CAJ | 학술논문

基于2008年及2009年分4个季节对北京市3种类型道路(开阔型、交叉路口型和峡谷型)空气中的NO_x的现场监测结果,分析了3种类型道路空气中NO_x的污染现状和时空变化规律及影响因素.实验结果表明,昼间北京市各类型街道空气中NO_x浓度呈早晚浓度高、中午浓度低的变化规律,NO_x浓度随季节和车流量变化较明显.交通道路空气中NO占NO_x的分担率高,且有较好的相关性,而NO_2分担率较低,与NO_x相关性较差.
기우2008년급2009년분4개계절대북경시3충류형도로(개활형、교차로구형화협곡형)공기중적NO_x적현장감측결과,분석료3충류형도로공기중NO_x적오염현상화시공변화규률급영향인소.실험결과표명,주간북경시각류형가도공기중NO_x농도정조만농도고、중오농도저적변화규률,NO_x농도수계절화차류량변화교명현.교통도로공기중NO점NO_x적분담솔고,차유교호적상관성,이NO_2분담솔교저,여NO_x상관성교차.
Based on field monitoring results of NO_x concentrations on three types of roads(open road,crossroad,street canyon) in Beijing in four seasons of 2008 and 2009,NO_x pollution status,temporal and special variation and the affecting factors were analyzed.The experimental results showed that NO_x concentrations exist two peaks in the morning and evening.NO_x concentrations are significantly affected by the traffic flow and the different seasons.NO concentration accounts for the high rate of NO_x,and there is good correlation between NO and NO_x,while it is contrary between NO_2 and NO_x.