Characteristics of polynuclear aromatic hydrocarbons in ambient air through a long-term sampling program at a metropolitan city in Taiwan

Pen Chi Chiang, Yu Chun Chiang, E. E. Chang, Sheng Chi Chang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Polynuclear aromatic hydrocarbon (PAH) concentrations in total suspended particulate (TSP) matter as well as gaseous PAH contents are measured at an urban site adjacent to the capital of Taiwan. Several factors, such as seasonal variation, ring number, G/P (gas/particulate) ratio, and C-atom number, are utilized to characterize the pollution features of 14 PAHs. The results show that the total PAH content in TSP has been reduced gradually. The probable carcinogenic PAH compounds exist primarily in the particulate phase. The concentration distributions of each PAH compound are different, and the quantities and ring distributions of PAHs are significantly affected by seasonal fluctuation. The G/P ratio is highly associated with the C-atom number of PAHs. Factor analysis, along with the characteristic ratios of PAHs, is used to qualitatively identify the probable contributors. The results suggest that traffic exhaust and industrial origins are the predominant contributors.

Original languageEnglish
Pages (from-to)133-144
Number of pages12
JournalAerosol Science and Technology
Volume37
Issue number2
DOIs
Publication statusPublished - Feb 1 2003

Fingerprint

Aromatic hydrocarbons
Polycyclic Aromatic Hydrocarbons
aromatic hydrocarbon
ambient air
Polycyclic aromatic hydrocarbons
Sampling
PAH
sampling
Air
Gases
Atoms
Particulate Matter
urban site
suspended particulate matter
Factor analysis
gas
factor analysis
Pollution
seasonal variation
city

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Mechanical Engineering

Cite this

Characteristics of polynuclear aromatic hydrocarbons in ambient air through a long-term sampling program at a metropolitan city in Taiwan. / Chiang, Pen Chi; Chiang, Yu Chun; Chang, E. E.; Chang, Sheng Chi.

In: Aerosol Science and Technology, Vol. 37, No. 2, 01.02.2003, p. 133-144.

Research output: Contribution to journalArticle

Chiang, Pen Chi ; Chiang, Yu Chun ; Chang, E. E. ; Chang, Sheng Chi. / Characteristics of polynuclear aromatic hydrocarbons in ambient air through a long-term sampling program at a metropolitan city in Taiwan. In: Aerosol Science and Technology. 2003 ; Vol. 37, No. 2. pp. 133-144.
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