOC (BVOC), were monitored at an urban site in Kuala Lumpur (KL). Active sampling was conducted using sorbent tubes packed with Tenax® TA/1 TD for 5 days (daytime). Analysis of VOCs was performed using Thermal Desorption-Gas Chromatography Mass Spectrometry (TD-GCMS). Average daytime concentrations of VOCs were 9.42 ± 6.15 μg/m 3 for benzene, 35.04 ± 12.60 μg/m3 for toluene, 11.20 ± 4.17 μg/m 3 for ethylbenzene, 19.19 ± 10.76 μg/m 3 for m,p-xylene, 18.40 ± 8.56 μg/m 3 for o-xylene, and 6.70 ± 1.57 μg/m 3 for isoprene. Weekday BTEX levels were found to be higher, especially during the morning rush hour, demonstrating the impact of traffic emissions in KL. BVOCs (isoprene) in urban KL was also higher than the reported isoprene level in Malaysian forest areas but lower than palm plantation areas. Both AVOCs and BVOCs significantly contributed to (218.6 - 733.8 μg/m 3 ) ozone formation in the KL atmosphere.

Original languageEnglish
Article number012001
JournalIOP Conference Series: Earth and Environmental Science
Volume228
Issue number1
DOIs
Publication statusPublished - 15 Feb 2019
Event3rd International Conference on Science and Technology Applications in Climate Change, STACLIM 2018 - Ayer Keroh. Malacca, Malaysia
Duration: 13 Nov 201815 Nov 2018

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ambient air
volatile organic compound
isoprene
ozone
BTEX
xylene
urban site
traffic emission
toluene
benzene
particulate matter
desorption
gas chromatography
plantation
mass spectrometry
atmosphere
sampling
air

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Anthropogenic and biogenic volatile organic compounds and ozone formation potential in ambient air of Kuala Lumpur, Malaysia. / Hamid, H. H.A.; Hazman, M. H.M.; Mohd Nadzir, Mohd Shahrul; Uning, R.; Latif, Mohd Talib; Kannan, N.

In: IOP Conference Series: Earth and Environmental Science, Vol. 228, No. 1, 012001, 15.02.2019.

Research output: Contribution to journalConference article

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AU - Uning, R.

AU - Latif, Mohd Talib

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