Quantitative analysis of volatile organic compounds (VOCs) in atmospheric particles

ODABAŞI M., Ongan O., Cetin E.

ATMOSPHERIC ENVIRONMENT, cilt.39, sa.20, ss.3763-3770, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 20
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.atmosenv.2005.02.048
  • Dergi Adı: ATMOSPHERIC ENVIRONMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3763-3770
  • Anahtar Kelimeler: volatile organic compounds, thermal desorption, gas-particle partitioning, fine/coarse particles, AIR PARTITION-COEFFICIENT, ORGANOCHLORINE PESTICIDES, URBAN, CHICAGO, CARBON, PM2.5, PM10, PCBS
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

There are a number of difficulties associated with the quantitative analysis of volatile organic compounds (VOCs) in atmospheric particles. Therefore, majority of the previous studies on VOCs associated with particles have been qualitative. Air sample's were collected in Izmir, Turkey to determine ambient particle and gas phase concentrations of several aromatic, oxygenated and halogenated VOCs. Samples were quantitatively analyzed using thermal desorption-gas chromatography/mass spectrometry. Gas-phase concentrations ranged between 0.02 (bromoform) and 4.65 mu g m(-3) (toluene) and were similar to those previously measured at the same site. Particle-phase concentrations ranged from 1 (1,3-dichlorobenzene) to 933 pg m(-3) (butanol). VOCs were mostly found in gas-phase (99.9 +/- 0.25%). However, the particulate VOCs had comparable concentrations to those reported previously for semivolatile organic compounds. The distribution of particle-phase VOCs between fine. (d(p) < 2.5 mu m) and coarse (2.5 mu m < d(p) < 10 mu m) fractions was also investigated. It was found that VOCs were mostly associated with fine particles. (c) 2005 Elsevier Ltd. All rights reserved.