承德市大气污染物特征及潜在来源分析  

Variation Characteristics and Potential Source Analysis of Atmospheric Pollutants in Typical Cities of Chengde City

作　　者：孙德尧 张科 吴才武[1] 杨越[1] 孙丽[3] 李亚男 孙维悦 武智勇[1] SUN Deyao;ZHANG Ke;WU Caiwu;YANG Yue;SUN Li;LI Yanan;SUN Weiyue;WU Zhiyong(Department of Resources and Environmental Science, Hebei Normal University for Nationalities, Chengde Hebei 067000, China;Tianjin Tianrong Environmental Technology Development Company, Tianjin 300380, China;Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions, Harbin Normal University, Harbin 150025, China;College of Life Science and Technology, Harbin Normal University, Harbin 150025, China)

机构地区：[1]河北民族师范学院资源与环境科学学院,河北承德067000 [2]天津天融环境科技发展有限公司,天津300380 [3]哈尔滨师范大学寒区地理环境监测与空间信息服务黑龙江省重点实验室,哈尔滨150025 [4]哈尔滨师范大学生命科学与技术学院,哈尔滨150025

出　　处：《西南师范大学学报（自然科学版）》2021年第12期53-62,共10页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(41401589);中央高校基本科研业务费专项资金(2017-KYYWF-0139);河北省高等学校科学技术研究项目(QN2015320).

摘　　要：承德市是京津冀地区北部的重要生态屏障,为了解承德市大气环境质量特征及污染物潜在来源,选取承德市2016-2019年大气污染物的常规6项数据(SO2,NO2,CO,O3,PM2.5和PM10),分析了承德市大气污染物质量浓度的变化特征,同时利用Pearsons相关分析以及HYSPLIT模型对污染物来源进行解析.结果表明:近4年,承德市环境空气质量明显提高,总体优良达标率为87.29%;首要污染物主要是PM10,O3,PM2.5和NO2,其中PM10是全年空气质量的主要影响因素;机动车尾气、工业生产、扬尘和生物质燃烧是污染物的主要来源.外源污染物输送路径主要包括西北气团、东南气团及北方气团,其中东南气团污染物质量浓度最高.西北气团质量浓度次之,北方气团质量浓度相对较低.从潜在源区来看,O3的高值区范围最大,主要分布于东南以石家庄为中心的华北平原地区;NO2,CO,PM10和PM2.5高值区范围次之,主要分布于内蒙古中西部地区及华北平原地区;SO2的高值区范围最小,分布比较分散.总体来说西北及东南传输通道是承德市大气外源输入的主要源区.In order to study the variation characteristics of air pollutants in the interrupted areas of farming pastoral ecotone in China,six routine data(SO2,NO2,CO,O3,PM2.5 and PM10)of air pollutants in Chengde City from 2016 to 2019 were selected.Based on the monitoring data of air pollutants,we investigated the concentration variation of air pollutants in Chengde City from 2016-2019,and the source of pollutants was analyzed by using correlation analysis,HYSPLIT,PSCF and CWT model.The results show that Chengde's air quantity rise to some extent in past four years,but the days with excellent or good quality is still in the majority,with an eligibility rate of 87.29%.The main pollutants are mainly PM10,O3,PM2.5,NO2,PM10 is a long-term influencing factor of air quality.CO and NO2 may come from motor vehicle exhaust and industrial students.PM2.5 comes from motor vehicle exhaust,dust,and biomass combustion,CO and SO2 may be the products of fossil fuel combustion and industrial waste gas.Motor vehicle exhaust,industrial production,dust,and biomass combustion are the main sources of pollutants.The transport routes of exogenous pollutants mainly include northwest air mass,southeast air mass and northern air mass,and the concentration of various pollutants in southeast air mass is relatively high.Northwest air mass concentration is second,northern air mass is relatively low and relatively clean.O3 has the largest potential source high-value area,and the high-contribution area is mainly distributed in the North China Plain area with Shijiazhuang as the center in the southeast.NO2,CO,PM10,and PM2.5 high-value areas are next,and the central and western regions of Inner Mongolia and the North China Plain in the southeast are its main contributing areas,and the SO2 high-value areas are the smallest.The distribution of high value contribution areas is more scattered.Generally speaking,the northwest and southeast transmission channel is the main source area for the atmospheric external input of Chengde City.

关 键 词：承德市 大气污染 轨迹分析 潜在源区 

分 类 号：P421[天文地球—大气科学及气象学] X51[环境科学与工程—环境工程]