Seasonal characteristics of biomass burning contribution to Beijing aerosol

被引：1

作者：

Xiaoyan Zheng

Xiande Liu

Fenghua Zhao

Fengkui Duan

Tong Yu

Cachier H.

机构：

[1] Chinese Research Academy of Environmental Sciences,School of Resource & Safety Engineering

[2] China University of Mining & Technology (Beijing),Department of Environmental Science and Engineering

[3] Tsinghua University,Laboratory of Climate and Environmental Sciences

[4] Beijing Center of Environment Protect Monitoring,undefined

[5] CNRS-CEA,undefined

来源：

Science in China Series B: Chemistry | 2005年 / 48卷

关键词：

biomass burning; water-soluble potassium; OC; atmospheric aerosol; regression analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

110 atmospheric aerosol samples collected from November 1997 to October 1998 at two monitoring sites (Ming Tomb and Temple Heaven) in Beijing were analyzed for the concentration of organic carbon (OC) and water-soluble potassium (K+). Four biomass burning episodes, namely spring farming, summer harvesting, autumn harvesting and leaf falling were identified using the tracer of K+. Biomass burning contribution to the urban aerosol OC concentration in Beijing was estimated by regression analysis of OC and K+ concentration data. The slopes of regression analysis are similar at the two monitoring sites, presenting regional characteristics. Severe air pollution event occurred during autumn harvesting period in 1998 with substantial secondary OC formed, in which biomass burning was one of the major emission sources. Biomass burning is a prominent source of aerosol OC in Beijing and is featured by its seasonality and periodicity. It may contribute as much as 30 to 60 percent of the total OC in typical cases.

引用

页码：481 / 488

页数：7

共 33 条

[1]

Duan F. K.(2004)Identification and estimate of biomass burning contribution to the urban aerosol organic carbon concentrations in Beijing Atmospheric Environment 38 1275-1282

[2]

Liu X. D.(2001)Investigating the haze transport from 1997 biomass burning in Southeast Asia: its impact upon Singapore Atmospheric Environment 35 2723-2734

[3]

Yu T.(1995)Particulate content of savanna fire emissions Journal of Atmospheric Chemistry 22 123-148

[4]

Koe L. C. C.(1995)Measurement methods to determine compliance with ambient air quality standards for suspended particles Journal of the Air and Waste Management Association 45 320-382

[5]

Avellano A. F.(1999)Determination of organic carbon and element carbon in atmospheric aerosol samples Environment Monitoring in China (in Chinese) 15 11-13

[6]

McGregor J. L.(2004)The characteristics of carbonaceous species and their sources in PM2.5 in Beijing Atmospheric Environment 38 3443-3452

[7]

Cachier H.(1995)Aerosol emissions by tropical forest and savanna biomass burning: characteristic trace elements and fluxes Geophysical Research Letters 22 3034-3042

[8]

Liousse C.(1996)Regional atmospheric aerosol composition and sources in the eastern Transvaal, South Africa and impact of biomass burning Journal of Geophysical Research 101 23631-23650

[9]

Buat-Menard P.(2001)Emission of trace gases and aerosols from biomass burning Global Biogeochemical Cycles 15 955-966

[10]

Chow J. C.(2001)Nutrient and heavy metal concentration and distribution in corn, soybean and wheat as affected by different tillage systems in the Argentine Pampas Soil & Tillage Research 62 55-60

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