Characteristics of chlorofluorocarbons (CFCs) emitted from a municipal waste treatment facility |
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| Institution: | 1. Department of Environment & Energy, Sejong University, Seoul, Republic of Korea;2. Department of Botany, Guru Ghasidas Central University, Bilaspur (C.G.) 495 009, India;1. Division of Epidemiology of Chronic Diseases and Vulnerable Populations, Department of Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, Massachusetts;2. Clinical and Population Health Research Program, Graduate School of Biomedical Sciences, University of Massachusetts Medical School, Worcester, Massachusetts;3. Division of Rheumatology, Tufts Medical Center, Boston, Massachusetts;4. Center for Primary Care and Prevention, Memorial Hospital of Rhode Island, Pawtucket, Rhode Island;5. Departments of Family Medicine and Epidemiology, Warren Alpert Medical School, School of Public Health, Brown University, Providence, Rhode Island;1. Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005, Odisha, India;2. Quantum Beam Unit, National Institute for Materials Science, Tsukuba, Ibaraki 305-0003, Japan;3. Wakasa wan Energy Research Center, Nagatani, Tsuruga, Fukui 914-0192, Japan;4. National Institute for Materials Science, Sengen, Tsukuba, Ibaraki 305-0047, Japan;1. Department of Mechanical Engineering, Hanyang University, Seoul 133-791, South Korea;2. Department of Mechanical Engineering, Hanyang University, Ansan 426-791, South Korea;1. Department of Molecular Medicine, Ewha Womans University School of Medicine, Yangcheon-gu, Seoul 158-710, Republic of Korea;2. Department of Pharmacology, School of Medicine, Eulji University, Jung-gu, Daejeon 301-746, Republic of Korea;3. Department of Biochemistry, Ewha Womans University School of Medicine, Yangcheon-gu, Seoul 158-710, Republic of Korea |
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| Abstract: | The emission concentrations of several chlorofluorocarbons (CFCs) were measured from a municipal waste treatment facility (located in Seoul, Republic of Korea) to investigate the emission characteristics of CFCs in the urban environment. To this end, a total of five CFCs (CFC-10, CFC-11, CFC-20, CFC-30, and CFC-113) were analyzed by the thermal desorption–gas chromatography–mass spectrometry (TD–GC–MS) method. The results of this study indicate that the formation of CFC-11 (8.21 ± 1.68 ppb in spring) and CFC-20 (3.92 ± 3.93 ppb in spring) proceeded very actively within the facility. Moreover, CFC-113 was also found in relatively high concentrations (3.34 ± 1.31 ppb in spring) in the treatment facility. Unlike other CFCs, CFC-10 was observed mainly at ambient (and reference) locations and one point inside the treatment facility. In conclusion, emissions of some important CFCs are a prominent process, as they were measured either frequently or abundantly both in winter and spring. It is further indicated that certain CFCs (like CFC-11 and CFC-30) are subject to highly significant seasonal variations. |
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