详细信息
西南典型高原山地城市大气黑碳气溶胶污染特征及来源解析 被引量:2
Characteristics and Source Apportionment of Black Carbon in the Atmosphere of Typical Plateau City in Southwest China
文献类型:期刊文献
中文题名:西南典型高原山地城市大气黑碳气溶胶污染特征及来源解析
英文题名:Characteristics and Source Apportionment of Black Carbon in the Atmosphere of Typical Plateau City in Southwest China
作者:周瑞国 梁隆超 肖德安 董娴 陈卓 仇广乐
第一作者:周瑞国
机构:[1]潍坊市勘察测绘研究院,山东潍坊261041;[2]贵州师范大学化学与材料科学学院,贵阳550001;[3]中国科学院地球化学研究所环境地球化学国家重点实验室,贵阳550081;[4]贵州理工学院资源与环境工程学院,贵阳550003;[5]贵阳市大气细粒子和大气污染化学重点实验室,贵阳550001
第一机构:潍坊市勘察测绘研究院,山东潍坊261041
年份:2021
卷号:49
期号:4
起止页码:375-380
中文期刊名:地球与环境
外文期刊名:Earth and Environment
收录:CSTPCD;;北大核心:【北大核心2020】;CSCD:【CSCD2021_2022】;
基金:国家自然科学基金项目(21767007);贵州省科学技术基金项目(黔科合J字[2011]2089);贵州省科技计划项目(黔科合基础[2018]1111);贵州省科技计划项目(黔科合平台人才[20175726])。
语种:中文
中文关键词:黑碳;季节变化;影响因素;来源解析
外文关键词:black carbon;seasonal variation;influencing factors;source apportionment
摘要:利用大气细颗粒物采样仪器(青岛崂应2050型)和黑碳仪(Soot Scan^(TM)Model OT21),于2016年5月至2017年4月对贵阳市城区大气黑碳进行了连续采样和监测。结果表明,大气黑炭的浓度为1.17~12.77μg/m^(3),平均值为5.19±1.91μg/m^(3),季节变化特征呈现为冬季>秋季>春季≈夏季。大气黑碳气溶胶含量与大气细粒颗粒物PM2.5质量浓度及钾离子含量呈显著正相关性,相关系数分别为R^(2)=0.64(P<0.01)和R^(2)=0.31(P<0.01)。源解析结果显示,化石燃料(51.9%)、生物质燃烧(32.4%)和餐饮油烟排放(15.7%)是大气黑碳气溶胶的主要来源。后向轨迹模型HYSPLIT显示,贵阳市全年大气污染气团主要来自我国境内,污染气团的来源与贵阳市大气主导风向有关。
Atmospheric fine particle in Guiyang City was collected with Laoying Model 2050 during May 2016 to April 2017 and measured for black carbon(BC)using Aethalometer(Soot Scan^(TM)Model OT21).Results showed that concentrations of BC ranged from1.17 to 12.77μg/m^(3),with an average of 5.19±1.91μg/m^(3).Seasonal variation of BC was in the order of winter>autumn>spring≈summer.Significantly positive correlations between BC and PM2.5(R^(2)=0.64,P<0.01)as well as between potassium ion(R^(2)=0.31,P<0.01)were observed.Sources apportionment suggested BC originated from fossil fuels(51.9%),biomass burning dust(32.4%),and catering fume emissions(15.7%).Cluster analyses on back-trajectories illustrated that the impacted air mass mainly came from domestic regions,and was controlled by dominant wind directions in Guiyang.
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