Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 9 6 2009 10.5194/acpd-9-24629-2009 http://www.atmos-chem-phys-discuss.net/9/24629/2009/ http://www.atmos-chem-phys-discuss.net/9/24629/2009/acpd-9-24629-2009.html http://www.atmos-chem-phys-discuss.net/9/24629/2009/acpd-9-24629-2009.pdf 24629 24667 2009-11-18 Temporal variation of elemental carbon in Guangzhou, China, in summer 2006 R. L. Verma L. K. Sahu Y. Kondo y.kondo@atmos.rcast.u-tokyo.ac.jp N. Takegawa S. Han J. S. Jung Y. J. Kim S. Fan N. Sugimoto M. H. Shammaa Y. H. Zhang Y. Zhao Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan Advanced Environmental Monitoring Research Center, Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea Institute of Environmental Meteorology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China Atmospheric Remote Sensing Section, National Institute for Environmental Studies, Tsukuba, Japan State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Science and Engineering, Peking University, Beijing, China Air Quality Research Center, University of California, Davis, USA In situ measurements of the mass concentration of elemental carbon (EC) and mixing ratios of carbon monoxide (CO) and carbon dioxide (CO₂) were made at Guangzhou, an urban measurement site in the Pearl River Delta (PRD), China, in July 2006. The average±standard deviation (SD) concentrations of EC, CO, and CO₂ were 4.7±2.3 μg C m^−3, 798±459 ppbv and 400±13 ppmv, respectively. The trends of these species were mainly controlled by synoptic-scale changes in meteorology during the campaign. Based on back trajectories, data are analyzed separately for two different air mass types representing northerly and southerly flows. Northerly air masses, constituting about 25% of the campaign, were mainly impacted by stagnant conditions, resulting in elevated levels of pollutants. On the other hand, southerly air masses measured during most of the campaign were mostly influenced by clean marine air. The diurnal patterns of EC, CO, and CO₂ exhibited peak concentrations during the morning and evening hours coinciding with rush-hour traffic. The diurnal variations of EC and ΔEC/ΔCO closely followed the traffic pattern of heavy-duty vehicles (HDV) in Guangzhou, similar to that observed in Beijing. The level of EC in this campaign was similar to values reported during previous studies at other sites surrounding Guangzhou. The average slopes of ΔEC/ΔCO, ΔEC/ΔCO₂, and ΔCO/ΔCO₂ were 0.0054 μg C m^−3/ppbv, 0.15 μg C m^−3/ppmv, and 46.4 ppbv/ppmv, respectively, agreeing reasonably well with their respective emission ratios derived from regional emission inventories. Andreae, M. O. and Metlet, P.: Emission of trace gases and aerosols from biomass burning, Global Biochem. Cy., 15(4), 955–966, 2001. Andreae,~M O., Schmid,~O., Yang,~H., Chanda,~D., Yu,~J Z., Zeng,~L M., and Zhang,~Y H.: Optical properties and chemical composition of the atmospheric aerosol in urban Guangzhou, China, Atmos. Environ., 42, 6335–6350, 2008. Baumgardner, D., Kok, G. L., and Raga, G. B.: On the diurnal variability of particle properties related to light absorbing carbon in Mexico City, Atmos. Chem. Phys., 7, 2517–2526, 2007. Bi,~X., Sheng,~G., Peng,~P., Chen,~Y., Zhang,~Z., and Fu,~J.: Distribution of particulate- and vapor-phase n-alkanes and polycyclic aromatic hydrocarbons in urban atmosphere of Guangzhou, China, Atmos. Environ., 37, 289–298, 2003. Birch,~M E. and Cary,~R A.: Elemental carbon-based method for monitoring occupational exposures to particulate diesel exhaust, Aerosol Sci. Tech., 25, 221–241, 1996. Bond,~T C., Streets,~D G., Yarber,~K F., Nelson,~S M., Woo,~J H., and Klimont,~Z.: A~technology-based global inventory of black and organic carbon emissions from combustion, J. Geophys. Res. 109, D14203, doi:10.1029/2003JD003697, 2004. Boucher,~O. and Reddy,~M S.: Climate trade-off between black carbon and carbon dioxide emissions, Energy Policy, 36, 193–200, doi:10.1016/j.enpol.2007.08.039, 2008. Cao,~J J., Lee,~S C., Ho,~K F., Zhang,~X Y., Zou,~S C., Fung,~K., Chow,~J C., and Watson,~J G.: Characteristics of carbonaceous aerosol in Pearl River Delta Region, China during 2001 winter period, Atmos. Environ., 37, 1451–1460, 2003. Cao,~J J., Lee,~S C., Ho,~K F., Zou,~S C., Fung,~K., Lib,~Y., Watson,~J G., and Chow,~J C.: Spatial and seasonal variations of atmospheric organic carbon and elemental carbon in Pearl River Delta Region, China, Atmos. Environ., 38, 4447–4456, 2004. Cao, J. J., Lee, S. C., Chow, J. C., Watson, J. G., Ho, K. F., Zhang, R. J., Jin, Z. D., Shen, Z. X. Chen, G. C., Kang, Y. M., Zou, S. C., Zhang, L. Z., Qi, S. H., Dai, M. H., Cheng, Y., and Hu, K.: Spatial and seasonal distributions of carbonaceous aerosols over China, J. Geophys. Res., 112, D22S11, doi:10.1029/2006JD008205, 2007. Cao,~G., Zhang,~X., Gong,~S., and Zheng,~F.: Investigation on emission factors of particulate matter and gaseous pollutants from crop residue burning, J. Environ. Sci., 20, 50–55, 2007. Cheung,~H C., Wang,~T., Baumann,~K., and Guo,~H.: Influence of regional pollution outflow on the concentrations of fine particulate matter and visibility in the coastal area of southern China, Atmos. Environ., 39, 6463–6474, 2005. Chuang,~P Y., Duvall,~R M., Bae,~M S., Jefferson,~A., Schauer,~J J., Yang,~H., Yu,~J Z., and Kim,~J.: Observations of elemental carbon and absorption during ACE-Asia and implications for aerosol radiative properties and climate forcing, J. Geophys. Res., 108(D23), 8634, doi:10.1029/2002JD003254, 2003. Conant,~W C., Nenes,~A., and Seinfeld,~J H.: Black carbon radiative heating effects on cloud microphysics and implications for aerosol indirect forcing, 1, Extended Köhler theory, J. Geophys. Res., 107(D21), 4604, doi:10.1029/2002JD002094, 2002. Dhammapala,~R., Claiborn,~C., Simpson,~C., and Jimenez,~J.: Emission factors from wheat and Kentucky bluegrass stubble burning: Comparison of field and simulated burn experiments, Atmos. Environ., 41, 1512–1520, doi:10.1016/j.atmosenv.2006.10.008, 2007. Dickerson,~R R., Andreae,~M O., Campos,~T., Mayol-Bracero,~O L., Neusuess,~C., and Streets,~D G.: Analysis of black carbon and carbon monoxide observed over the Indian Ocean: Implications for emissions and photochemistry, J. Geophys. Res., 107(D19) 8017, doi:10.1029/2001JD000501, 2002. Draxler,~R R. and Rolph,~G D.: HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) Model access via NOAA ARL READY, NOAA Air Resources Laboratory, Silver Spring, MD, website (http://www.arl.noaa.gov/ready/hysplit4.html), 2003. Duan,~J., Tan,~J., Cheng,~D., Bi,~X., Deng,~W., Sheng,~G., Fu,~J., and Wong,~M H.: Sources and characteristics of carbonaceous aerosol in two largest cities in Pearl River Delta Region, China, Atmos. Environ., 41, 2895–2903, 2007. Dutkiewicz,~V A., Alvi,~S., Ghauri,~B M., Choudhary,~M I., and Husain,~L.: Black carbon aerosols in urban air in South Asia, Atmos. Environ., 43, 1737–1744, doi:10.1016/j.atmosenv.2008.12.043, 2009. Glasiusa,~M., Ketzel,~M., Wahlin,~P., Jensen,~B., Mønster,~J., Berkowicz,~R., and Palmgren,~F.: Impact of wood combustion on particle levels in a~residential area in Denmark, Atmos. Environ., 40, 7115–7124, 2006. Han,~S., Kondo,~Y., Takegawa,~N., Miyazaki,~Y., Oshima,~N., Hu,~M., Lin,~P., Deng,~Z., Zhao,~Y., and Sugimoto,~N.: Temporal variation of elemental carbon in Beijing, J. Geophys. Res., doi:10.1029/2009JD012027, in press, 2009. Hansen,~A D A., Convey,~T J., Steele,~L P., Bodhaine,~B A., Thoning,~K W., Tans,~P., and Novakov,~T.: Correlations among combustion effluent species at Barrow, Alaska: Aerosol black carbon, carbon dioxide, and methane, J. Atmos. Chem., 9, 283–299, 1989. Ho, K. F., Lee, S. C., Cao, J. J., Li, Y. S., Chow, J. C., Watson, J. G., and Fung, K.: Variability of organic and elemental carbon, water soluble organic carbon, and isotopes in Hong Kong, Atmos. Chem. Phys., 6, 4569–4576, 2006. Huang,~Y., Chameides,~W L., and Dickinson,~R E.: Direct and indirect effects of anthropogenic aerosols on regional precipitation over east Asia, J. Geophys. Res., 112, D03212, doi:10.1029/2006JD007114, 2007. Intergovernmental Panel on Climate Change (IPCC): http://www.grida.no/publications/other/ipcc_tar/?src=/climate/ipcc_tar/, 2001. Jacobson,~M Z.: A~physically-based treatment of elemental carbon optics: Implications for global direct forcing of aerosols, Geophys. Res. Lett., 27(2), 217–220, 2000. Jeong,~C H., Hopke,~P K., Kim,~E., and Lee,~D W.: The comparison between thermal-optical transmittance elemental carbon and Aethalometer black carbon measured at multiple monitoring sites, Atmos. Environ., 38, 5193–5204, 2004. Jung,~J S., Lee,~H., Kim,~Y J., Liu,~X., Zhang,~Y., Gu,~J., and Fan,~S.: Aerosol chemistry and the effect of aerosol water on visibility impairment and radiative forcing in Guangzhou during the 2006 Pearl River Delta campaign (PRIDE-PRD2006), J. Environ. Manage., 90, 3231–3244, 2009. Kim,~D. and Ramanathan,~V.: Solar radiation budget and radiative forcing due to aerosols and clouds, J. Geophys. Res., 113, D02203, doi:10.1029/2007JD008434, 2008. Kim,~Y J., Kim,~M J., Lee,~K H., and Park,~S S.: Investigation of carbon pollution episodes using semi-continuous instrument in Incheon, Korea, Atmos. Environ., 40, 4064–4075, 2006. Kondo, Y., Komazaki, Y., Miyazaki, Y., Moteki, N., Takegawa, N., Kodama, D., Deguchi, S., Nogami, M., Fukuda, M., Miyakawa, T., Morino, Y., Koike, M., Sakurai, H., and Ehara, K.: Temporal variations of elemental carbon in Tokyo, J. Geophys. Res., 111, D12205, doi:10.1029/2005JD006257, 2006. Lai,~S C., Zou,~S C., Cao,~J J., Lee,~S C., and Ho,~K F.: Characterizing ionic species in PM2.5 and PM$_10$ in four Pearl River Delta cities, South China, J. Environ. Sci., 19, 939–947, ISSN:1001-0742, CN 11-2629/X, 2007. Latha,~K M. and Badarinath,~K V S.: Correlation between black carbon aerosols, carbon monoxide and tropospheric ozone over a~tropical urban site, Atmos. Res., 71, 265–274, 2004. Liu,~X., Cheng,~Y., Zhang,~Y., Jung,~J., Sugimoto,~N., Chang,~S Y., Kim,~Y J., Fan,~S., and Zeng,~L.: Influences of relative humidity and particles chemical composition on aerosol scattering properties during the 2006 PRD campaign, Atmos. Environ., 42, 1525–1536, 2008. Menon~S., Hansen,~J., Nazarenko,~L., and Luo,~Y.: Climate Effects of Black Carbon Aerosols in China and India, Science, 297, 2250–2253 doi:10.1126/science.1075159, 2002. Nenes,~A., Conant,~W C., and Seinfeld,~J H.: Black carbon radiative heating effects on cloud microphysics and implications for the aerosol indirect effect, 2, Cloud microphysics, J. Geophys. Res., 107(D21), 4605, doi:10.1029/2002JD002101, 2002. Park,~S S., Bae,~M S., Schauer,~J J., Ryu,~S S., Kim,~Y J., Cho,~S Y., and Kim,~S J.: Evaluation of the TMO and TOT methods for OC and EC measurement and their characteristics in $\rmPM_2.5$ at an urban site of Korea during ACE-Asia, Atmos. Environ., 39, 5101–5112, 2005. Park,~S S., Kim,~Y J., and Kang,~C H.: Polycyclic aromatic hydrocarbons in bulk $\rmPM_2.5$ and size-segregated aerosol particle samples measured in an urban environment, Environ. Monit. Assess., 128, 231–240, doi:10.1007/s10661-006-9308-4, 2007. Polidori,~A., Turpin,~B J., Lim,~H J., Cabada,~J C., Subramanian,~R., Pandis,~S N., Robinson,~A L.: Local and regional secondary organic aerosol: Insights from a~year of semi-continuous carbon measurements at Pittsburg, Aerosol Sci. Tech., 40, 861–872, 2006. Ramanathan,~V. and Carmichael,~G.: Global and regional climate changes due to black carbon, Nat. Geosci., 1, 221–227, doi:10.1038/ngeo156, 2008. Sahu,~L K., Kondo,~Y., Miyazaki,~Y., Kuwata,~M., Koike,~M., Takegawa,~N., Tanimoto,~H., Matsueda,~H., Yoon,~S C., and Kim,~Y J.: Anthropogenic aerosols observed in Asian continental outflow at Jeju Island, Korea, in spring 2005, J. Geophys. Res., 114, D03301, doi:10.1029/2008JD010306, 2009. Sanchez-Ccoyllo,~O R., Ynoue,~R Y., Martins,~L D., Astolfo,~R., Miranda,~R M., Freitas,~E D., Borges,~A S., Fornaro,~A., Freitas,~H., Moreira,~A., and Andrade,~M F.: Vehicular particulate matter emissions in road tunnels in Sao Paulo, Brazil, Environ. Monit. Assess., 149, 241–249, doi:10.1007/s10661-008-0198-5, 2009. Shao,~M., Tang,~X., Zhang,~Y., and Li,~W.: City clusters in China: Air and surface water pollution, Front. Ecol. Environ., 4(7), 353–361, 2006. Shao,~M. and Zhang,~Y.: Current Air quality problem and control strategies for Vehicular emissions in China, website (http://www.walshcarlines.com/china/china.airquality.minshao.pdf), 2001. Streets, D. G., Bond, T. C., Carmichael, G. R., Fernandes, S. D., Fu, Q., He, D., Klimont, Z., Nelson, S. M., Tsai, N. Y., Wang, M. Q., Woo, J. H., and Yarber, K. F.: An inventory of gaseous and primary aerosol emissions in Asia in the year 2000, J. Geophys. Res., 108(D21), 8809, doi:10.1029/2002JD003093, 2003. Sugimoto, N., Nishizawa, T. ,Liu, X., Matsui, I., Shimizu, A., Zhang, Y., Kim, Y. J., Li, R., and Liu, J.: Continuous observations of aerosol profiles with a two-wavelength Mie-cattering lidar in Guangzhou in PRD2006, J. Appl. Meteorol. Clim., 48, 1822–1830, doi:10.1175/2009JAMC2089.1, 2009. Takegawa, N., Kondo, Y., Koike, M., Chen, G., Machida, T., Watai, T., Blake, D. R., Streets, D. G., Woo, J. H., Carmichael, G. R., Kita, K., Miyazaki, Y., Shirai, T., Liley, J. B., and Ogawa, T.: Removal of NO_x and NO_y in Asian outflow plumes: Aircraft measurements over the western Pacific in January 2002, J. Geophys. Res., 109, D23S04, doi:10.1029/2004JD004866, 2004. Takegawa,~N., Miyakawa,~T., Kondo,~Y., Jimenez,~J L., Zhang,~Q., Worsnop,~D R., and Fukuda,~M.: Seasonal and diurnal variations of submicron organic aerosol in Tokyo observed using the aerodyne aerosol mass spectrometer, J. Geophys. Res., 111, D11206, doi:10.1029/2005JD006515, 2006. Takegawa, N., Miyakawa, T., Kuwata, M., Kondo, Y., Zhao, Y., Han, S., Kita, K., Miyazaki, Y., Deng, Z., Xiao, R., Hu, M., Van Pinxteren, D., Herrmann, H., Hofzumahaus, A., Holland, F., Wahner, A., Blake, D. R., Sugimoto, N., and Zhu, T.: Variability of submicron aerosol observed at a~rural site in Beijing in the summer of 2006, J. Geophys. Res., 114, D00G05, doi:10.1029/2008JD010857, 2009. Tan,~J H., Bi,~X H., Duan,~J C., Rahn,~K A., Sheng,~G Y., and Fu,~J M.: Seasonal variation of particulate polycyclic aromatic hydrocarbons associated with $\rmPM_10$ in Guangzhou, China, Atmos. Res., 80, 250–262, 2006. Westerdahl,~D., Wang,~X., Pan,~X., and Zhang,~K M.: Characterization of on-road vehicle emission factors and microenvironmental air quality in Beijing, China, Atmos. Environ., 42, 697–705, 2009. Xie, S, Zhang,~Y., Qi,~L., and Tang,~X.: Spatial distribution of traffic-related pollutant concentrations in street canyons, Atmos. Environ., 37, 3213–3224, 2003. Yeung,~M C., Lee,~S C., Lun,~B H., and Tanner,~P A.: Summer rain events in south-east Asia: Spatial and temporal variations, Atmos. Res., 86, 241–248, 2007. Zhou,~K., Ye,~Y H., Liu,~Q., Liu,~A J., and Peng,~H L.: Evaluation of ambient air quality in Guangzhou, China, J. Environ. Sci., 19, 432–437, 2007.