Dr. Ravi Kant Pathak

Transcription

1 Dr. Ravi Kant Pathak Dr. Ravi Kant Pathak Department of Chemistry and Moelcular Biology, University of Gothenburg, Sweden Kemigarden 4, SE41296 Sweden tel: +46-(0) , +46-(0) , Current Position Young Scientist Department of Chemistry and Molecular Biolöogy, Atmospheric Sciences, University of Gothenburg, Sweden Education PhD: Chemical Engineering (Atmospheric Aerosol), HKUST (Hong Kong Univ. of Science and Technology), May 2004 Integrated B. Tech. & M. Tech. : Chemical Engineering, IIT (Indian Institute of Technology), Bombay; India, July 1999 Experience Postdoc: Chemical Engineering, Carnegie Mellon University, Pittsburgh, USA (Sept Dec. 2006): Postdoc: Civil and Structural Engineering, Hong Kong Polytech. University, HK(Oct.2007 Jun.2010): Postdoc: Chemistry, University of Gothenburg, Sweden (Sept Dec.2011) Courses Taught Atmospheric measurements; Aerosols; Chemistry, University of Gothenburg and Chalmers Technical University, Sweden, Spring-2011 Teaching Assistant, Chemical Engineering, HKUST ( ) Teaching Assistant Coordinator, Chemical Engineering, HKUST ( ) Scientific Interests Major research areas include formation and transformation of Secondary organic aerosols and soot; aerosol acidity and nitrate chemistry, multiphase atmospheric chemistry; heterogeneous chemistry. The research is motivated by the effects of atmospheric aerosols on climate, environment and human health. More than 12 years of research experience in laboratory aerosol experiments, atmospheric aerosol field intensive campaigns, process modeling of aerosol dynamics and chemical composition, and systhesis of aerosol parameterizations for climate and air quality models. Achievements Page 1(6)

2 FORMAS Young Scientist Research and Development Grant (5.78 M SEK); publications in international refereed journals with h-index 11; 5 year impact factor (average ~4.08) and total 419 citations; average citations/paper~25 18 oral/poster presentations in international conferences Research team member and coordinator in MERGE Swedish national strategic modeling project, Postdoctoral Research Fellowship: Department of Chemistry, University of Gothenburg, Sweden, September, Valued Reviewer Elsevier, 2009 Postdoctoral Research Fellowship: Department of Civil and Structural Engineering; Hong Kong Polytechnic University, Hong Kong, Faculty position offer: Asst. Professor, Chemical Engineering and Centre for Atmospheric Sciences, Indian Institute of Technology (IIT), Delhi, India; October, 2007 Postdoctoral Research Fellowship: Department of Chemical Engineering; Carnegie Mellon University, Pittsburgh, PA, USA, Master of Technology Project Sponsorship by Reliance Industries Ltd., Indian Institute of Technology Bombay, Ranked among top 0.5% among all the participants from the entire India in a national level Joint Entrance Examination to Indian Institute of Technology, 1994 All India Residential Public School scholarship: A very prestigious and highly competitive and merit based scholarship. Only 500 students were awarded from the entire country (India), Professional organizations and services Board Member MERGE, March Member Gothenburg Atmospheric Science Center, Member Nordic Society for Aerosol Research, Member American Geophysical Union, Member American Association for Aerosol Research, International Fall School for Atmospheric Sciences, Japanese Society for the Promotion of Science, Nagoya, Japan, 2002 External referee for: Journal of Geophysical Research, Atmospheric Environment, Atmospheric Research, Chemosphere, Hazardous Material, Journal of Aerosol and Air Quality Research, Journal of Environmental Engineering and Science, Science of Total environment, Journal of Air and Waste Management Page 2(6)

3 Thesis (M.S./Ph.D.) Supervision S.No. Student Name Year of Completion Title of Thesis 1. Anna Lutz (M.S.) 2011 Formation of Chemistry, University of Gothenburg, Sweden aerosol from the oxidation limonene in flow tube 2. Cilan Cai (M.S.) Chemistry, University of Gothenburg, Sweden 2011 (in progress) Parameterization of aerosol using chemical and volatility basis schemes 3. Agot Watne (PhD) Chemistry, University of Gothenburg, Sweden (in progress) Formation and properties of aerosol from biogenic VOCs and their parameterization Funded Projects Perio Sponsoring d Organisation Jan- FORMAS The Swedish 2015 Environmental Research Council, Sweden, Title of Project The complexity of aerosols as short-lived climate forcers: Interactions between primary emitted soot and aerosol (SOA) in a changing climate Amount of Grant 5.78 Millions Swedish kroner (~Rs. 4.5 crores) Co-Investigators (if any) Mattias Hallquist, U Got, Sweden Neil Donahue, CMU, USA Spyros Pandis, CMU, USA Thomas Mente, FZH, Germany William Brune, U Penn. USA Birgitta Svenningsson, LUND, Swden List of publications PhD thesis Pathak, R.K Acidity and Sampling Artifact of PM 2.5 (2004) Hong Kong University of Science and Technology, : Peer reviewed articles in international journals On ; Web of science: Total number of publications in peer-reviewed scientific journals: 17; Number of citations: 419, h-index: 11, Average number of citations perarticle: 25; Overall average journal Impact Factor (5 Years) for all publications: Selected Publications 1. An W. J., Pathak R. K., Lee B.-H., and Pandis S. N Aerosol volatility measurement using an improved thermodenuder: Application to Secondary Organic Aerosol. Journal of Aerosol Science, 38, [5 Yr. Impact Factor: 2.723] Citations: 57 Page 3(6)

4 2. Stanier C.O., Pathak R. K., and Pandis S. N Measurements of the volatility of arosols from a-pinene ozonolysis. Environmental science and Technology, 41(8); [Class A: 5 Yr. Impact Factor: 5.397] Citations: Pathak R. K., Stanier C.O., Donahue N. M., and Pandis S. N Ozonolysis of α- pinene at atmospherically relevant concentrations: Temperature dependence of aerosol mass fractions (yields). Journal of Geophysical Research, 112, D03201, DOI: /2006JD [Class A: 5 Yr. Impact Factor: 3.465], Citations: Pathak R. K., Presto A.A., Lane T. E., Stanier C.O., Donahue N. M., and Pandis S.N Ozonolysis of α-pinene: parameterization of aerosol mass fraction. Atmospheric Chemistry and Physics, 7, [Class A: 5 Yr. Impact Factor: 5.824], Citations: Pathak, R.K., Yao, X.H., Alexis, K.H.L. and Chan, C.K Acidity and concentration of ionic species of PM2.5 in Hong Kong. Atmospheric Environment, 37, [5 Yr. Impact Factor: 3.435] Citations: 39 Full list of Publications 1. Pathak, R.K., Yao, X.H., Alexis, K.H.L. and Chan, C.K Acidity and concentration of ionic species of PM2.5 in Hong Kong. Atmospheric Environment, 37, [5 Yr. Impact Factor: 3.435] Citations: Pathak, R.K., Yao, X.H. and Chan, C.K Sampling artifacts of acidity and ionic species in PM2.5. Environmental Science and Technology, 38, [Class A: 5 Yr. Impact Factor: 5.397] Citations: (*)Pathak, R.K., Peter Louie and Chan, C.K Characteristics of aerosol acidity in Hong Kong. Atmospheric Environment, 38, [Class A: 5 Yr. Impact Factor: 3.435] Citations: Pathak R. K., Chan C. K., Gas-particle and inter-particle interaction in the sampling artifact of PM2.5. Atmospheric Environment, 39, [Class A: 5 Yr. Impact Factor: 3.435] Citations: An W. J., Pathak R. K., Lee B.-H., and Pandis S. N Aerosol volatility measurement using an improved thermodenuder: Application to Secondary Organic Aerosol. Journal of Aerosol Science, 38, [5 Yr. Impact Factor: 2.723] Citations: Stanier C.O., Pathak R. K., and Pandis S. N Measurements of the volatility of arosols from a-pinene ozonolysis. Environmental science and Technology, 41(8); [Class A: 5 Yr. Impact Factor: 5.397] Citations: Pathak R. K., Stanier C.O., Donahue N. M., and Pandis S. N Ozonolysis of α- pinene at atmospherically relevant concentrations: Temperature dependence of aerosol mass fractions (yields). Journal of Geophysical Research, 112, D03201, DOI: /2006JD [Class A: 5 Yr. Impact Factor: 3.465], Citations: Pathak R. K., Presto A.A., Lane T. E., Stanier C.O., Donahue N. M., and Pandis S.N Ozonolysis of α-pinene: parameterization of aerosol mass fraction. Atmospheric Chemistry and Physics, 7, [5 Yr. Impact Factor: 5.824] Citations: Pathak R. K., Donahue N. M., and Pandis S. N Ozonolysis of β-pinene: Temperature dependence of aerosol mass fractions (yields). Environmental Science and Technology, 42, [Class A: 5 Yr. Impact Factor: 5.397] Citations: Takahama S., Pathak R. K., and Pandis S. N Efflorescence transitions of ammonium sulfate particles coated with aerosol. Environmental science and Technology, 41 (7), [5 Yr. Impact Factor: 5.397], Citations: 9 Page 4(6)

5 11. Konstenidou E. Pathak R.K., Donahue N.M. and Pandis S.N Density determination of aerosol using Aerosol Mass Spectrometer and SMPS. Aerosol Science and Technology, 41, 1-9; DOI: / [5 Yr. Impact Factor: 2.893] Citations: Pierce, J. R., Engelhart, G. J., Hildebrandt, L., Weitkamp, E.A., Pathak, R.K., Donahue, N.M., Robinson, A.L., Adams, P.J., Pandis, S.N Constraining particle evolution from wall losses, coagulation, and condensation-evaporation in smog-chamber experiments: Optimal estimation based on size distribution measurements, Aerosol Science And Technology, 42 (9), [5 Yr. Impact Factor: 2.893] Citations: Pathak R.K., Wu W.S, and Wang T Summertime PM2.5 in four cities of China: Nitrate formation in an ammonia deficient atmosphere.. Atmospheric Chemistry and Physics, 9, [5 Yr. Impact Factor: 5.788], Citations: Wei. N., Pathak R.K., Wang, T., Gao X., Wang X., Gao, R., Zhang, Q., Wang W Comparison among filter-based, impactor-based and continuous techniques for measuring atmospheric fine sulfate and nitrate, Atmospheric Environment, 44, [5 Yr. Impact Factor: 3.435] Citations: Pathak R.K., Wu, W.S., Wang, J. and Wang, T Nighttime enhancement 45, of PM2.5 nitrate in ammonia-poor atmospheric conditions in Beijing and Shanghai: Plausible contributions of heterogeneous hydrolysis of N2O5 and HNO3 partitioning. Atmospheric Environment, 45, [5 Yr. Impact Factor: 3.435], Citations: Huang, X.F., Qiu, R., Chan C. K. and Pathak, R.K Evidence of high PM2.5 strong acidity in ammonia rich atmosphere of Guangzhou, China: Transition in pathways of ambient ammonia to form aerosol ammonium at [NH4+]/[SO42-]=1.5. Atmospheric Research, 99, [5 Yr. Impact Factor: 1.743], Citations: Pathak, R.K., Wang, T., Ho, K.F. and Lee, S.C Characteristics of summertime PM2.5 Organic and Elemental Carbon in Four Major Cities of China: Implications of High Acidity on Water Soluble Organic Carbon, Atmospheric Environment, 45, [5 Yr. Impact Factor: 3.435] Citations: 4 2. Proceedings (i.e. selected reviewed abstract at international conferences) 1. Pathak R. K., Yao X., Chan C. K. (2001) Acidity measurements and sampling artifacts of PM2.5, 2 nd Asian Aerosol Conference, July 2-4, Paper II-B2, Pusan, Korea. 2. Pathak R. K., Yao X., Chan C. K. (2002) Sampling artifacts of acidity and ionic species of PM2.5, 6 th International Aerosol Conference, September 8-13, Paper ThPao04, Taipei, Taiwan. 3. Pathak R. K., Yao X., Lau K.H., Chan C. K. (2002) Acidity and concentrations of ionic species of PM2.5 in Hong Kong, 6 th International Aerosol Conference, September 8-13, Paper TuPK28, Taipei, Taiwan. 4. Pathak R. K., Yao X., Chan C. K. (2003) Sampling artifacts of acidity and ionic species of PM2.5, European Aerosol Conference, September 1-5, Madrid, Spain. 5. Pathak R. K., Yao X., Chan C. K. (2003) Sampling artifacts of acidity and ionic species of PM2.5, presented at the 22 nd annual meeting of American Association for Aerosol Research, October 20-24, Anaheim, Los-Angeles, California, USA. 6. Pathak R. K., Chan C. K. (2004) The contribution of non-local sources to respirable suspended particulates in Hong Kong, presented at the 3 rd Asian Aerosol Conference, January 6-9, Hong Kong. Page 5(6)

6 7. Pathak R. K., Yao X., Fang, M., Chan C. K. (2004) Sampling artifacts of acidity and ionic species of PM2.5, presented at the 3 rd Asian Aerosol Conference, January 6-9, Hong Kong. 8. Pathak R. K., Peter Louie, Chan C. K. (2004) Characteristics of aerosol acidity in Hong Kong, presented at the 3 rd Asian Aerosol Conference, January 6-9, Hong Kong. 9. Pathak, R. K, Yu, J. Z., and Chan, C. K. (2004) Water-soluble organic carbon in coarse particles in a coastal environment: Role of cloud processing, Paper A21C-0750, 2004 AGU, Fall Meeting, San Francisco, USA. 10. Pathak R. K., Stanier C.O., Donahue N. M., and Pandis S. N. (2005) Ozonolysis of a- pinene: temperature dependence of SOA yields, presented at the 24 th annual meeting of American Association for Aerosol Research, September 16-20, Paper 7B6, Austin, Texas, USA. 11. Huff-Hartz K. E., Pathak R. K., Presto A. A., Tischuk, J.E., Donahue, N.M. and Pandis, S.N. (2005). Temperature dependence of the yield and kinetics of secondary Organic aerosol formation during limonene ozonolysis, presented at the 24 th annual meeting of American Association for Aerosol Research, September 16-20, Paper 6D6, Austin, Texas, USA. 12. Lane, T., Huff-Hartz K. E., Pathak R. K., Presto A. A., Donahue, N.M. and Pandis, S.N. (2005). Secondary Organic aerosol formation in the eastern US: Effect of Temperature, NOx and UV radiation, presented at the 24 th annual meeting of American Association for Aerosol Research, September 16-20, Paper 1PH44, Austin, Texas, USA. 13. Pathak R. K., Stanier C.O., Donahue N. M., and Pandis S. N. (2006) Ozonolysis of α pinene at atmospherically relevant concentrations: Temperature dependence of aerosol mass fractions (yields). Presented at 7 th International Aerosol Conference, St. Paul, Minneapolis, MN, USA. 14. Pathak R. K., Huff-Hartz K. E., Donahue N. M., and Pandis S. N. (2006) Ozonolysis of β -pinene and limonene: role of inorganic seeds, ozone and temperature on SOA yields. Presented at 7 th International Aerosol Conference, St. Paul, Minneapolis, MN, USA. 15. Lane, T., Huff-Hartz K. E., Pathak R. K., Presto A. A., Donahue, N.M. and Pandis, S.N. (2006). Secondary Organic aerosol formation in the eastern US: Effect of temperature, NOx and UV radiation. Presented at 7 th International Aerosol Conference, St. Paul, Minneapolis, MN, USA. 16. Pathak R.K., Wu, W.S., Wang, J. and Wang, T. (2009). Contributions of heterogeneous hydrolysis of N 2 O 5 and HNO 3 partitioning in the formation of high PM 2.5 nitrate in ammonia-deficient atmosphere in Beijing and Shanghai. Paper A31B-0102, 2009 AGU, Fall Meeting, San Francisco, USA. 17. Pathak, R.K., Salo, K., Mentel, T. F., Tillmann, R., Lutz, A. Emanuelsson, E.U. and Hallquist M Effect of reaction temperature and ozone concentration on the volatility of limonene ozonolysis products. Presented at the 2011 European Aerosol Conference, Manchester, UK. 18. Pathak, R.K., Salo, K., Emanuelsson, E.U., Jonsson, A. M., Lutz, A., Hallquist, M. The influence of ozone and radical chemistry on the volatility of the aerosol from limonene oxidation NOSA Symposium,Tampere, Finland. Page 6(6)