부산시 대기중 질산염의 농도특성에 관한 연구

• 영문명: A Study on the Concentrations of Nitrate in Pusan
• 발행기관: 한국환경보건학회
• 저자명: 김춘선 최금찬 고경숙 임경택
• 간행물 정보: 『한국환경보건학회지』제24권 제2호, 32~37쪽, 전체 6쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 1998.06.30

영문 초록

The seasonal and diurnal changes of concentration of various gaseous ($HNO_3, NH_3, NO_2, NO, O_3$) and particulate ($NO_3^-, SO_4^{2-}, NH_4^+$) species were monitored to examine the charateristics of total nitrate ($HNO_3/NO_3^-$) concentration in Pusan from October 1996 to August 1997. Also temperature and relative humidity in ambient air were measured. The concentrations of gaseous nitrate (HNO$_3$:4.087-0.116 ppb) were higher during summer time and daytime compared with those during winter time and night time. But the concentrations of particulate nitrate (NO$_3^-$) were 11.21~1.089 $\mu g/m^3$ and higher during winter time and night time. These phenomena may be attributable to the photochemical reactions. Conversion rates of NO$_x$ to gaseous nitrate (Fn : 11.87~0.67%) were greater in summer time and day time and conversion rates of NO$_x$ to particulate nitrate (Fn

키워드

Gaseous nitrate Particulate nitrate Photochemical reactions The conversion rates of NO to nitrate