Quantitative analysis of volatile organic compounds (VOCs) in atmospheric particles |
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| Institution: | 1. Department of Advanced Toxicology Research, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea;2. Jeonbuk Department of Inhalation Research, Korea Institute of Toxicology, Jeongeup 56212, Republic of Korea;3. Department of Environment & Energy, Jeonbuk National University, Jeonju, Jeollabukdo 54896, Republic of Korea;4. School of Civil, Environmental and Resources-Energy Engineering, Jeonbuk National University, Jeonju, Jeollabukdo 54896, Republic of Korea;5. Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 34134, Republic of Korea;6. Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea;1. Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji''nan 250100, China;2. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Institute of Atmospheric Sciences, Fudan University, Shanghai 200433, China;3. Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing 210008, China |
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| Abstract: | 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 samples 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 μg 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 (dp<2.5 μm) and coarse (2.5 μm<dp<10 μm) fractions was also investigated. It was found that VOCs were mostly associated with fine particles. |
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