贵阳市大气黑碳污染特征  

Pollution characteristics of atmospheric black carbon in Guiyang City,Southwest China

作　　者：仇广乐[1] 刘娜[1] 冯新斌[1] LANDIS Matthew 商立海[1] 付学吾[1] 

机构地区：[1]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550002 [2]US EPA, Office of Research and Development,Research Triangle Park, NC 27709, USA

出　　处：《生态学杂志》2011年第5期1018-1022,共5页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(40773067)资助

摘　　要：利用连续颗粒物采样仪（URG Model 2000-01 J）和黑碳仪（Aethalometer）对贵阳市城区2008年9—11月大气黑碳浓度进行了连续观测,结果表明,贵阳市城区秋冬季大气24h黑碳浓度变化范围为1.6~12μg.m-3,平均值为4.1μg.m-3;12 h黑碳浓度观测值主要分布在2~5μg.m-3,白昼黑碳浓度变化范围介于1.9~9.2μg.m-3,平均值3.9μg.m-3,夜间黑碳浓度变化范围0.48~15μg.m-3,平均值4.3μg.m-3;黑碳浓度与大气PM2.5浓度变化一致,呈正相关关系（r=0.84,P〈0.0001,n=178）,大气黑碳浓度的变化趋势还明显受相对湿度、温度和风速的影响。By using URG Model 2000-01J and Aethalometer,the atmospheric black carbon concentration in Guiyang City was continuously detected from September to November,2008.The 24 h atmospheric black carbon concentration during the detection period was 1.6-12 μg·m-3,with a mean value of 4.1 μg·m-3.The 12 h atmospheric black carbon concentration was mainly in the range of 2-5 μg·m-3,its daytime variation range was 1.9-9.2 μg·m-3,with a mean value of 3.9 μg·m-3,and its nighttime variation range was 0.48-15 μg·m-3,with a mean value of 4.3 μg·m-3.The atmospheric black carbon concentration had the same variation trend as atmospheric PM2.5 concentration,and there existed a positive correlation（r=0.84,P0.0001,n=178） between them.The variation trend of the atmospheric black carbon concentration was also affected by the relative humidity,temperature,and wind speed.

关 键 词：黑碳 PM2.5 气象参数 污染特征 

分 类 号：X513[环境科学与工程—环境工程]