摘要
以2009年5月鞍山大气成分站AE-31黑碳仪器观测数据,并结合GRIMM180观测数据,分析了该地区ρ(BC)变化特征,结果表明,以紫外光为检测光源测量的黑碳日平均浓度为4.015μg·m-3,以可见光为检测光源测量的黑碳日平均浓度为3.965μg·m-3,以红外光为检测光源测量的黑碳日平均浓度为4.051μg·m-3,PM1.0日平均浓度为30.4μg·m-3.黑碳气溶胶的各波段ρ(BC)变化趋势相同,紫外光和红外光为检测光测量的黑碳浓度较可见光的测量值高.ρ(BC)与ρ(PM1.0)有很好地相关性,ρ(BC)占ρ(PM1.0)的比例为22.6%.ρ(BC)与能见度大小呈反比,其对光的吸收是影响能见度的重要因素之一。
Black carbon（BC） aerosol and PM1.0 aerosols have been measured with an Aethalometer and GRIMM180 at Anshan atmosphere station in May,2009.The results indicated that average BC daily concentration was 4.015μg·m-3 by wavelength 370nm,3.965μg·m-3 by wavelength visible light and 4.051μg·m-3 by wavelength 880nm.The average PM1.0 daily concentration was 30.4μg·m-3.Black carbon aerosol of wavelengths varied in the same trend.The black carbon concentration measured by wavelength 370nm and 880nm was higher than other wavelengths.There was a good correlation between BC and PM1.0.BC ratio of PM1.0 accounted for 22.6%.BC was inversely proportional to visibility in size,and its light absorption was one of the important factors which affected the visibility.
出处
《环境化学》
CAS
CSCD
北大核心
2010年第6期1091-1095,共5页
Environmental Chemistry
基金
公益性行业(气象)科研专项项目(GYHY20080620)
城市气象科学研究基金(Umrf200801)资助
