2013-2014年北京市CO时空分布特征研究  

Spatial and Temporal Distribution of CO During 2013-2014 in Beijing

作　　者：程念亮[1,2] 陈添[3] 张大伟[1] 李云婷[1] 董欣[1] 王欣[1] 郇宁[1] 陈晨[1] 孟凡[4] 

机构地区：[1]北京市环境保护监测中心,北京100048 [2]北京师范大学水科学研究院,北京100875 [3]北京市环境保护局,北京100048 [4]中国环境科学研究院环境基准与风险评估国家重点实验室,北京100012

出　　处：《环境科学与技术》2016年第3期150-155,共6页Environmental Science & Technology

基　　金：北京市科技计划课题(Z131100006113009);环保公益性行业科研专项(201409005);国家科技支撑计划课题(2014BAC23B03);北京市空气质量达标规划课题(Z131100005613046)

摘　　要：根据2013-2014年北京市CO监测数据,系统分析了CO时空分布特征。结果表明:2014年CO年均浓度为1.29 mg/m3,2013年年均浓度为1.47 mg/m^3;CO浓度由高到低的季节依次是冬季、秋季、春季和夏季;日变化呈现双峰型分布;空间分布上北部及西部山区CO浓度明显低于中心城区及南部地区;CO浓度与NO_2、NO、NO_x、PM_(2.5)、PM_(10)、SO_2浓度呈正相关,与O_3呈负相关,且在2014年10月6-12日一次重污染过程中北京CO存在明显的区域输送。The spatial,temporal distribution and cause analysis of CO during 2013-2014 were analyzed based on the fine particulate matter monitoring data that Beijing Municipal Environmental Monitoring Center released. Analysis results showed that the city＇s annual average CO concentration was 1.29 mg/m-3 in 2014 compared to that of 1.47 mg/m-3 in 2013. Seasonal variations concentrations of CO were as winter autumn spring summer;and diurnal variation of CO showed bimodal distribution. Annual average concentration of CO was lower in northern and western area while higher in urban area and southern area. CO showed a negative correlation with NO2,NO,NOx,PM（2.5）,PM（10）,SO2 while negatively related to O3 and there exited obviously CO regional transportation during a heavy air pollution process in October 6-12 th, 2014.

关 键 词：CO 时空分布 北京 2013-2014 

分 类 号：X511[环境科学与工程—环境工程]