연속측정방법을 이용한 도심권 대기질 내 저농도 황화합물의 관측에 대한 연구 = Continuous Measurements of Reduced Sulfur Gases in Urban Air

다국어 초록 (Multilingual Abstract)

In this study, the concentrations of major reduced sulfur compounds (H₂S, CH₃SH, DMS, and DMDS) were determined from ambient air in a monitoring station located in the mid-eastern area of Seoul. Measurements of sulfur species were conducted by the combination of on-line air sampling, thermal desorption, and capillary GC/PFPD analysis. A total number of 143 hourly samples were collected in the two time periods set between June and July 2003. The mean concentrations of four sulfur species measured in the whole study period were found on the order: DMS (535±183H) > H₂S (47±10) > DMDS (35±22) > CH₃SH (6.19±29.4 pptv). The results of this study show that the concentrations of DMS at the study area are generally higher than those reported previously in the oceanic environments, while those of other sulfur species are not easy to compare with due to the lack of data. The H₂S concentrations were generally higher during the daytime than the nighttime, whereas those of others generally exhibited a reversed diurnal pattern. The overall results of our study suggest that the distribution of major reduced S compounds should be controlled by diverse processes in the urban area.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 연구방법
• 3. 결과 및 토론
• 4. 결론
• 감사의 글
• 참고문헌

참고문헌 (Reference)

1 "환원황 화합물을 중심으로 한 매립가스의 조성에 대한 연구" 2004c

2 "환경대기 중 악취성분 황화합물(메틸메르캅탄, 황화수소, 황화메틸, 이황화메틸)에 대한 표준작업지침서 2-저농도 모드를 중심으로" 2004a

3 "환경대기 중 악취성분 황화합물(메틸메르캅탄, 황화수소, 황화메틸, 이황화메틸)에 대한 표준작업지침서 1-고농도 모드를 중심으로" 2004b

4 "제주지역을 중심으로 대기 중 황화합물의 관측" 416-423, 2002

5 "전주 산업단지 및 주변지역 VOCs 및 악취물질 모니터링" 전북대학교 33 : 159-170, 2002

6 "악취의 성분분석" 동화기술간 1994

7 "ToxFAQs for Methyl Mercaptan" DHHS/ATSDR. 1999

8 "The detection characteristics of GC/PFPD technique on reduced S compounds and its application to LFG samples"

9 "Sulphur and nitrogen compounds in variable marine/continental air masses at the southwest European coast" 115-, 1996

10 "Spatial and temporal variablity of atmospheric sulfur containing gases and particles during the ALBATROSS campaign" 105 (105): 433-, 2000a

11 "Solid adsorbent preconcentration and gas chromatographic analysis of sulfur gases" 848-851, 1978

12 "Seasonal variation of dimethylsulfide in the gas phase and of methanesulfonate and non-sea-salt sulfate in the aerosols phase in the Eastern Mediterranean atmosphere" 36 : 929-938, 2002

13 "Reduced sulfur compounds as malodor components in the ambient air of landfill environment"

14 "Preservation of atmospheric dimethyl sulphide samples on Tenax in sea-to-air flux measurements" 36 : 911-916, 2002

15 "Ocean-atmosphere interactions in the global biogeochemical cycle" 1-29, 1990

16 "New Directions Hydrogen sulphide from vehicle exhaust: exposure dynamics" 33 (33): 77-, 1999

17 "Natural sulphur species from the North Atlantic and their contribution to the United Kingdom sulphur budget" 475 488-2, 1992

18 "Measurements of dimethyl sulfide and H2S over the western North Atlantic and the tropical Atlantic" 389 396-23, 1990

19 "Impact of anthropogenic sources on carbonyl sulfide in Bejing city" 107 (107): 4769-, 2002

20 "Hydrogen sulfide,Geneva,Environmental Health Criteria" No. 19. 1981

21 "Health assessment document for hydrogen sulfide" EPA/600/80-86/026F. 1993

22 "Global inventory of sulfur emissions with 1.×1.resolution" 023 036-6, 1992

23 "Dimethylsulfide in marine air at Cape Grim, 41.S" 100 (100): 13-21, 1995

24 "Determination of carbon disulfide in natural waters by adsorbent preconcentration and gas chromatography with flame photometric detection" 670 673-2, 1987

25 "Characteristics of acid aerosols in the geothermal area of metropolitan Taipei, Taiwan" 37 (37): 61-62, 2003

26 "Biogenic sulphate generation in the Mediterranean Sea and its contribution to the sulphate anomaly in the aerosol over Israel and the Eastern Mediterranean" 34 (34): 453-3, 2000

27 "Atmospheric dimethylsulfide and sulfur species in aerosol and rainwater at a coastal site in New zealand" 101 (101): 041-, 1996

28 "Annual cycle of gaseous sulfur emissions from a new England Spartina Alterniflora marsh" 1411-1416, 1985

29 "A photochemical assessment of DMS sea-to-air flux as inferred from PEM-West A and B observations" 104 (104): 471-475, 1999