HOME > 자연과학 > 기타(자연과학) > 한국환경과학회 > ENVIRONMENTAL SCIENCES
Estimation of Atmospheric Deposition Velocities and Fluxes from Weather and Ambient Pollutant Concentration Conditions : Part 1 . Application of multi-layer dry deposition model to measurements at north central Florida site
분야 자연과학 > 기타(자연과학)
저자 (Jong Yeon Hwang),(Eric R . Allen)
발행기관 한국환경과학회
간행물정보 ENVIRONMENTAL SCIENCES 2000년, 제4권 제1호, 31~42쪽(총12쪽)
파일형식 23101160.pdf [다운로드 무료 PDF 뷰어]
판매가격 4,200원
적립금 126원 (구매자료 3% 적립)
이 자료를
논문의 미리보기 2페이지를 PDF파일로 제공합니다.
The dry deposition velocities and fluxes of air pollutants such as SO_2(g), O_3(g), HNO_3(g), sub-micron particulates, NO_(3)^-(s), and SO_(4)^2-(s) were estimated according to local meteorological elements in the atmospheric boundary layer. The model used for these calculations was the multiple layer resistance model developed by Hicks et al. The meteorological data were recorded on an hourly basis from July, 1990 to June, 1991 at the Austin Cary forest site, near Gainesville FL. Weekly integrated samples of ambient dry deposition species were collected at the site using triple-filter packs. For the study period, the annual average dry deposition velocities at this site were estimated as 0.87±0.07 ㎝/s for SO_2(g), 0.65±0.11 ㎝/s for O_3(g), 1.20±0.14 ㎝/s for HNO_3(g), 0.0045±0.0006 ㎝/s for sub-micron particulates, and 0.089±0.014 ㎝/s for NO_(3)^-(s) and SO_(4)^2-(s). The trends observed in the daily mean deposition velocities were largely seasonal, indicated by larger deposition velocities for the summer season and smaller deposition velocities for the winter season. The monthly and weekly averaged values for the deposition velocities did not show large differences over the year yet did show a tendency of increased deposition velocities in the summer and decreased values in the winter. The annual mean concentrations of the air pollutants obtained by the triple filter pack every 7 days were 3.63±1.92 ㎍/㎥, for SO_(4)^(2-), 2.00±1.22 ㎍/㎥ for SO_(2), 1.03±0.59 ㎍/㎥ for HNO_(3), and 0.704±0.419 ㎍/㎥ for NO^(3-), respectively. The air pollutant with the largest deposition flux was SO_(2) followed by HNO_(3), SO_(4)^2-(s), and NO_(3)^-(s) in order of their magnitude. The sulfur dioxide and NO_(3)^(-) deposition fluxes were higher in the winter than in the summer, and the nitric acid and sulfate deposition fluxes were high during the spring and summer.
본 논문은 참고용 논문으로 수정 및 텍스트 복사가 되지 않습니다.
오늘 본 자료
오늘 본 자료가 없습니다.
장바구니 담은 자료
장바구니가 비어 있습니다.
이 간행물 인기자료
Surface Chemical Aspects of Coagula...
Characteristics of Sewage Sludge , ...
Ratio of Mixing Effects due to Wind...
Optimum Sewage Discharge Strategy f...
Distribution of Certain Chlorobenze...
이 간행물 신규자료
Flocculation Characteristics of Kao...
A Study on the Applicability of the...
Asian Dust Transport during Blockin...
Taxonomy of Asian Geranium L.(Geran...
Chemical Properties of Co(2) Compou...
저작권 정보
본 학술논문은 한국학술정보㈜ 각 학회간에 저작권 계약이 체결된 것으로 HAPPY학술이 제공하고 있습니다. 본 저작물을 불법적으로 이용시는 법적인 제재가 가해질 수 있습니다.
서비스이용약관 | 개인정보취급방침 | E-mail 수집 거부 | 제휴 및 광고문의 | FAQ
이메일 무단 수집 거부
본 웹사이트에 게시된 이메일 주소가 전자우편 수집 프로그램이나 그 밖의 기술적 장치를 이용하여 무단으로 수집되는 것을 거부하며, 이를 위반시 정보통신망법에 의해 형사처벌됨을 유념하시기 바랍니다. [게시일 2003년 4월 2일]