Volume 10 Issue 2
Jan.  2021
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M. C. G. Ooi, A. Chan, M. J. Ashfold, M. Y. Oozeer, K. I. Morris, S. S. K. Kong. The role of land use on the local climate and air quality during calm inter-monsoon in a tropical city[J]. Geoscience Frontiers, 2019, 10(2): 405-415. doi: 10.1016/j.gsf.2018.04.005
Citation: M. C. G. Ooi, A. Chan, M. J. Ashfold, M. Y. Oozeer, K. I. Morris, S. S. K. Kong. The role of land use on the local climate and air quality during calm inter-monsoon in a tropical city[J]. Geoscience Frontiers, 2019, 10(2): 405-415. doi: 10.1016/j.gsf.2018.04.005

The role of land use on the local climate and air quality during calm inter-monsoon in a tropical city

doi: 10.1016/j.gsf.2018.04.005
  • Received Date: 2017-04-06
  • Rev Recd Date: 2017-12-12
  • Publish Date: 2021-01-07
  • The modification of land use is known to be a major climate change driver to the local warming and air quality in cities. Despite the reduction of NOx over the years, the Selangor state has captured a higher level of O3 in year 2011. The measurement result has shown that the surge in O3 level was attributed to the reduction of NOx/NMHC ratio. This paper hence attempted to identify the role of land use change from 1999 to 2011 on the ground ozone air quality in the tropical urban conurbation, Greater Kuala Lumpur (GKL), Selangor, Malaysia. With the state-of-the-art chemical weather prediction tool, WRFChem, the external synoptic factors and emission inventory were controlled when comparing the chronological land use changes. The results showed that the urban-induced temperature and wind bias in the tropical region has induced stronger wind to disperse the NOx and carries the TVOC from the suburban to the downwind urban region. The reduction of NOx/TVOC has gradually shifted towards the optimum O3 formation regime in 2011. The formation of highly concentrated ozone becomes more sensitive to the increment of TVOC as the NOx level reduces in the urban. This highlights the essential involvement of TVOC in the ozone formation in lieu of the NOx reduction in the tropical city, a region with growing emitter of reactive biogenic ozone precursors.
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  • [1]
    Ahamad, F., Latif, M.T., Tang, R., Juneng, L., Dominick, D., Juahir, H., 2014. Variation of surface ozone exceedance around Klang Valley, Malaysia. Atmospheric Research 139, 116-127. https://doi.org/10.1016/j.atmosres.2014.01.003.
    [2]
    Ahmadov, R., McKeen, S.A., Robinson, A.L., Bahreini, R., Middlebrook, A.M., deGouw, J.A., Meagher, J., Hsie, E.-Y., Edgerton, E., Shaw, S., Trainer, M., 2012.A volatility basis set model for summertime secondary organic aerosols over the eastern United States in 2006. Journal of Geophysical Research 117, 1-19.https://doi.org/10.1029/2011JD016831.
    [3]
    Akbari, H., Bell, R., Brazel, T., Cole, D., Estes, M., Heisler, G., Hitchcock, D., Lewis, M., McPherson, G., Oke, T., Parker, D., Perrin, A., Rosenthal, J., Sailor, D., Samenow, J., Taha, H., Voogt, J., Winner, D., Wolf, K., Zalph, B., 2008. Urban heat island basics.In:Hogan, K., Rosenberg, J., Denny, A. (Eds.), Reducing Urban Heat Islands:Compendium of Strategies. United States Environmental Protection Agency, U.S., pp. 1-22
    [4]
    Akbari, H., Davis, S., Dorsano, S., Huang, J., Winnett, S., 1992. Cooling Our Communities:a Guidebook on Tree Planting and Light Colored Surfacing. U.S.Environmental Protection Agency, Office of Policy Analysis, Climate Change Division, Berkeley.
    [5]
    Athanasopoulou, E., Vogel, H., Vogel, B., Tsimpidi, A.P., Pandis, S.N., Knote, C., Fountoukis, C., 2013. Modeling the meteorological and chemical effects of secondary organic aerosols during an EUCAARI campaign. Atmospheric Chemistry and Physics 13, 625-645. https://doi.org/10.5194/acp-13-625-2013.
    [6]
    Banan, N., Latif, M.T., Juneng, L., Ahamad, F., 2013. Characteristics of surface ozone concentrations at stations with different backgrounds in Malaysia Peninsula.Aerosol Air Quality Research 13, 1090-1106. https://doi.org/10.4209/aaqr.2012.09.0259.
    [7]
    Bell, M.L., Mcdermott, A., Zeger, S.L., Samet, J.M., Dominici, F., 2004. Ozone and shortterm mortality in 95 US urban communities, 1987-2000. Journal of the American Medical Association 292, 2372-2378. https://doi.org/10.1001/jama.292.19.2372.
    [8]
    Bhatt, B.C., Sobolowski, S., Higuchi, A., 2016. Simulation of diurnal rainfall variability over the maritime continent with a high-resolution regional climate model.Journal of Meteorological Society of Japan 94A, 89-103. https://doi.org/10.2151/jmsj.2015-052.
    [9]
    Chen, F., Zhang, Y., 2009. On the coupling strength between the land surface and the atmosphere:from viewpoint of surface exchange coefficients. Geophysical Research Letters 36, 1-5. https://doi.org/10.1029/2009GL037980.
    [10]
    Civerolo, K., Hogrefe, C., Lynn, B., Rosenthal, J., Ku, J.-Y., Solecki, W., Cox, J., Small, C., Rosenzweig, C., Goldberg, R., Knowlton, K., Kinney, P., 2007. Estimating the effects of increased urbanization on surface meteorology and ozone concentrations in the New York City metropolitan region. Atmospheric Environment 41, 1803-1818. https://doi.org/10.1016/j.atmosenv.2006.10.076.
    [11]
    Civerolo, K.L., Sistla, G., Rao, S.T., Nowak, D.J., 2000. The effects of land use in meteorological modeling:implications for assessment of future air quality scenarios. Atmospheric Environment 34, 1615-1621.
    [12]
    Clappa, L.J., Jenkin, M.E., 2001. Analysis of the relationship between ambient levels of O3, NO2 and NO as a function of NOx in the UK. Atmospheric Environment 35, 6391-6405.
    [13]
    Department of Environment, 2013. New Malaysia Ambient Air Quality Standard.Petaling Jaya.
    [14]
    Department of Statistics, 2011. Population distribution by local authority areas and mukims, 2010:tables of local authority areas in Selangor. Department of Statistic Malaysia:Population and Housing Census of Malaysia, Putrajaya, pp. 181-201.
    [15]
    Dee, D.P., Uppala, S.M., Simmons, A.J., Berrisford, P., Poli, P., Kobayashi, S., Andrae, U., Balmaseda, M.A., Balsamo, G., Bauer, P., Beschtold, P., Beljaars, A.C.M., van deBerg, L., Bidlot, J., Bormann, N., Delsol, C., Dragani, R., Fuentes, M., Geer, A.J., Haimberger, L., Healy, S.B., Hersbach, H., Hólm, E.V., Isaksen, L., Kållberg, P., Köhler, M., Matricardi, M., Mcnally, A.P., Monge-Sanz, B.M., Morcrette, J.J., Park, B.K., Peubey, C., deRosnay, P., Tavolato, C., Thépaut, J.N., Vitart, F., 2011. The ERA-Interim reanalysis:configuration and performance of the data assimilation system. Quarterly Journal of the Royal Meteorological Society 137, 553-597.
    [16]
    Dimoudi, A., Nikolopoulou, M., 2003. Vegetation in the urban environment:microclimatic analysis and benefits. Energy and Buildings 35, 69-76.
    [17]
    Duenas, C., Fernández, M.C., Canete, S., Carretero, J., Liger, E., 2002. Assessment of ozone variations and meteorological effects in an urban area in the Mediterranean coast. The Science of the Total Environment 299, 97-113. https://doi.org/10.1016/S0048-9697(02)00251-6.
    [18]
    Emery, C., Tai, E., Yarwood, G., 2001. Enhanced Meteorological Modeling and Performance Evaluation for Two Texas Ozone Episodes. Environ International Corporation, California, US.
    [19]
    Emmons, L.K., Walters, S., Hess, P.G., Lamarque, J.-F., Pfister, G.G., Fillmore, D., Granier, C., Guenther, A., Kinnison, D., Laepple, T., Orlando, J., Tie, X., Tyndall, G., Wiedinmyer, C., Baughcum, S.L., Kloster, S., 2010. Description and evaluation of the model for ozone and related chemical tracers, version 4 (MOZART-4).Geoscientific Model Development 3, 43-67.
    [20]
    Fallmann, J., Forkel, R., Emeis, S., 2016. Secondary effects of urban heat island mitigation measures on air quality. Atmospheric Environment 125, 199-211.https://doi.org/10.1016/j.atmosenv.2015.10.094.
    [21]
    Foley, J.A., DeFries, R., Asner, G.P., Barford, C., Bonan, G., Carpenter, S.R., Stuart Chapin, F., Coe, M.T., Daily, G.C., Gibbs, H.K., Helkowski, J.H., Holloway, T., Howard, E.A., Kucharik, C.J., Monfreda, C., Patz, J.A., Colin Prentice, I., Ramankutty, N., Snyder, P.K., 2005. Global consequences of land use. Science 309, 570-574.
    [22]
    Freitas, S.R., Longo, K.M., Alonso, M.F., Pirre, M., Marecal, V., Grell, G., Stockler, R., Mello, R.F., Sánchez Gácita, M., 2011. PREP-CHEM-SRC-1.0:a preprocessor of trace gas and aerosol emission fields for regional and global atmospheric chemistry models. Geoscientific Model Development 4, 419-433. https://doi.org/10.5194/gmd-4-419-2011.
    [23]
    Gao, H., Jia, G., 2013. Assessing disagreement and tolerance of misclassification of satellite-derived land cover products used in WRF model applications. Advances in Atmospheric Sciences 30, 125-141. https://doi.org/10.1007/s00376-012-2037-4.
    [24]
    Guenther, A., Karl, T., Harley, P., Wiedinmyer, C., Palmer, P.I., Geron, C., 2006. Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature). Atmospheric Chemistry and Physics Discussions 6, 107-173.
    [25]
    Grossman-Clarke, S., Liu, Y., Zehnder, J.A., Fast, J.D., 2008. Simulations of the urban planetary boundary layer in an arid metropolitan area. Journal of Applied Meteorology Climatology 47, 752-768. https://doi.org/10.1175/2007JAMC1647.1.
    [26]
    Han, S., Bian, H., Feng, Y., Liu, A., Li, X., Zeng, F., Zhang, X., 2011. Analysis of the relationship between O3, NO and NO2 in Tianjin, China. Aerosol Air Quality Research 11, 128-139. https://doi.org/10.4209/aaqr.2010.07.0055.
    [27]
    Janjic, Z.I., 2001. Nonsingular Implementation of the Mellor-yamada Level 2.5 Scheme in the NCEP Meso Model. NOAA/NWS/NCEP Off. Note 437.
    [28]
    Jauregui, E., Godinez, L., Cruz, F., 1992. Aspects of heat-island development in Guadalajara, Mexico. Atmospheric Environment 26B, 391-396.
    [29]
    Jiang, X., Wiedinmyer, C., Chen, F., Yang, Z.L., Lo, J.C.F., 2008. Predicted impacts of climate and land use change on surface ozone in the Houston, Texas area. Journal of Geophysical Research 113, 1-16. https://doi.org/10.1029/2008JD009820.
    [30]
    Kalnay, E., Cai, M., 2003. Impact of urbanization and land-use change on climate.Nature 423, 528-531. https://doi.org/10.1038/nature01675.
    [31]
    Kataoka, K., Matsumoto, F., Ichinose, T., Taniguchi, M., 2009. Urban warming trends in several large Asian cities over the last 100 years. The Science of the Total Environment 407, 3112-3119. https://doi.org/10.1016/j.scitotenv.2008.09.015.
    [32]
    Kavassalis, S.C., Murphy, J.G., 2017. Understanding ozone-meteorology correlations:a role for dry deposition. Geophysical Research Letters 44, 2922-2931. https://doi.org/10.1002/2016GL071791.
    [33]
    Kikuchi, K., Wang, B., 2008. Diurnal precipitation regimes in the global tropics.Journal of Climate 21, 2680-2696. https://doi.org/10.1175/2007JCLI2051.1.
    [34]
    Lacour, S.A., deMonte, M., Diot, P., Brocca, J., Veron, N., Colin, P., Leblond, V., 2006.Relationship between ozone and temperature during the 2003 heat wave in France:consequences for health data analysis. BMC Public Health 6. https://doi.org/10.1186/1471-2458-6-261.
    [35]
    Lai, L.-W., Cheng, W.-L., 2009. Air quality influenced by urban heat island coupled with synoptic weather patterns. The Science of the Total Environment 407, 2724-2733. https://doi.org/10.1016/j.scitotenv.2008.12.002.
    [36]
    Latif, M.T., Lim, S.H., Juneng, L., 2012. Variations of surface ozone concentration across the Klang Valley, Malaysia. Atmospheric Environment 61, 434-445.https://doi.org/10.1016/j.atmosenv.2012.07.062.
    [37]
    Lee, T.-W., Choi, H.S., Lee, J., 2014. Generalized scaling of urban heat island effect and its applications for energy consumption and renewable energy. Advanced Meteorology 2014, 1-5. https://doi.org/10.1155/2014/948306.
    [38]
    Li, J., Georgescu, M., Hyde, P., Mahalov, A., Moustaoui, M., 2014. Achieving accurate simulations of urban impacts on ozone at high resolution. Environmental Research Letters 9, 1-11. https://doi.org/10.1088/1748-9326/9/11/114019.
    [39]
    Li, X.X., Koh, T.Y., Entekhabi, D., Roth, M., Panda, J., Norford, L.K., 2013. A multiresolution ensemble study of a tropical urban environment and its interactions with the background regional atmosphere. Journal of Geophysical Research Atmosphere 118, 9804-9818. https://doi.org/10.1002/jgrd.50795.
    [40]
    Mahmood, R., Pielka, R.A.S., Hubbard, K.G., Niyogi, D., Bonan, G., More, 2010. Impacts of land use/land cover change on climate and future research priorities.Bulletin of the American Meteorological Society 91, 37-46. https://doi.org/10.1175/2009BAMS2769.1.
    [41]
    Martilli, A., Clappier, A., Rotach, M.W., 2002. An urban surface exchange parameterisation for mesoscale models. Boundary Layer Meteorology 104, 261-304.
    [42]
    Morris, K.I., 2016. Computational Study of Klang Valley's Urban Climatology, and Urbanisation of Putrajaya City, Malaysia. Nottingham EPrints. University of Nottingham.
    [43]
    Oke, T.R., 1976. The distinction between canopy and boundary-layer urban heat islands. Atmosphere (Basel) 14, 37-41. https://doi.org/10.1080/00046973.1976.9648422.
    [44]
    Oke, T.R., 1973. City size and the urban heat island. Atmospheric Environment 7, 769-779.
    [45]
    Oke, T.R., Maxwell, G.B., 1975. Urban heat island dynamics in Montreal and Vancouver.Atmospheric Environment 9, 191-200.
    [46]
    Ono, R., Nakagawa, Y., Tokumitsu, Y., Matsumoto, H., Oda, T., 2014. Effect of humidity on the production of ozone and other radicals by low-pressure mercury lamps.Journal of Photochemistry and Photobiology A Chemistry 274, 13-19. https://doi.org/10.1016/j.jphotochem.2013.09.012.
    [47]
    Ooi, M.C.G., Chan, A., Ashfold, M.J., Morris, K.I., Oozeer, M.Y., Salleh, S.A., 2017. Numerical study on effect of urban heating on local climate during calm intermonsoon period in greater Kuala Lumpur, Malaysia. Urban Climate 20, 228-250. https://doi.org/10.1016/j.uclim.2017.04.010.
    [48]
    Ooka, R., Khiem, M., Hayami, H., Yoshikado, H., Huang, H., Kawamoto, Y., 2011. Influence of meteorological conditions on summer ozone levels in the central Kanto area of Japan. Procedia Environmental Science 4, 138-150. https://doi.org/10.1016/j.proenv.2011.03.017.
    [49]
    Pielke, R.A., Pitman, A., Niyogi, D., Mahmood, R., McAlpine, C., Hossain, F., Goldewijk, K.K., Nair, U., Betts, R., Fall, S., Reichstein, M., Kabat, P., deNoblet, N., 2011. Land use/land cover changes and climate:modeling analysis and observational evidence. Wiley Interdiscipline Review of Climate Change 2, 828-850.https://doi.org/10.1002/wcc.144.
    [50]
    Pudasainee, D., Sapkota, B., Shrestha, M.L., Kaga, A., Kondo, A., Inoue, Y., 2006.Ground level ozone concentrations and its association with NOx and meteorological parameters in Kathmandu valley. Nepalese Atmospheric Environment 40, 8081-8087. https://doi.org/10.1016/j.atmosenv.2006.07.011.
    [51]
    Pusede, S.E., Steiner, A.L., Cohen, R.C., 2015. Temperature and recent trends in the chemistry of continental surface ozone. Chemical Reviews 115, 3898-3918.https://doi.org/10.1021/cr5006815.
    [52]
    Romero, H., Ihl, M., Rivera, A., Zalazar, P., Azocar, P., 1999. Rapid urban growth, landuse changes and air pollution in Santiago. Chilean Atmospheric Environment 33, 4039-4047.
    [53]
    Roth, M., 2007. Review of urban climate research in (sub)tropical regions. International Journal of Climatology 27, 1859-1873. https://doi.org/10.1002/joc.
    [54]
    Ryu, Y.-H., Baik, J.-J., Kwak, K.-H., Kim, S., Moon, N., 2013a. Impacts of urban landsurface forcing on ozone air quality in the Seoul metropolitan area. Atmospheric Chemistry and Physics 13, 2177-2194. https://doi.org/10.5194/acp-13-2177-2013.
    [55]
    Ryu, Y.-H., Baik, J.-J., Lee, S.-H., 2013b. Effects of anthropogenic heat on ozone air quality in a megacity. Atmospheric Environment 80, 20-30. https://doi.org/10.1016/j.atmosenv.2013.07.053.
    [56]
    Santamouris, M., 2015. Analyzing the heat islandmagnitude and characteristics in one hundred Asian and Australian cities and regions. The Science of the Total Environment 512-513, 582-598. https://doi.org/10.1016/j.scitotenv.2015.01.060.
    [57]
    Schultz, M., Rast, S., van het Bolscher, M., Pulles, T., Brand, R., Pereira, J., Mota, B., Spessa, A., Dalsoren, S., van Nojie, T., Szopa, S., 2007. RETRO Deliverable D1-6, Report on Emissions. 5th EU framework programme, Hamburg.
    [58]
    Sertel, E., Robock, A., Ormeci, C., 2009. Impacts of land cover data quality on regional climate. International Journal of Climatology 1-12. https://doi.org/10.1002/joc.
    [59]
    Sillman, S., 1999. The relation between ozone, NOx and hydrocarbons in urban and polluted rural environments. Atmospheric Environment 33, 1821-1845.
    [60]
    Silva, S.J., Heald, C.L., Geddes, J.A., Austin, K.G., Kasibhatla, P.S., Marlier, M.E., 2016.Impacts of current and projected oil palm plantation expansion on air quality over Southeast Asia. Atmospheric Chemistry and Physics 16, 10621-10635.https://doi.org/10.5194/acp-16-10621-2016.
    [61]
    Sow, K.S., Juneng, L., Tangang, F.T., Hussin, A.G., Mahmud, M., 2011. Numerical simulation of a severe late afternoon thunderstorm over Peninsular Malaysia.Atmospheric Research 99, 248-262. https://doi.org/10.1016/j.atmosres.2010.10.014.
    [62]
    Stewart, I., Oke, T.R., 2012. Local climate zones for urban temperature studies.Bulletin of the American Meteorological Society 93, 1879-1900. https://doi.org/10.1175/BAMS-D-11-00019.1.
    [63]
    Stockwell, W.R., Middleton, P., Chang, J.S., Yang, X., 1990. The second generation regional acid deposition model chemical mechanism for regional air quality modeling. Journal of Geophysical Research 95, 16343-16367.
    [64]
    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., Yarber, K.F., 2003. An inventory of gaseous and primary aerosol emissions in Asia in the year 2000. Journal of Geophysical Research 108 (8809). https://doi.org/10.1029/2002JD003093.
    [65]
    Tan, K.C., Lim, H.S., Mat Jafri, M.Z., 2014. Multiple regression analysis in modeling of columnar ozone in Peninsular Malaysia. Environmental Science and Pollution Research International 21, 7567-7577. https://doi.org/10.1007/s11356-014-2697-y.
    [66]
    Tangang, F.T., 2001. Low frequency and quasi-biennial oscillations in the Malaysian precipitation anomaly. International Journal of Climatology 21, 1199-1210.https://doi.org/10.1002/joc.676.
    [67]
    Thompson, W.T., Holt, T., Pullen, J., 2007. Investigation of a sea breeze front in an urban environment. Quarterly Journal of the Royal Meteorological Society 133, 579-594. https://doi.org/10.1002/qj.52.
    [68]
    Tie, X., Brasseur, G., Ying, Z., 2010. Impact of model resolution on chemical ozone formation in Mexico City:application of the WRF-Chem model. Atmospheric Chemistry and Physics 10, 8983-8995. https://doi.org/10.5194/acp-10-8983-2010.
    [69]
    United Nations, 2014. World Urbanization Prospects:the 2014 Revision. Highlights, New York.
    [70]
    Wakamatsu, S., Uno, I., Ohara, T., Schere, K.L., 1999. A study of the relationship between photochemical ozone and its precursor emissions of nitrogen oxides and hydrocarbons in Tokyo and surrounding areas. Atmospheric Environment 33, 3097-3108. https://doi.org/10.1016/S1352-2310(97)00493-7.
    [71]
    Wang, H., Fu, L., Chen, J., 2010. Developing a high-resolution vehicular emission inventory by integrating an emission model and a Traffic model:Part 2da case study in Beijing. Journal of the Air & Waste Management Association 60, 1471-1475. https://doi.org/10.3155/1047-3289.60.12.1471.
    [72]
    Wang, X.M., Lin, W.S., Yang, L.M., Deng, R.R., Lin, H., 2007. A numerical study of influences of urban land-use change on ozone distribution over the Pearl River Delta region, China. Tellus 59B, 633-641. https://doi.org/10.1111/j.1600-0889.2007.00271.x.
    [73]
    Willmott, C.J., Matsuura, K., 2005. Advantages of the mean absolute error (MAE)over the root mean square error (RMSE) in assessing average model performance.Climate Research 30, 79-82.
    [74]
    Yu, M., Carmichael, G.R., Zhu, T., Cheng, Y., 2012. Sensitivity of predicted pollutant levels to urbanization in China. Atmospheric Environment 60, 544-554.https://doi.org/10.1016/j.atmosenv.2012.06.075.
    [75]
    Yu, S., Eder, B., Dennis, R., Chu, S.-H., Schwartz, S.E., 2006. New unbiased symmetric metrics for evaluation of air quality models. Atmospheric Science Letters 7, 26-34. https://doi.org/10.1002/asl.125.
    [76]
    Zhang, N., Zhu, L., Zhu, Y., 2011. Urban heat island and boundary layer structures under hot weather synoptic conditions:a case study of Suzhou City, China.Advances in Atmospheric Sciences 28, 855-865. https://doi.org/10.1007/s00376-010-0040-1.
    [77]
    Zhang, Q., Streets, D.G., Carmichael, G.R., He, K.B., Huo, H., Kannari, A., Klimont, Z., Park, I.S., Reddy, S., 2009. Asian emissions in 2006 for the NASA INTEX-B mission. Atmospheric Chemistry and Physics 9, 5131-5153.
    [78]
    Zhao, L., Lee, X., Smith, R.B., Oleson, K., 2014. Strong contributions of local background climate to urban heat islands. Nature 511, 216-219. https://doi.org/10.1038/nature13462.
    [79]
    Zhong, S., Yang, X.Q., 2015. Ensemble simulations of the urban effect on a summer rainfall event in the Great Beijing Metropolitan Area. Atmospheric Research 153, 318-334. https://doi.org/10.1016/j.atmosres.2014.09.005.
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