Characteristics of chlorofluorocarbons (CFCs) emitted from a municipal waste treatment facility.
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.
Department of Environment & Energy, Sejong University, Seoul, Republic of Korea.
Ki-Hyun
KH
Kim
Sudhir Kumar
SK
Pandey
Hyo-Jae
HJ
Jo
Eui-Chan
EC
Jeon
D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D000397:Air Pollution / Q000706:statistics & numerical data; D017402:Chlorofluorocarbons / Q000032:analysis* / Q000737:chemistry; D004784:Environmental Monitoring; D012037:Refuse Disposal; D056910:Republic of Korea; D012621:Seasons
D000393:Air Pollutants; D017402:Chlorofluorocarbons