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西安市冬、夏两季PM2.5中碳气溶胶的污染特征分析

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张承中, 丁超, 周变红, 陶李, 刘立忠. 西安市冬、夏两季PM2.5中碳气溶胶的污染特征分析[J]. 环境工程学报, 2013, 7(4): 1477-1481.
引用本文: 张承中, 丁超, 周变红, 陶李, 刘立忠. 西安市冬、夏两季PM2.5中碳气溶胶的污染特征分析[J]. 环境工程学报, 2013, 7(4): 1477-1481.
shu
Zhang Chengzhong, Ding Chao, Zhou Bianhong, Tao Li, Liu Lizhong. Pollution characteristics of carbon aerosol in PM2.5 of Xi’an during winter and summer[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1477-1481.
Citation: Zhang Chengzhong, Ding Chao, Zhou Bianhong, Tao Li, Liu Lizhong. Pollution characteristics of carbon aerosol in PM2.5 of Xi’an during winter and summer[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1477-1481.
shu

西安市冬、夏两季PM2.5中碳气溶胶的污染特征分析

  • 1.

    西安建筑科技大学环境与市政工程学院,西安 710055

  • 2.

    宝鸡文理学院地理科学与环境工程系, 宝鸡721013

  • 基金项目:

    陕西省自然科学基金资助项目(2007D20)

    陕西省教育厅专项科研基金资助项目(06JK268)

  • 中图分类号: X513

Pollution characteristics of carbon aerosol in PM2.5 of Xi’an during winter and summer

  • 1.

    School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

  • 2.

    Department of Geographical Science and Environmental Engineering, Baoji University of Arts & Sciences, Baoji 721013, China

  • Fund Project:

  • 摘要: 为研究西安市冬、夏两季大气颗粒物PM2.5中碳组分的污染变化规律,利用TEOM系列RP1400a采样仪于2010年冬季和夏季进行采样,测定了样品中的有机碳(OC)、无机碳(EC)和水溶性有机碳(WSOA)的含量。结果显示,PM2.5中OC和EC的季节平均浓度值冬季较高,分别是夏季的2.62,1.75倍,这表明西安市冬季碳气溶胶污染严重。OC和EC日变化在不同季节均呈现双峰分布特征,这主要是由交通源的排放和不利的气象条件造成的。OC和EC在冬、夏两季都有较强的相关性(R2分别为0.823和0.543),且OC/EC平均值分别为5.36和3.58,均大于2,表明采样各时段有二次有机碳(SOC)生成。
    Abstract: PM2.5 were collected by RP1400a instrument of TEOM series during winter and summer in Xi’an to study the variations of carbon aerosol, and the levels of organic carbon (OC), elemental carbon (EC) and water soluble carbon (WSOC) in samples were determined. The results showed that seasonal average concentrations of OC and EC in PM2.5 were higher in winter, the values were about 2.62 and 1.75 times of summer, respectively, which indicated that carbonaceous aerosol pollution was more serious in winter. The daily average concentrations of OC and EC presented double peak distribution in different seasons, that was mainly caused by the traffic source emissions and adverse weather conditions. The concentrations of OC and EC showed significant correlations in winter (R2 =0.823) and summer (R2=0.543), the average ratios of OC/EC were 5.36 and 3.58, respectively, which suggested that secondary organic carbon (SOC) were generated in the atmospheric particles.
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  • 收稿日期:  2012-03-02
  • 刊出日期:  2013-04-09
张承中, 丁超, 周变红, 陶李, 刘立忠. 西安市冬、夏两季PM2.5中碳气溶胶的污染特征分析[J]. 环境工程学报, 2013, 7(4): 1477-1481.
引用本文: 张承中, 丁超, 周变红, 陶李, 刘立忠. 西安市冬、夏两季PM2.5中碳气溶胶的污染特征分析[J]. 环境工程学报, 2013, 7(4): 1477-1481.
shu
Zhang Chengzhong, Ding Chao, Zhou Bianhong, Tao Li, Liu Lizhong. Pollution characteristics of carbon aerosol in PM2.5 of Xi’an during winter and summer[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1477-1481.
Citation: Zhang Chengzhong, Ding Chao, Zhou Bianhong, Tao Li, Liu Lizhong. Pollution characteristics of carbon aerosol in PM2.5 of Xi’an during winter and summer[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1477-1481.
shu

西安市冬、夏两季PM2.5中碳气溶胶的污染特征分析

  • 1.  西安建筑科技大学环境与市政工程学院,西安 710055
  • 2.  宝鸡文理学院地理科学与环境工程系, 宝鸡721013
  • 收稿日期:  2012-03-02
基金项目:

陕西省自然科学基金资助项目(2007D20)

陕西省教育厅专项科研基金资助项目(06JK268)

摘要: 为研究西安市冬、夏两季大气颗粒物PM2.5中碳组分的污染变化规律,利用TEOM系列RP1400a采样仪于2010年冬季和夏季进行采样,测定了样品中的有机碳(OC)、无机碳(EC)和水溶性有机碳(WSOA)的含量。结果显示,PM2.5中OC和EC的季节平均浓度值冬季较高,分别是夏季的2.62,1.75倍,这表明西安市冬季碳气溶胶污染严重。OC和EC日变化在不同季节均呈现双峰分布特征,这主要是由交通源的排放和不利的气象条件造成的。OC和EC在冬、夏两季都有较强的相关性(R2分别为0.823和0.543),且OC/EC平均值分别为5.36和3.58,均大于2,表明采样各时段有二次有机碳(SOC)生成。

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