全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
科技导报  2015 

兰州远郊区春季碳气溶胶的质量浓度特征

DOI: 10.3981/j.issn.1000-7857.2015.06.003, PP. 27-30

Keywords: 可吸入颗粒物,元素碳,有机碳,二次有机碳,因子分析

Full-Text   Cite this paper   Add to My Lib

Abstract:

为探讨春季沙尘(暴)期间兰州大学半干旱气候与环境观测站(SACOL)碳气溶胶的变化特征,2012年5月17—26日于SACOL站采用石英膜收集PM10样品,利用DRI-2001A热/光碳分析仪测量元素碳(EC)和有机碳(OC)的质量浓度。结果显示,沙尘(暴)是导致OC、EC质量浓度增大的主要因素。采样期间EC、OC和总碳(TC)的平均质量浓度分别为2.71、11.26和13.97μg/m3。进一步分析显示,沙尘(暴)期间兰州城区碳气溶胶污染逐渐加重主要受本地源的影响。PM10中OC和EC的相关系数达到0.94,揭示SACOL站OC、EC的来源相对一致。OC/EC的均值为5.05,表明春季SACOL站PM10中碳气溶胶存在二次污染。二次有机碳(SOC)的质量浓度为3.37μg/m3,为OC的29.9%。结合考察周边环境,分析表明SACOL站春季碳气溶胶的主要来源是直接污染源,来自周边环境中的燃煤以及机动车尾气排放。对碳气溶胶8种组分的因子分析结果也表明,周边环境的燃煤和机动车尾气排放是春季SACOL站碳气溶胶的主要贡献源。

References

[1]  吴兑. 近十年中国灰霾天气研究综述[J]. 环境科学学报, 2012, 32(2): 257-269. Wu Dui. Hazy weather research in China in the last decade: A review[J]. Acta Scientiae Circumstantiae, 2012, 32(2): 257-269.
[2]  李嘉伟, 韩志伟, 张仁健. 2010年春季东亚地区沙尘气溶胶和PM10的 模拟研究[J]. 中国环境科学, 2011, 31(10): 1600-1608. Li Jiawei, Han Zhiwei, Zhang Renjian. Simulation study on dust aerosol PM10 in East Asia, during spring 2010[J]. China Environmental Science, 2011, 31(10): 1600-1608.
[3]  Cao J J, Lee S C, Ho K F, et al. Spatial and seasonal variations of atmospheric organic carbon and elemental carbon in Pearl River Delta Region, China[J]. Atmospheric Environment, 2004, 38(27): 4447-4456.
[4]  段凤魁, 贺克斌, 刘咸德, 等. 含碳气溶胶研究进展: 有机碳和元素碳[J]. 环境工程学报, 2007, 1(8): 1-8. Duan Fengkui, He Kebin, Liu Xiande, et al. Review of carbonaceous aerosol studies: Organic carbon and elemental carbon[J]. Chinese Journal of Environmental Engineering, 2007, 1(8): 1-8.
[5]  李刚, 石广玉, 李宏宇, 等. 冬季兰州城市大气PM2.5中碳气溶胶的污 染特征[J]. 中国科学院大学学报, 2014, 31(3): 440-443. Li Gang, Shi Guangyu, Li Hongyu, et al. Pollution characteristics of carbonaceous aerosols in PM2.5 during winter in Lanzhou[J]. Journal of University of Chinese Academy Sciences, 2014, 31(3): 440-443.
[6]  李建军, 沈振兴, 同帜, 等. 西安冬春季PM10中碳气溶胶的昼夜变化特 征[J]. 环境科学, 2009, 30(5): 1506-1513. Li Jianjun, Shen Zhenxing, Tong Zhi, et al. Day-night variation of carbonaceous aerosols in PM10 during winter and spring over Xi'an[J]. Environmental Science, 2009, 30(5): 1506-1513.
[7]  李杏茹, 王英峰, 郭雪清, 等. 2008年奥运期间北京不同粒径大气颗 粒物中元素碳和有机碳的变化特征[J]. 环境科学, 2011, 32(2): 313-318. Li Xingru, Wang Yingfeng, Guo Xueqing, et al. Size distribution and characterization of EC and OC in aerosols during the olympics of Beijing, China[J]. Environmental Science, 2011, 32(2): 313-318.
[8]  张磊, 张镭, 张丁玲, 等. 兰州远郊区黑碳气溶胶浓度特征[J]. 中国环 境科学, 2011, 31(8): 1248-1255. Zhang Lei, Zhang Lei, Zhang Dingling, et al. Property of black carbon concentration over outskirts of Lanzhou, northwest China[J]. China Environmental Science, 2011, 31(8): 1248-1255.
[9]  Turpin B J, Cary R A, Huntzicker J J. An in situ, time-resolved analyzed for aerosol organic and elemental carbon[J]. Aerosol Science and Technology, 1990, 12(1): 161-171.
[10]  Zhang R, Jing J, Tao I, et al. Chemical characterization and source apportionment of PM2.5 in Beijing seasonal perspective[J]. Atmospheric Chemistry and Physics, 2013, 13(4): 9953-10007.
[11]  Schauer J J, Kleeman M J, Cass G R, et al. Measurement of emission from air pollution sources. 2. C1 through C30 organic compounds from medium duty diesel trucks[J]. Environmental Science and Technology, 1999, 33: 1578-1587.
[12]  Chen Y J, Zhi G R, Feng Y L, et al. Measurement of emission factors for primary carbonaceous particles from residential raw-coal combustion of wood[J]. Geophysical Research Letter, 2006, 33(20): 1-4.
[13]  Schauer J J, Kleeman M J, Cass G R, et al. Measurement of emission from air pollution sources. 3. C1-C29 organic compounds from fireplace combustion of wood[J]. Environmental Science and Technology, 2001, 35(9): 1716-1728.
[14]  Chow J C, Watson J G, Lu Z, et al. Descriptive analysis of PM2.5 and PM10 at regionally representative locations during SJVAQAS/AUSPEX[J]. Atmospheric Environment, 1996, 30(12): 2079-2112.
[15]  Castro L M, Pio C A, Harrision R M, et al. Carbonaceous aerosol in urban and rural Eurpean atmospheres: Estimation of secondary organic carbon concentrations[J]. Atmospheric Environment, 1999, 33(17): 2771-2781.
[16]  Cao J J, Lee S C, Ho K F, et al. Charac research, terization of roadside fine particulate carbon and its eight fractions in Hong Kong[J]. Aerosol and Air Quality Research, 2006, 6(2): 106-122.
[17]  Schauer J J, Kleeman M J, Cass G R, et al. Measurement of emission from air pollution sources. 5. C1-C32 organic compounds from gasolinepowered motor vehicle[J]. Environmental Science and Technology, 2002, 36(6): 1169-1180.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133