- Volume 9 Issue 5
Visibility reduction is a barometer of air pollution which people can notice easily. First of all we need to measure quantified visibility continuously in order to examine visibility reduction. Prevailing visibility is not practical to measure visibility depending on observer's expertness. Scattering visibility using Forward Scattering Meter(Belfort Visibility Sensor 6230) has been measured at Kwangan-Dong in Pusan and analysed since July 1998. According to the analysis the correlation coefficient(R) between prevailing visibility and scattering visibility was 0.7235. The visibility appeared that each frequency of poor visibility(under 6km) and good visibility(over 25km) was 10.6%, 9.7% on summertime in Pusan and the visibility range from 10km to 20km ranked high frequency as a half of whole ranges. The order of correlation coefficients between visibility an air pollutants are ranking CO. PM10 and NO2 that values are 0.5878, 0.5369,l 0.5284 respectively. In meteorolgical factor the case of poor visibility presented more weakly wind speed and higher relative humidity than the case of good visibility. The correlation coefficient between calculated visibility of multiple linear regression model and observed visibility was 0.7215. But the trend of calculated and observed visibility variation was similar with the exception of several good visibility cases.
- 한국대기보전학회지 v.9 no.1 서울의 대기오염과 시정감소 최정숙;정용승
- Meteor. Mag. v.97 A recent change in visibility characteristics at Finningley Corfield,G.A.;W.G.Newton
- 한국 대기보전학회지 v.4 no.2 서울대기 에어로졸의 농도와 광소산에 관한 연구 김필수;오미석;김희운
- 한국과학기술연구원 연구보고서 환경오염 방지 기술 개발 - 서울 지방의 스모그현상 연구 (Ⅲ) 문길주;심상규;백남준;김성주