Observation of black carbon aerosol in Beijing, 2003

2007年第1卷第3期

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《环境科学与工程前沿（英文）》 >> 2007年第1卷第3期 doi: 10.1007/s11783-007-0059-4

Observation of black carbon aerosol in Beijing, 2003

1.Beijing Weather Modification Office, Beijing 100089, China; 2.Department of Atmospheric Sciences, Peking University, Beijing 100871, China

发布日期： 2007-09-05

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摘要

The objective of this study was to determine the black carbon concentration in Beijing in 2003. The aerosol properties were measured using an Aethalometer and a tapered element oscillating microbalance (TEOM) on the roof of the Physics Building of Peking University (39.99º N, 116.31º E) from July to August 2003 and from November 2003 to January 2004. The average black carbon (BC) concentrations in the summer and winter were 8.80 and 11.4 μg/m, respectively. During winter, two different cyclone cut offs were installed at the inlet of an aethalometer. The BC mass concentration in TSP, PM, and PM were obtained. The results indicated that in winter aerosol, 90% of BC exited in PM and 82.6% of BC exited in PM. The BC in PM accounted for 5.11% of the PM mass.

关键词

carbon concentration ; Beijing ; tapered element ; August ; aethalometer