• 关键词：黑碳气溶胶  PM₁₀  黑碳仪

• 基金项目：国家重点基础研究发展规划(G1999045700)

• 娄淑娟
• 北京大学物理学院大气科学系, 北京 100871

• 毛节泰
• 1. 北京大学物理学院大气科学系, 北京 100871; 2. 北京大学暴雨与灾害实验室, 北京 100871

• 王美华
• 北京大学物理学院大气科学系, 北京 100871

• 摘要：2003年7月、8月以及11月至2004年1月,在北京大学物理楼顶(北纬39.99°,东经116.31°)使用两台黑碳仪(Aethalometer)和一台TEOM1400a(Tapered Element Oscillating Microbalance)来观测气溶胶.得到夏季黑碳的平均浓度为8.800μg·m^-3,冬季为11.400μg·m^-3.在冬季的观测中,在一台黑碳仪的进气口加上不同的切割头,分别得到了全部气溶胶(TSP)、PM₁₀以及PM_2.5中的黑碳质量浓度.结果表明,北京冬季的气溶胶中,90%的黑碳存在于PM₁₀中,826%的黑碳存在于PM_2.5中.比较PM₁₀的浓度和PM₁₀中黑碳的浓度可以看出,PM₁₀中黑碳质量平均占511%.

• Abstract：The aerosol properties were measured with an aethalometer and a TEOM1400a (Tapered Element Oscillating Microbalance) at the roof of physics building of Perking University (39.99°N,116.31°E) from July to Aug. 2003 and from Nov. 2003 through Jan. 2004.The average BCmass concentrations in summer and winter were 8.80 μg·m^-3 and 11.4 μg·m^-3,respectively. During winter two different incision implement of cyclone were installed at the inlet of an aethalometer. BCmass concentration in TSP、PM₁₀ and PM_2.5 were obtained. The results indicated that 90% of BCexisted in PM₁₀ and 82.6% of BCexisted in PM_2.5 in the winter aerosol. BCin PM₁₀ accounted for 5.11% of the PM₁₀ mass.

• Key words：Black carbon aerosol  PM₁₀  aethalometer

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