• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.04a
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• pp.327-328
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• 2002

대기권 오존의 90%정도가 성층권의 15-30km 부근에 존재한다. 성층권에 존재하는 오존은 대류권에서 생성된 오존과 화학식은 동일하지만 대기 중의 생성과정과 유발시킬 수 있는 피해 정도가 다르다. 성층권 오존은 직접적으로 생체 DNA 변성, 피부암 등을 야기 시키는 자외선을 흡수ㆍ차단시켜 주므로 인간 및 동ㆍ식물에게는 중요한 기체이다. 이러한 성층권 오존이 인간에 의해 배출되는 오염물질 염화불화탄소(CFCs), 할로겐 가스등에 의해 파괴되고 있다. (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2008.04a
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• pp.271-273
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• 2008

• Economic and Environmental Geology
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• v.40 no.1 s.182
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• pp.129-140
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• 2007

CFC(CFC-12, CFC-11 and CFC-113) analytical system for air and water was constructed using a customized purge and trap extraction device and a gas chromatograph with an electron capture detector. Sampling methods of air and water for CFCs were also established. The analytical system was experimentally optimized to result in reproducibilities of triplicates less than 2% for current air samples and less than 5% for groundwater samples with CFC-12 concentration of 160 to 180 pg/kg, and verified with respect to the CFC system in USGS, which showed analytical results were in agreement within 10%. CFCs in air were monitored at three sites over 19-month period in the central part of South Korea, and the result indicates no significant local sources of CFCs in those areas. For groundwater in Jeju Island, CFCs were measured over a year with a two-month interval. The time-series data showed seasonal fluctuations which could be interpreted by the effect of recharge pulse derived from large amount of rainfall during monsoon period with a few month delay, which indicates high permeability of basaltic rocks in Jeju Island.