典型文献
Long-term declining in carbon monoxide(CO)at a rural site of Beijing during 2006-2018 implies the improved combustion efficiency and effective emission control
文献摘要：
Carbon monoxide(CO)is primarily the result of incomplete combustion,which has impor-tant impacts on the atmospheric chemical cycle and climate.Improved quantitative char-acterization of long-term CO trends is important for both atmospheric modeling and the design and implementation of policies to efficiently control multiple pollutants.Due to the limitations of high time-resolution and high-quality long-term observational data,studies on long-term trends in the CO concentration in China are quite limited.In this study,the observational data of the concentration of CO in a rural site of Beijing during 2006-2018 was used to analyze the long-term trend in CO concentration in Beijing.The Theil-Sen method and the generalized additive model(GAM)-based method,were used to conduct the trend estimation analysis.We found that the concentration of CO at the Shangdianzi site showed a significant downward trend during 2006-2018,with a decline rate of 22.8±5.1 ppbV per year.The declining trend in CO also showed phasic characteristics,with a fast decreasing rate during the period of 2006-2008,stable variations during the period of 2009-2013 and a continuous downward trend after 2013.The declining trend in the CO concentration in the south to west(S-W)sectors where the polluted air masses come from is more rapid than that in the sectors where the clean air masses come from.The declining trend in the CO concentration implies the improved combustion efficiency and the successful air pollution control policies in Beijing and the surrounding area.
文献关键词：
中图分类号：
作者姓名：
Yingruo Li;Zhiqiang Ma;Tingting Han;Weijun Quan;Junxia Wang;Huaigang Zhou;Di He;Fan Dong
作者机构：
Institute of Urban Meteorology,China Meteorological Administration,Beijing 100089,China;Key Laboratory of Atmospheric Chemistry,China Meteorological Administration,Beijing 100081,China;Environmental Meteorology Forecast Center of Beijing-Tianjin-Hebei,China Meteorological Administration,Beijing 100089,China;College of Environmental Science and Engineering,Peking University,Beijing 100871,China
文献出处：
引用格式：
[1]Yingruo Li;Zhiqiang Ma;Tingting Han;Weijun Quan;Junxia Wang;Huaigang Zhou;Di He;Fan Dong-.Long-term declining in carbon monoxide(CO)at a rural site of Beijing during 2006-2018 implies the improved combustion efficiency and effective emission control)[J].环境科学学报（英文版）,2022(05):432-442
A类：
Shangdianzi,ppbV
B类：
Long,term,declining,carbon,monoxide,rural,site,Beijing,during,implies,improved,combustion,efficiency,effective,emission,control,Carbon,primarily,result,incomplete,which,impacts,atmospheric,chemical,cycle,climate,Improved,quantitative,acterization,long,trends,important,both,modeling,design,implementation,policies,efficiently,multiple,pollutants,Due,limitations,high,resolution,quality,observational,data,studies,concentration,China,quite,limited,In,this,study,was,used,analyze,Theil,Sen,method,generalized,additive,GAM,were,conduct,estimation,analysis,We,found,that,showed,significant,downward,decline,rate,year,also,phasic,characteristics,fast,decreasing,period,stable,variations,continuous,after,south,west,sectors,where,polluted,air,masses,come,from,more,rapid,than,clean,successful,pollution,surrounding,area
AB值：
0.476188
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