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Fossil-Fuel-Derived CO2 Contribution to the Urban Atmosphere in Guangzhou, South China, Estimated by 14CO2 Observation, 2010–2011

  • P Ding (a1), C D Shen (a1) (a2), W X Yi (a1), N Wang (a3), X F Ding (a2), D P Fu (a2) and K X Liu (a2)...


From October 2010 to November 2011, the urban atmospheric CO2 concentration in Guangzhou ranged from 550 to 460 ppm, with mean monthly concentration fluctuating between 530 and 470 ppm. A lower concentration was observed in summer and autumn, while a higher concentration occurred in spring and winter. The urban atmospheric CO2 δ13C value varied between −9.00 and −13.10%, with mean monthly value fluctuating between −9.60 and −11.80%. There was no significant relationship between the CO2 concentration and δ13C value, reflecting the influence from the fossil-fuel-derived CO2 on the urban atmospheric CO2. The urban atmospheric CO2 Δ14C value fluctuated dramatically from 29.1 ± 2.5% to −85.2 ± 3. 1%, with a mean annual value of −16.4 ± 3.0%. A similar seasonal variation of Δ14C value with the concentrations was observed: the higher Δ14C values mainly appeared in summer and autumn (July to September), with a mean value of about −5.2 ± 2.9%, while lower Δ14C values occurred in spring and winter (December to April), about −27.1 ± 3.2% average. Based on the atmospheric Δ14C values, the calculated fossil-fuel-derived CO2 concentrations range between 1 and 58 ppm, with the mean annual concentration around 24 ppm. Similarly, a lower fossil-fuel-derived CO2 concentration appeared in summer and autumn (July to September) with a mean value of ∼17 ppm, while the higher fossil-fuel-derived CO2 concentration occurred in spring and winter (December to April) with an average value of ∼29 ppm. A comparison of the CO2 concentrations before and after the Guangzhou Asian Games (in November 2010) and the Spring Festival of 2011 confirmed that human activities can greatly decrease the fossil-fuel-derived CO2 emissions to the urban atmosphere in Guangzhou.


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Amundson, R, Stern, L, Baisden, T, Wang, Y. 1998. The isotopic composition of soil and soil-respired CO2 . Geoderma 82(1–3):83114.
Ding, P, Shen, CD, Wang, N, Yi, WX, Ding, XF, Fu, DP, Liu, KX, Zhou, LP. 2010. Turnover rate of soil organic matter and origin of soil 14CO2 in deep soil from a subtropical forest in Dinghushan Biosphere Reserve, South China. Radiocarbon 52(2–3): 1422–34.
Gamnitzer, U, Karstens, U, Kromer, B, Neubert, REM, Meijer, HAJ, Schroeder, H, Levin, I. 2006. Carbon monoxide: A quantitative tracer for fossil fuel CO2? Journal of Geophysical Research 111: D22302, doi: 10.1029/2005JD006966.
Graven, HD, Stephens, BB, Guilderson, TP, Campos, TL, Schimel, DS, Campbell, JE. 2009. Vertical profiles of biospheric and fossil-derived CO2 and fossil fuel CO2: CO ratios from airborne measurements of 14C, CO2 and CO above Colorado, USA. Tellus B 61:536–46.
Hsueh, DY, Krakauer, NY, Randerson, JT, Xu, XM, Trumbore, SE, Southon, JR. 2007. Regional patterns of radiocarbon and fossil fuel-derived CO2 in surface air across North America. Geophysical Research Letters 34: L02816, doi:10.1029/2006GL027032.
IPCC 2007. Summary for policymakers. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S, Qin, D, Manning, M, Chen, Z, Marquis, M, Avery, KB, Tignor, M, Mille, HL, editors]. Cambridge: Cambridge University Press.
Keeling, CD. 1976. Atmospheric carbon dioxide variations at Mauna Loa observatory, Hawaii. Tellus 28(6): 538–51.
Levin, I, Münnich, KO, Weiss, W. 1980. The effect of anthropogenic CO2 and 14C sources on the distribution of 14CO2 in the atmosphere. Radiocarbon 22(2):379–91.
Levin, I, Kromer, B, Schmidt, M, Sartorius, H. 2003. A novel approach for independent budgeting of fossil fuel CO2 over Europe by 14CO2 observations. Geophysical Research Letters 30(23):2194, doi:10.1029/2003GL018477.
Li, F, Wu, D, Wang, T, Chen, J. 2008. Haze weather problems during the 2010 Guangzhou Asian Games. Guangdong Meteorology 30(2): 1921. In Chinese with English abstract.
Liu, KX, Ding, XF, Fu, DP, Pan, Y, Wu, XH, Guo, ZY, Zhou, LP. 2007. A new compact AMS system at Peking University. Nuclear Instruments and Methods in Physics Research B 259(1):23–6.
Liu, LX, Zhou, LX, Zhang, XC, Zhang, F, Yao, B, Fang, SX. 2009. The characteristics of atmospheric CO2 concentration variation of four national background stations in China. Science in China Series D 52(11): 1857–63.
Riley, WJ, Hsueh, DY, Randerson, JT, Fischer, ML, Hatch, JG, Pataki, DE, Wang, W, Goulden, ML. 2008. Where do fossil fuel carbon dioxide emissions from California go? An analysis based on radiocarbon observations and an atmospheric transport model. Journal of Geophysical Research 113: G04002, doi: 10.1029/2007JG000625.
Santos, GM, Southon, JR, Druffel-Rodriguez, KC, Griffin, S, Mazon, M. 2004. Magnesium perchlorate as an alternative water trap in AMS graphite sample preparation at KCCAMS at the University of California, Irvine. Radiocarbon 46(1): 165–73.
Scheimel, DS. 1995. Terrestrial ecosystems and the carbon cycle. Global Change Biology 1:7791.
Stuiver, M, Polach, H. 1977. Discussion: reporting of 14C data. Radiocarbon 19(3):355–63.
Suess, HE. 1955. Radiocarbon concentration in modern wood. Science 122(3166):415–7.
Tans, PP, Dejong, AFM, Mook, WG. 1979. Natural atmospheric 14C variation and the Suess effect. Nature 280(5725):826–8.
Turnbull, JC, Miller, JB, Lehman, SJ, Tans, PP, Sparks, RJ, Southon, J. 2006. Comparison of 14CO2, CO, and SF6 as tracers for recently added fossil fuel CO2 in the atmosphere and implications for biological CO2 exchange. Geophysical Research Letters 33: L01817, doi:10.1029/2005GL024213.
Turnbull, JC, Karion, A, Fischer, ML, Faloona, I, Guilderson, T, Lehman, SJ, Miller, BR, Miller, JB, Montzka, S, Sherwood, T, Saripalli, S, Sweeney, C, Tans, PP. 2011. Assessment of fossil fuel carbon dioxide and other anthropogenic trace gas emissions from airborne measurements over Sacramento, California in spring 2009. Atmospheric Chemistry and Physics 11:705–21.
Wang, B, Lin, H. 2002. Rainy season of the Asian Pacific summer monsoon. Journal of Climate 15(4):386–98.
Wang, CK, Wang, YS, Liu, GR. 2003. Characteristics of atmospheric CO2 variations and some affecting factors in urban area of Beijing. Environmental Science 24(4): 13–7. In Chinese with English abstract.
Wang, GC, Wen, YP, Kong, QX, Ren, LX, Wang, ML. 2002. Background data and its variations for carbon dioxide above China terrain. Chinese Science Bulletin 47(10): 780–3.
Wang, ML, Li, XS. 1996. The preliminary analysis of atmospheric concentrations of CH4, CO2 and CO in GAW'S Station of China (M). In: Xing-sheng, Li, editor. Collection of Variations in Atmospheric Ozone with Its Effects on the Climatic Environment of China. Beijing: China Meteorological Press. p 3847. In Chinese with English abstract.
Wang, WW, Pataki, DE. 2010. Spatial patterns of plant isotope tracers in the Los Angeles urban region. Landscape Ecology 25(1):3552.
Wang, YS, Wang, CK, Guo, XQ, Liu, GR. 2002. Diurnal and seasonal variation of Beijing atmospheric CO2 . Chinese Science Bulletin 47(10): 1108–12.
Wen, YP, Tang, J, Shao, ZQ, Zhang, XC, Zhao, YC. 1997. A study of atmospheric CO2 concentration variations and emission from the soil surface at Mt. Waliguan. Quarterly Journal of Applied Meteorology 8(2): 129–36. In Chinese with English abstract.
World Meteorological Organization (WMO). 2007. Greenhouse Gas Bulletin: The State of Greenhouse Gases in the Atmosphere Using Global Observations through 2006. Geneva: WMO.
Xi, XT, Ding, XF, Fu, DP, Zhou, LP, Liu, KX. 2011. Regional 14C patterns and fossil fuel derived CO2 distribution study in the Beijing area using annual plants. Chinese Science Bulletin 56(16): 1721–26.
Xi, XT, Ding, XF, Fu, DP, Zhou, LP, Liu, KX. 2013. 14C level of annual plants and fossil fuel derived CO2 distribution across different regions of China. Nuclear Instruments and Methods in Physics Research B 294: 515–9.
Xu, XM, Trumbore, SE, Zheng, SH, Southon, JR, McDuffee, KE, Luttgen, M, Liu, JC. 2007. Modifying a sealed tube zinc reduction method for preparation of AMS graphite targets: reducing background and attaining high precision. Nuclear Instruments and Methods in Physics Research B 259(1):320–9.
Zhou, LX, James, WC, Thomas, JC, Conway, TJ, Mukai, H, MacClune, K, Zhang, XC, Wen, YP, Li, JL. 2006. Long-term record of atmospheric CO2 and stable isotopic ratios at Waliguan Observatory: seasonally averaged 1991–2002 source/sink signals, and a comparison of 1998–2002 record to the 11 selected sites in the Northern Hemisphere. Global Biogeochemical Cycles 20: GB2001, doi: 10.1029/2004GB002431.


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