Sulphur dioxide loadings over megacity Lahore (Pakistan) and adjoining region of Indo-Gangetic Basin

References

• Alam, K., T. Trautmann, T. Blaschke, and H. Majid. 2012. “Aerosol Optical and Radiative Properties during Summer and Winter Seasons over Lahore and Karachi.” Atmospheric Environment 50: 234–245. doi:10.1016/j.atmosenv.2011.12.027.
   Web of Science ®Google Scholar
• Ali, M., S. Tariq, K. Mahmood, A. D. Rana, A. Batool, and Z. ul-Haq. 2014. “A Study of Aerosol Properties over Lahore (Pakistan) by Using AERONET Data.” Asia-Pacific Journal of Atmospheric Science 50: 153–162. doi:10.1007/s13143-014-0004-y.
   Web of Science ®Google Scholar
• Amnuaylojaroen, T., M. C. Barth, L. K. Emmons, G. R. Carmichael, J. Kreasuwun, S. Prasitwattanaseree, and S. Chantara. 2014. “Effect of Different Emission Inventories on Modeled Ozone and Carbon Monoxide in Southeast Asia.” Atmospheric Chemistry and Physics 14: 12983–13012. doi:10.5194/acp-14-12983-2014.
   Web of Science ®Google Scholar
• Badarinath, K. V. S., K. K. Shailesh, R. S. Anu, and V. P. Krishna. 2009. “Analysis of Aerosol and Carbon Monoxide Characteristics over Arabian Sea during Crop Residue Burning Period in the Indo–Gangetic Plains Using Multi–Satellite Remote Sensing Datasets.” Journal of Atmospheric and Terrestrial Physics 71: 1267–1276. doi:10.1016/j.jastp.2009.04.004.
   Google Scholar
• Bernardi, M., and F. L. Snijders, 2000. “ARTEMIS Software Used by FAO for Remotely Sensed Data.” In World Meteorological Organization Expert Group Meeting on Software for Agroclimatic Data Management, Washington, DC, USA, 16–20 October 2000.
   Google Scholar
• Berresheim, H., P. Wine, and D. Davis. 1995. “Sulfur in the Atmosphere, in Composition Chemistry, and Climate of the Atmosphere.” In Composition Chemistry, and Climate of the Atmosphere, edited by H. B. Singh, 544. New York: International Thomson Publishing Inc.
   Google Scholar
• Bourassa, A. E., A. Robock, W. J. Randel, T. Deshler, L. A. Rieger, N. D. Lloyd, E. J. Llewellyn, and D. A. Degenstein. 2012. “Large Volcanic Aerosol Load in the Stratosphere Linked to Asian Monsoon Transport.” Science 337 (6090): 78–81. doi:10.1126/science.1219371.
   PubMed Web of Science ®Google Scholar
• Bourassa, A. E., A. Robock, W. J. Randel, T. Deshler, L. A. Rieger, N. D. Lloyd, E. J. Llewellyn, and D. A. Degenstein. 2013. “Response to Comments on Large Volcanic Aerosol Load in the Stratosphere Linked to Asian Monsoon Transport.” Science 339 (6120): 647. doi:10.1126/science.1227961.
   PubMed Web of Science ®Google Scholar
• Bovensmann, H., J. P. Burrows, M. Buchwitz, J. Frerick, S. Noël, V. V. Rozanov, K. V. Chance, and A. P. H. Goede. 1999. “SCIAMACHY: Mission Objectives and Measurement Modes.” Journal of the Atmospheric Sciences 56 (2): 127–150. doi:10.1175/1520-0469(1999)056<0127:SMOAMM>2.0.CO;2.
   Web of Science ®Google Scholar
• Bralić, M., M. Buljac, N. Periš, M. Buzuk, P. Dabić, and S. Brinić. 2012. “Monthly and Seasonal Variations of NO2, SO2 and Black–smoke Located within the Sport District in Urban Area, City of Split, Croatia.” Croatica Chemica Acta 85 (2): 139–145. doi:10.5562/cca1966.
   Web of Science ®Google Scholar
• Burrows, J. P., M. Weber, M. Buchwitz, V. Rozanov, A. Ladstatter-Weissenmayer, A. Richter, R. De Beek, et al. 1999. “The Global Ozone Monitoring Experiment (GOME): Mission Concept and First Scientific Results.” Journal of the Atmospheric Sciences 56: 151–175. doi:10.1175/1520-0469(1999)056<0151:TGOMEG>2.0.CO;2.
   Web of Science ®Google Scholar
• Carn, S. A., A. J. Krueger, N. A. Krotkov, K. Yang, and P. F. Levelt. 2007. “Sulfur Dioxide Emissions from Peruvian Copper Smelters Detected by the Ozone Monitoring Instrument.” Geophysical Research Letters 34: (L09801). doi:10.1029/2006GL029020.
   Web of Science ®Google Scholar
• Chin, M., D. J. Jacob, G. M. Gardner, M. S. Foreman‐Fowler, P. A. Spiro, and D. L. Savoie. 1996. “A Global Three‐Dimensional Model of Tropospheric Sulfate.” Journal of Geophysical Research 101 (D13): 18667–18690. doi:10.1029/96JD01221.
   Web of Science ®Google Scholar
• Clarisse, L., P.-F. Coheur, N. Theys, D. Hurtmans, and C. Clerbaux. 2014. “The 2011 Nabro Eruption, a SO2 Plume Height Analysis Using IASI Measurements.” Atmospheric Chemistry and Physics 14: 3095–3111. doi:10.5194/acp-14-3095-2014.
   Web of Science ®Google Scholar
• Clarisse, L., D. Hurtmans, C. Clerbaux, J. Hadji-Lazaro, Y. Ngadi, and P. F. Coheur. 2012. “Retrieval of Sulphur Dioxide from the Infrared Atmospheric Sounding Interferometer (IASI).” Atmospheric Measurement Techniques Discussions 4: 7241–7275. doi:10.5194/amt-5-581-2012.
   Web of Science ®Google Scholar
• CMF. 2015. “City Mayors Foundation, UK.” Accessed May 01, 2015. www.citymayors.com
   Google Scholar
• Datta, A., T. Saud, A. Goel, S. Tiwari, S. K. Sharma, M. Saxena, and T. K. Mandal. 2011. “Variation of Ambient SO2 over Delhi.” Journal of Atmospheric Chemistry. http://dx.doi.org/10.1007/s10874-011-9185-2.
   Web of Science ®Google Scholar
• Dey, S., and L. Di Girolamo. 2010. “A Climatology of Aerosol Optical and Microphysical Properties over the Indian Subcontinent from 9 Years (2000–2008) of Multiangle Imaging Spectroradiometer (MISR) Data.” Journal of Geophysical Research 115: D15204. doi:10.1029/2009JD013395.
   Google Scholar
• Di Girolamo, L., T. C. Bond, D. Bramer, D. J. Diner, F. Fettinger, R. A. Kahn, J. V. Martonchik, M. V. Ramana, V. Ramanathan, and P. J. Rasch. 2004. “Analysis of Multi-Angle Imaging Spectro-Radiometer (MISR) Aerosol Optical Depths over Greater India during Winter 2001-2004.” Geophysical Research Letters 31: L23115. doi:10.1029/2004GL021273.
   Web of Science ®Google Scholar
• Draxler, R. R., and G. D. Hess. 1997. “Description of the HYSPLIT_4 Modeling System.” In NOAA Tech Memo ERL ARL-224, 1–27. Silver Spring, MD: Air Resources Laboratory.
   Google Scholar
• Draxler, R. R., and G. D. Hess. 1998. “An Overview of the HYSPLIT_4 Modeling System for Trajectories, Dispersion and Deposition.” Australian Meteorological Magazine 47: 295–308.
   Google Scholar
• Eckhardt, S., A. J. Prata, P. Seibert, K. Stebel, and A. Stohl. 2008. “Estimation of the Vertical Profile of Sulfur Dioxide Injection into the Atmosphere by a Volcanic Eruption Using Satellite Column Measurements and Inverse Transport Modeling.” Atmospheric Chemistry and Physics 8: 3881–3897. doi:10.5194/acp-8-3881-2008.
   Web of Science ®Google Scholar
• Eisinger, M., and J. Burrows. 1998. “Tropospheric Sulfur Dioxide Observed by the ERS-2 GOME Instrument.” Geophysical Research Letters 25 (22): 4177–4180. doi:10.1029/1998GL900128.
   Web of Science ®Google Scholar
• FAO. 2005. “New_LocClim (incl. CD-ROM), Environment and Natural Resources Working paper No. 20.” http://www.fao.org/nr/climpag/pub/en3_051002_en.asp.
   Google Scholar
• Getis, A., and J. K. Ord. 1992. “The Analysis of Spatial Association by Use of Distance Statistics.” Geographical Analysis 24: 189–206. doi:10.1111/j.1538-4632.1992.tb00261.x.
   Web of Science ®Google Scholar
• Gommes, R., F. L. Snijders, and J. Q. Rijks. 1998. FAO Crop Forecasting Philosophy in National Food Warning Systems. Rome: FAO.
   Google Scholar
• Granier, C., B. Bessagnet, T. Bond, A. D’Angiola, H. Denier Van Der Gon, G. J. Frost, A. Heil, et al. 2011. “Evolution of Anthropogenic and Biomass Burning Emissions of Air Pollutants at Global and Regional Scales during the 1980-2010 Period.” Climatic Change 109 (1–2): 163–190. doi:10.1007/s10584-011-0154-1.
   Web of Science ®Google Scholar
• GVP. 2014. “Global Volcanism Program.” Report on Nabro (Eritrea). In Bulletin of the Global Volcanism Network, edited by R. Wunderman, Vol. 39, 5. Washington, DC: Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN201405-221101.
   Google Scholar
• Halmer, M., H. U. Schmincke, and H. F. Graf. 2002. “The Annual Volcanic Gas Input into the Atmosphere, in Particular into the Stratosphere: A Global Data Set for the Past 100 Years.” Journal of Volcanological and Geothermal Research 115: 511–528. doi:10.1016/S0377-0273(01)00318-3.
   Web of Science ®Google Scholar
• Graf, Hans-F., J. Feichter, and B. Langmann. 1997. “Volcanic Sulfur Emissions: Estimates of Source Strength and Its Contribution to the Global Sulfate Distribution.” Journal of Geophysical Research 102 (D9): 10727–10738. doi:10.1029/96JD03265.
   Web of Science ®Google Scholar
• Harrison, R. G., K. A. Nicoll, Z. Ulanowski, and T. A. Mather. 2010. “Self-Charging of the Eyjafjallajökull Volcanic Ash Plume.” Environmental Research Letters 5: 024004. doi:10.1088/1748-9326/5/2/024004.
   Web of Science ®Google Scholar
• Huang, X., M. Li, J. Li, and Y. Song. 2012. “A High-Resolution Emission Inventory of Crop Burning in Fields in China Based on MODIS Thermal Anomalies/Fire Products.” Atmospheric Environment 50: 9–15. doi:10.1016/j.atmosenv.2012.01.017.
   Web of Science ®Google Scholar
• Jethva, H., S. K. Satheesh, and J. Srinivasan. 2005. “Seasonal Variability of Aerosols over the Indo Gangetic Basin.” Journal of Geophysical Research 110: D21204. doi:10.1029/2005JD005938.
   Web of Science ®Google Scholar
• Jiang, J., Y. Zha, J. Gao, and J. Jiang. 2012. “Monitoring of SO2 Column Concentration Change over China from Aura OMI Data.” International Journal of Remote Sensing 33 (6): 1934–1942. doi:10.1080/01431161.2011.603380.
   Web of Science ®Google Scholar
• Kar, J., M. N. Deeter, J. Fishman, Z. Liu, A. Omar, J. K. Creilson, C. R. Trepte, M. A. Vaughan, and D. M. Winker. 2010. “Wintertime Pollution over the Eastern Indo-Gangetic Plains as Observed from MOPITT, CALIPSO and Tropospheric Ozone Residual Data.” Atmospheric Chemistry and Physics 10: 12273–12283. doi:10.5194/acp-10-12273-2010.
   Web of Science ®Google Scholar
• Katsouyanni, K., G. Touloumi, C. Spix, J. Schwartz, F. Balducci, S. Medina, G. Rossi, et al. 1997. “Short-Term Effects of Ambient Sulphur Dioxide and Particulate Matter on Mortality in 12 European Cities: Results from Time Series Data from the APHEA Project. Air Pollution and Health: A European Approach.” BMJ (Clinical Research Ed.) 314 (7095): 1658–1663. doi:10.1136/bmj.314.7095.1658.
   PubMed Web of Science ®Google Scholar
• Khattak, P., M. F. Khokhar, and S. A. Khan. 2014a. “Trans-Boundary Volcanic SO2 Detected over Pakistan from Satellite Observations during the Time Period 2004–2012.” Aerosol and Air Quality Research 14: 1543–1557. doi:10.4209/aaqr.2013.12.0361.
   Web of Science ®Google Scholar
• Khattak, P., M. F. Khokhar, and N. Yasmin. 2014b. “Spatio-Temporal Analyses of Atmospheric Sulfur Dioxide Column Densities over Pakistan by Using SCIAMACHY Data.” Aerosol and Air Quality Research 14: 1883–1896.
   Web of Science ®Google Scholar
• Khokhar, M. F., C. Frankenberg, J. Hollwedel, S. Beirle, S. Kuhl, M. Grzegorski, W. WilmsGrabe, U. Platt, and T. Wagner. 2004. “Satellite Remote Sensing of Atmospheric SO2: Volcanic Eruptions and Anthropogenic Emissions.” In Proceedings of the 2004 Envisat & ERS Symposium, ESA SP-572, edited by H. Lacoste and L. Ouwehand, Salzburg, Austria, September 6–10. ESA.
   Google Scholar
• Korontzi, S., J. Mccarty, T. Loboda, S. Kumar, and C. Justice. 2006. “Global Distribution of Agricultural Fires in Croplands from 3 Years of Moderate Resolution Imaging Spectroradiometer (MODIS) Data.” Global Biogeochemical Cycles 20 (2): GB2021. doi:10.1029/2005GB002529.
   Web of Science ®Google Scholar
• Krotkov, N. A., S. A. Carn, A. J. Krueger, P. K. Bhartia, and K. Yang. 2006. “Band Residual Difference Algorithm for Retrieval of SO2 from the Aura Ozone Monitoring Instrument (OMI).” IEEE Transactions on Geoscience and Remote Sensing 44: 1259–1266. doi:10.1109/TGRS.2005.861932.
   Web of Science ®Google Scholar
• Krotkov, N. A., B. McClure, R. R. Dickerson, S. A. Carn, C. Li, P. K. Bhartia, K. Yang, et al. 2008. “Validation of SO2 retrievals from the Ozone Monitoring Instrument over NE China.” Journal of Geophysical Research 113: D16S40. doi:10.1029/2007JD008818.
   Google Scholar
• Lee, C., R. V. Martin, A. van Donkelaar, G. O’Byrne, N. Krotkov, A. Richter, L. G. Huey, and J. S. Holloway. 2009. “Retrieval of Vertical Columns of Sulfur Dioxide from SCIAMACHY and OMI: Air Mass Factor Algorithm Development, Validation, and Error Analysis.” Journal of Geophysical Research 114: D22303. doi:10.1029/2009JD012123.
   Web of Science ®Google Scholar
• Lee, C., A. Richter, M. Weber, and J. P. Burrows. 2008. “SO2 Retrieval from SCIAMACHY Using the Weighting Function DOAS (WFDOAS) Technique: Comparison with Standard DOAS Retrieval.” Atmospheric Physics and Chemistry 8: 6137–6145. doi:10.5194/acp-8-6137-2008.
   Web of Science ®Google Scholar
• Levelt, P. F., G. H. J. Van Den Oord, M. R. Dobber, A. Malkki, H. Visser, J. De Vries, P. Stammes, J. O. V. Lundell, and H. Saari. 2006. “The Ozone Monitoring Instrument.” IEEE Transactions on Geoscience and Remote Sensing 44: 1093–1101. doi:10.1109/TGRS.2006.872333.
   Web of Science ®Google Scholar
• Li, C., Q. Zhang, N. A. Krotkov, D. G. Streets, K. He, S.-C. Tsay, and J. F. Gleason. 2010. “Recent Large Reduction in Sulfur Dioxide Emissions from Chinese Power Plants Observed by the Ozone Monitoring Instrument.” Geophysical Research Letters 37: (L08807). doi:10.1029/2010GL042594.
   Web of Science ®Google Scholar
• Likens, G. E., and F. H. Bormann. 1974. “Acid Rain: A Serious Regional Environmental Problem.” Science 184 (4142): 1176–1179. doi:10.1126/science.184.4142.1176.
   PubMed Web of Science ®Google Scholar
• Mallik, C., D. Ghosh, D. Ghosh, U. Sarkar, S. Lal, and S. Venkatramani. 2014. “Variability of SO2, CO and Light Hydrocarbons over a Megacity in Eastern India: Effects of Emissions and Transport.” Environmental Science and Pollution Research 21 (14): 8692–8706. doi:10.1007/s11356-014-2795-x.
   PubMed Web of Science ®Google Scholar
• Mallik, C., S. Lal, M. Naja, D. Chand, S. Venkataramani, H. Joshi, and P. Pant. 2013. “Enhanced SO2 Concentrations Observed over Northern India: Role of Long-Range Transport.” International Journal of Remote Sensing 34 (8): 2749–2762. http://dx.doi.org/10.1080/01431161.2012.750773.
   Web of Science ®Google Scholar
• Mandal, K. G., A. K. Misra, K. M. Hati, K. K. Bandyopadhyay, P. K. Ghosh, and M. Mohanty. 2004. “Rice Residue-Management Options and Effects on Soil Properties and Crop Productivity.” Journal of Food, Agriculture and Environment 2: 224–231.
   Web of Science ®Google Scholar
• Mishra, A. K., and T. Shibata. 2012. “Synergistic Analyses of Optical and Microphysical Properties of Agricultural Crop Residue Burning Aerosols over the Indo-Gangetic Basin (IGB).” Atmospheric Environment 57: 205–218. doi:10.1016/j.atmosenv.2012.04.025.
   Web of Science ®Google Scholar
• Naja, M., C. Mallik, T. Sarangi, V. Sheel, and S. Lal. 2014. “SO2 Measurements at a High Altitude Site in the Central Himalayas: Role of Regional Transport.” Atmospheric Environment 99: 392–402. doi:10.1016/j.atmosenv.2014.08.031.
   Web of Science ®Google Scholar
• NOAA ARL. 2012. NOAA, Air Resources Laboratory: “HYSPLIT Model Research, A Complete Modeling System for Simulating Dispersion of Harmful Atmospheric Material.” 2. College Park, MD: NOAA ARL.
   Google Scholar
• Ord, J. K., and A. Getis. 1995. “Local Spatial Autocorrelation Statistics: Distributional Issues and an Application.” Geographical Analysis 27: 286–306. doi:10.1111/j.1538-4632.1995.tb00912.x.
   Web of Science ®Google Scholar
• Ravindra, K., S. Mor, J. S. Kamyotra, and C. P. Kaushik. 2003. “Variation in Spatial Pattern of Criteria Air Pollutants before and during Initial Rain of Monsoon.” Environment Monitoring and Assessment 87 (2): 145–153. doi:10.1023/A:1024650215970.
   PubMed Web of Science ®Google Scholar
• Richter, A., F. Wittrock, and J. P. Burrows, 2006. “SO2 Measurements with SCIAMACHY.” Proceedings of the First Conference on Atmospheric Science, ESA publication SP-628, Frascati, Italy, May 8–12, 2006.
   Google Scholar
• Rix, M., P. Valks, N. Hao, J. Van Geffen, C. Clerbaux, L. Clarisse, P. F. Coheur, et al. 2010. “Satellite Monitoring of Volcanic Sulfur Dioxide Emissions for Early Warning of Volcanic Hazards.” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2: 196–206. doi:10.1109/JSTARS.2009.2031120.
   Web of Science ®Google Scholar
• Sharma, S. K., A. Datta, T. Saud, M. Saxena, T. K. Mandal, Y. N. Ahammed, and B. C. Arya. 2010. “Seasonal Variability of Ambient NH3, NO, NO2 and SO2 over Delhi.” Journal of Environmental Sciences 22 (7): 1023–1028. doi:10.1016/S1001-0742(09)60213-8.
   Web of Science ®Google Scholar
• Sidhu, B. S., and V. Beri. 2008. “Rice Residue Management: Farmer’s Perspective.” Indian Journal of Air Pollution Control VIII (I): 61–67.
   Google Scholar
• Singh, N., S. K. Mittal, R. Agarwal, A. Awasthi, and P. K. Gupta. 2010. “Impact of Rice Crop Residue Burning on Levels of SPM, SO2 and NO2 in the Ambient Air of Patiala (India).” International Journal of Environmental Analytical Chemistry 90 (10): 829–843. doi:10.1080/03067310903023874.
   Web of Science ®Google Scholar
• Spinei, E., S. A. Carn, N. A. Krotkov, G. H. Mount, K. Yang, and A. Krueger. 2010. “Validation of Ozone Monitoring Instrument SO2 Measurements in the Okmok Volcanic Cloud over Pullman, WA, July 2008.” Journal of Geophysical Research 115: D00L08. doi:10.1029/2009JD013492.
   Google Scholar
• Srivastava, A. K., S. Singh, S. Tiwari, V. P. Kanawade, and D. S. Bisht. 2012. “Variation between Near-Surface and Columnar Aerosol Characteristics during the Winter and Summer at Delhi in the Indo-Gangetic Basin.” Journal of Atmospheric and Solar-Terrestrial Physics 77: 57–66. doi:10.1016/j.jastp.2011.11.009.
   Web of Science ®Google Scholar
• Streets, D. G., T. C. Bond, G. R. Carmichael, S. D. Fernandes, Q. Fu, D. He, Z. Klimont, et al. 2003. “An Inventory of Gaseous and Primary Aerosol Emissions in Asia in the Year 2000.” Journal of Geophysical Research 108 (8809). http://dx.doi.org/10.1029/2002JD003093.
   PubMedGoogle Scholar
• Tariq, S., and M. Ali. 2015. “Spatio-Temporal Distribution of Absorbing Aerosols over Pakistan Retrieved from OMI Onboard Aura Satellite.” Atmospheric Pollution Research 6: 254–266. doi:10.5094/APR.2015.030.
   Web of Science ®Google Scholar
• Thomas, W., T. Erbertseder, T. Ruppert, M. Van Roozendael, J. Verdebout, C. Meleti, D. Balis, and C. Zerefos. 2005. “On the Retrieval of Volcanic Sulfur Dioxide Emissions from GOME Backscatter Measurements.” Journal of Atmospheric Chemistry 50: 295–320. doi:10.1007/s10874-005-5544-1.
   Web of Science ®Google Scholar
• ul-Haq, Z., A. D. Rana, M. Ali, K. Mahmood, S. Tariq, and Z. Qayyum. 2015b. “Carbon Monoxide (CO) Emissions and Its Tropospheric Variability over Pakistan Using Satellite-Sensed Data.” Advances in Space Research 56: 583–595. doi:10.1016/j.asr.2015.04.026.
   Web of Science ®Google Scholar
• ul-Haq, Z., S. Tariq, and M. Ali. 2015c. “Tropospheric NO2 Trends over South Asia during the Last Decade (2004-2014)Using OMI Data.” Advances in Meteorology Article ID 959284: Pages 18. http://dx.doi.org/10.1155/2015/959284.
   Google Scholar
• ul-Haq, Z., S. Tariq, M. Ali, K. Mahmood, S. A. Batool, and A. D. Rana. 2014. “A Study of Tropospheric NO2 Variability over Pakistan Using OMI Data.” Atmospheric Pollution Research 5 (4): 709–720. doi:10.5094/APR.2014.080.
   Web of Science ®Google Scholar
• ul-Haq, Z., S. Tariq, A. D. Rana, M. Ali, K. Mahmood, and P. Shahid. 2015a. “Satellite Remote Sensing of Total Ozone Column (TOC) over Pakistan and Neighbouring Regions.” International Journal of Remote Sensing 36 (4): 1038–1054. doi:10.1080/01431161.2015.1007255.
   Web of Science ®Google Scholar
• Ware, J. H., J. B. G. Ferris, D. W. Dockery, J. D. Spengler, D. O. Stram, and F. E. Speizer. 1986. “Effects of Ambient Sulfur Oxides and Suspended Particles on Respiratory Health of Preadolescent Children.” American Review of Respiratory Disease 5: 834–842.
   Google Scholar
• Witte, J. C., M. R. Schoeberl, A. R. Douglass, J. F. Gleason, N. A. Krotkov, J. C. Gille, K. E. Pickering, and N. Livesey. 2009. “Satellite Observations of Changes in Air Quality during the 2008 Beijing Olympics and Paralympics.” Geophysical Research Letters 36: L17803. doi:10.1029/2009GL039236.
   Google Scholar
• Wunderman, R., E. Venzke, S. K. Sennert, and Y. Hayakawa. 2008. “Dalaffilla.” Bulletin of the Global Volcanism Network 33 (10): 2–5. doi:10.5479/si.GVP.BGVN200810-221070.
   Google Scholar
• Yan, H., L. Chen, L. Su, J. Tao, and C. Yu. 2014. “SO2 Columns over China: Temporal and Spatial Variations Using OMI and GOME-2 Observations.” IOP Conf. Series: Earth and Environmental Science 17: (012027). doi:10.1088/1755-1315/17/1/012027.
   Google Scholar
• Yang, K., N. A. Krotkov, A. J. Krueger, S. A. Carn, P. K. Bhartia, and P. F. Levelt. 2007. “Retrieval of Large Volcanic SO2 Columns from the Aura Ozone Monitoring Instrument: Comparison and Limitations.” Journal of Geophysical Research 112: D24S43. http://dx.doi.org/10.1029/2007JD008825.
   Web of Science ®Google Scholar
• Yoo, J.-M., Y.-R. Lee, D. Kim, M.-J. Jeong, W. R. Stockwell, P. K. Kundu, S.-M. Oh, D.-B. Shin, and S.-J. Lee. 2014. “New Indices for Wet Scavenging of Air Pollutants (O3, CO, NO2, SO2, and PM10) by Summertime Rain.” Atmospheric Environment 82: 226–237. doi:10.1016/j.atmosenv.2013.10.022.
   Web of Science ®Google Scholar
• Zarrin, A., H. Ghaemi, M. Azadi, A. Mofidi, and E. Mirzaei. 2011. “The Effect of the Zagros Mountains on the Formation and Maintenance of the Iran Anticyclone Using Regcm4.” Meteorology and Atmospheric Physics 112: 91–100. doi:10.1007/s00703-011-0134-z.
   Web of Science ®Google Scholar
• Zhang, Q., D. G. Streets, and K. He. 2009. “Satellite Observations of Recent Power Plant Construction in Inner Mongolia, China.” Geophysical Research Letters 36: L15809. doi:10.1029/2009GL038984.
   Google Scholar
• Zhang, T. 2008. “Limiting Distribution of the G Statistics.” Statistics and Probability Letters 78: 1656–1661. doi:10.1016/j.spl.2008.01.023.
   Web of Science ®Google Scholar
• Zhang, X., J. Van Geffen, H. Liao, P. Zhang, and S. Lou. 2012. “Spatiotemporal Variations of Tropospheric SO2 over China by SCIAMACHY Observations during 2004–2009.” Atmospheric Environment 60: 238–246. doi:10.1016/j.atmosenv.2012.06.009.
   Web of Science ®Google Scholar