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Lokesh Kumar Sahu

Professor
Space and Atmospheric Sciences Division
E-mail: [email protected]
Telephone: +91-79-26314553

Research Interests

  • Atmospheric chemistry and trace gases, precursors of ozone in the troposphere
  • Volatile organic compounds (VOCs) and measurements using PTR-TOF-MS
  • Long-range transport of trace constituents
  • Hetero-phase process in the atmosphere and its implications on climate change
  • Characterization of BVOC emissions: Air-Sea Exchange & Terrestrial sources
  • Understanding the roles of reactive halogens in the troposphere
  • Photochemistry of non-methane hydrocarbons (NMHCs) in the troposphere

Awards

  • NASA Group Achievement Award, 2009
  • Certificate of Appreciation, Japan Society for the Promotion of Science (JSPS), 2007
  • Japan Society for the Promotion of Science (JSPS)Postdoctoral Award, 2006

Publications in Peer-Reviewed Journals


  1. Shukla, A.K., Tripathi, S.N., Canonaco, F., Lalchandani, V., Sahu, R., Srivastava, D., Dave, J., Thamban, N.M., Gaddamidi, S., Sahu L.K., Kumar, M., Singh, V., and Rastogi, N. (2023), Spatio-temporal variation of C-PM2.5 (composition based PM2.5) sources using PMF*PMF (double-PMF) and single-combined PMF technique on real-time non-refractory, BC and elemental measurements during post-monsoon and winter at two sites in Delhi, India, Atmospheric Environment, https://doi.org/10.1016/j.atmosenv.2022.119456
  2. Dave, P.N., Chaturvedi, S., Sahu L.K. (2023). Biohydrogen Production from Food and Beverage Processing: A Promising Strategy for Wastewater Management. In: Mishra, A.K., Hussain, C.M. (eds) Biobased Materials. Springer, Singapore. https://doi.org/10.1007/978-981-19-6024-6_14
  3. Sahu L.K., Tripathi, N., Gupta, M., Singh, V., Yadav, R., & Patel, K. (2022). Impact of COVID-19 pandemic lockdown in ambient concentrations of aromatic volatile organic compounds in a metropolitan city of western India. Journal of Geophysical Research: Atmospheres, 127, e2022JD036628. https://doi.org/10.1029/2022JD036628.
  4. Tripathi, N., Sahu L.K., Wang, L., Vats, P., Soni, M., Kumar, P., et al. (2022). Characteristics of VOC composition at urban and suburban sites of New Delhi, India in winter. Journal of Geophysical Research: Atmospheres, 127, e2021JD035342. https://doi.org/10.1029/2021JD035342.
  5. Jain, V., Tripathi, S. N., Tripathi, N., Gupta, M., Sahu L.K., Murari, V., Gaddamidi, S., Shukla, A. K., and Prevot, A. S. H. (2022): Real-time measurements of NMVOCs in the central IGB, Lucknow, India: Source characterization and their role in O3 and SOA formation, EGU sphere [preprint], https://doi.org/10.5194/egusphere-2022-1165, 2022.
  6. Bhowmik, H.S., Tripathi, S.N., Sahu, R., Shukla, A.K., Lalchandani, V., Talukdar, S., Tripathi, N., Sahu L.K. (2022). Insights into the Regional Transport and Local Formation of Secondary Organic Aerosol in Delhi, India. Aerosol Air Qual. Res. 22, 220113. https://doi.org/10.4209/aaqr.220113
  7. Ambade, B., Sankar, T.K., Sahu L.K. and Dumka, U.C., (2022), Understanding Sources and Composition of Black Carbon and PM2. 5 in Urban Environments in East India. Urban Science, 6(3), https://doi.org/10.3390/urbansci6030060
  8. Jain, V., Tripathi, S.N., Tripathi, N., Sahu L.K., Gaddamidi, S., Shukla, A.K., Bhattu, D. and Ganguly, D., (2022). Seasonal variability and source apportionment of non-methane VOCs using PTR-TOF-MS measurements in Delhi, India. Atmospheric Environment, 283, 119163, https://doi.org/10.1016/j.atmosenv.2022.119163.
  9. Soni, M., Girach, I., Sahu L.K. and Ojha, N., (2022). Photochemical evolution of air in a tropical urban environment of India: A model-based study, Chemosphere, 297, 134070, https://doi.org/10.1016/j.chemosphere.2022.134070.
  10. Dave, P.N., Chopda, L.V. and Sahu L.K., (2022). Applications of Nanomaterials in Corrosion Protection Inhibitors and Coatings. In Functionalized Nanomaterials for Corrosion Mitigation: Synthesis, Characterization, and Applications, American Chemical Society (ACS), 9, 189-212, https://pubs.acs.org/doi/full/10.1021/bk-2022-1418.ch009.
  11. Chutia, L., Ojha, N., Girach, I., Pathak, B., Sahu L.K., Sarangi, C., Flemming, J., da Silva, A. and Bhuyan, P.K., (2022). Trends in sulfur dioxide over the Indian subcontinent during 2003�2019, Atmospheric Environment, 284, 119189, https://doi.org/10.1016/j.atmosenv.2022.119189
  12. Sahu L. K., and Sinha P.R. (2022). Vertical profiles of trace gases in the troposphere over South Asia. Asian Atmospheric Pollution, Elsevier, 303-322, ISBN 9780128166932, https://doi.org/10.1016/B978-0-12-816693-2.00009-3.
  13. Lalchandani V., D. Srivastava, J. Dave, S. Mishra, N. Tripathi, A. K. Shukla, R. Sahu, N. M. Thamban, S. Gaddamidi, K. Dixit, D. Ganguly, S. Tiwari, A. K. Srivastava, Sahu L.K., N. Rastogi, P. Gargava, S. N. Tripathi (2022). Effect of Biomass Burning on PM2.5 Composition and Secondary Aerosol Formation During Post-Monsoon and Winter Haze Episodes in Delhi. Journal of Geophysical Research: Atmospheres, 127(1), e2021JD035232, https://doi.org/10.1029/2021JD035232
  14. Yadav, R., Vyas, P., Kumar, P., Sahu L.K., Kumar, U., Pandeya, V., Tripathi, N., Gupta, M., et al. (2022). Particulate-matter pollution in urban cities of India during unusually restricted anthropogenic activities. Frontiers in Sustainable Cities, section Climate Change and Cities, https://doi.org/10.3389/frsc.2022.792507
  15. Ambade, B., Kumar, A., Kumar, A. and Sahu L.K. (2021). Temporal variability of atmospheric particulate-bound polycyclic aromatic hydrocarbons (PAHs) over central east India: sources and carcinogenic risk assessment. Air Quality, Atmosphere & Health, pp.1-16, https://doi.org/10.1007/s11869-021-01089-5
  16. Arnab Mondal, Ummed Singh Saharan, Rahul Arya, Lokesh Yadav, Sakshi Ahlawat, Ritu Jangirh, Garima Kotnala, Nikki Choudhary, Rubiya Banoo, Akansha Rai, Pooja Yadav, Martina Rani, Shyam Lal, Gareth J. Stewart, Beth S. Nelson, W. Joe F. Acton, Adam R. Vaughan, Jacqueline F. Hamilton, James R. Hopkins, C. Nicholas Hewitt, Sahu L.K., Nidhi Tripathi, S.K. Sharma, T.K. Mandal, (2021). Non-methane volatile organic compounds emitted from domestic fuels in Delhi: Emission factors and total city-wide emissions. Atmospheric Environment: X, 11, 100127, https://doi.org/10.1016/j.aeaoa.2021.100127.
  17. Shukla, A.K., Lalchandani, V., Bhattu, D., Dave, J.S., Rai, P., Thamban, N.M., Mishra, S., Gaddamidi, S., Tripathi, N., Vats, P., Rastogi, N., Sahu L.K., Ganguly, D., Kumar, M., Singh, V., Gargava, P., and Tripathi S.N. (2021). Real-time quantification and source apportionment of fine particulate matter including organics and elements in Delhi during summertime. Atmospheric Environment, 261, p.118598, https://doi.org/10.1016/j.atmosenv.2021.118598.
  18. Stewart, G.J., Nelson, B.S., Acton, W.J.F., Vaughan, A.R., Hopkins, J.R., Yunus, S.S., Hewitt, C.N., Wild, O., Nemitz, E., Gadi, R. Sahu L.K., Mandal T. K., Gurjar B. R., Rickard A. R., Lee, J. D., Hamilton J.F. (2021). Emission estimates and inventories of non-methane volatile organic compounds from anthropogenic burning sources in India. Atmospheric Environment: X, 11, p.100115, https://doi.org/10.1016/j.aeaoa.2021.100115.
  19. Tripathi, N., Sahu L.K., Patel, K., Kumar, A. and Yadav, R. (2021), Ambient air characteristics of biogenic volatile organic compounds at a tropical evergreen forest site in Central Western Ghats of India, Journal of Atmospheric Chemistry, https://doi.org/10.1007/s10874-021-09415-y.
  20. Dave, P. N., Chaturvedi, S. and Sahu L.K. (2021). Impact of polychlorinated biphenyls on environment and public health. Handbook of Advanced Approaches Towards Pollution Prevention and Control: Volume 1: Conventional and Innovative Technology, and Assessment Techniques for Pollution Prevention and Control, 261-280, https://doi.org/10.1016/B978-0-12-822121-1.00013-8.
  21. Stewart, G. J., Nelson, B. S., Acton, W. J. F., Vaughan, A. R., Hopkins, J. R., Yunus, S. S., Hewitt, C. N., Nemitz, E., Mandal, T.K., Gadi, R. Sahu L.K., Rickard A.R., Lee, J.D., and Hamilton, J. F. (2021), Comprehensive organic emission profiles, secondary organic aerosol production potential, and OH reactivity of domestic fuel combustion in Delhi, India. Environmental Science: Atmospheres, DOI: 10.1039/D0EA00009D.
  22. Talukdar S, Tripathi SN, Lalchandani V, Rupakheti M, Bhowmik HS, Shukla AK, Murari V, Sahu R, Jain V, Tripathi N, Dave J, Rastogi N, Sahu L.K. (2021). Air Pollution in New Delhi during Late Winter: An Overview of a Group of Campaign Studies Focusing on Composition and Sources. Atmosphere. 12(11):1432. https://doi.org/10.3390/atmos12111432
  23. Ambade B., Kumar A., and Sahu L.K. (2021), Characterization and health risk assessment of particulate bound polycyclic aromatic hydrocarbons (PAHs) in indoor and outdoor atmosphere of Central East India, Environmental Science and Pollution Research, ESPR-D-20-09979, https://doi.org/10.1007/s11356-021-14606-x.
  24. Ambade, B., Sankar, T. K., Sahu L.K., Gautam, S. and Gautam, A.S. (2021), Comparison of emission profile of black carbon and carbon monoxide over Eastern India: source apportionment and health risk impact, Research Square, DOI: https://doi.org/10.21203/rs.3.rs-388630/v1.
  25. Tripathi, N., Sahu L.K., Singh, A., Yadav, R., Patel, A., Patel, K., and Meenu P. (2020), Elevated levels of biogenic nonmethane hydrocarbons in the marine boundary layer of the Arabian Sea during the intermonsoon, Journal of Geophysical Research: Atmospheres, 125, e2020JD032869. https://doi.org/10.1029/2020JD032869.
  26. Sahu, L. K., Yadav, R., & Tripathi, N. (2020), Aromatic compounds in a semi-urban site of western India: Seasonal variability and emission ratios. Atmospheric Research, 105114. https://doi.org/10.1016/j.atmosres.2020.105114
  27. Sahu, L. K., Tripathi, N., & Yadav, R. (2020), Observations of trace gases in the earth's lower atmosphere: instrumentation and platform. Current Science, 118(12), 1893. doi:10.18520/cs/v118/i12/1893-1902
  28. Tripathi, N., & Sahu, L. K. (2020), Emissions and atmospheric concentrations of a-pinene at an urban site of India: Role of changes in meteorology. Chemosphere, 127071. https://doi.org/10.1016/j.chemosphere.2020.127071.
  29. Tripathi, N., Sahu, L. K., Singh, A., Yadav, R., & Karati, K. K. (2020), High levels of isoprene in the marine boundary layer of the Arabian sea during spring inter-monsoon: role of phytoplankton blooms. ACS Earth and Space Chemistry, 4(4), 583-590. https://doi.org/10.1021/acsearthspacechem.9b00325
  30. Dave, P. N., Sahu, L. K., & Tripathi, N. (2020), Emissions of non-methane volatile organic compounds from a landfill site in a major city of India: Impact on local air quality. Heliyon, 6(7): e04537. https://doi.org/10.1016/j.heliyon.2020.e04537
  31. Chutia, L., Ojha, N., Girach, I. A., Pathak, B., Sahu L.K. and Bhuyan, P. K. (2020), Seasonal Evolution of Sulfur Dioxide Over the Indian Subcontinent, URSI Radio Science Letters, Vol., 2, DOI: 10.46620/20-0046.
  32. Stewart, G. J., Acton, W. J. F., Nelson, B. S., Vaughan, A. R., Hopkins, J. R., Arya, R., Mondal, A., Jangirh, R., Ahlawat, S., Yadav, L., Sharma, S. K., Dunmore, R. E., Yunus, S. S. M., Hewitt, C. N., Nemitz, E., Mullinger, N., Gadi, R., Sahu L.K., Tripathi, N., Rickard, A. R., Lee, J. D., Mandal, T. K., and Hamilton, J. F. (2020), Emissions of non-methane volatile organic compounds from combustion of domestic fuels in Delhi, India, Atmos. Chem. Phys., https://doi.org/10.5194/acp-2020-892.
  33. Stewart, G. J., Nelson, B. S., Acton, W. J. F., Vaughan, A. R., Farren, N. J., Hopkins, J. R., Ward, M. W., Swift, S. J., Arya, R., Mondal, A., Jangirh, R., Ahlawat, S., Yadav, L., Sharma, S. K., Yunus, S. S. M., Hewitt, C. N., Nemitz, E., Mullinger, N., Gadi, R., Sahu L.K., Tripathi, N., Rickard, A. R., Lee, J. D., Mandal, T. K., and Hamilton, J. F. (2020), Emissions of intermediate-volatility and semi-volatile organic compounds from domestic fuels used in Delhi, India, Atmos. Chem. Phys., https://doi.org/10.5194/acp-2020-860.
  34. Wang, L., Slowik, J. G., Tripathi, N., Bhattu, D., Rai, P., Kumar, V., Vats, P., Satish, R., Baltensperger, U., Ganguly, D., Rastogi, N., Sahu, L. K., Tripathi, S. N., and Prevot, A. S. H. (2020), Source characterization of volatile organic compounds measured by proton-transfer-reaction time-of-flight mass spectrometers in Delhi, India, Atmos. Chem. Phys., 20, 9753-9770, https://doi.org/10.5194/acp-20-9753-2020
  35. Girach, I. A., Prabha R. Nair, Narendra Ojha, Lokesh K. Sahu (2020), Tropospheric carbon monoxide over the northern Indian Ocean during winter: infuence of inter-continental transport, Climate Dynamics, 54:5049�5064. https://doi.org/10.1007/s00382-020-05269-4
  36. Girach, I. A., Tripathi, N., Nair, P. R., Sahu, L. K., & Ojha, N. (2020), O3 and CO in the South Asian outflow over the Bay of Bengal: Impact of monsoonal dynamics and chemistry. Atmospheric Environment, 117610. https://doi.org/10.1016/j.atmosenv.2020.117610.
  37. Yadav, R., Trivedi, P., Sahu, L. K., Beig, G., Tripathi, N. (2020), Air Pollution Modeling, Air Pollution and Environmental Health, 20, p.37.
  38. Yadav, R., Sahu, L. K., Nidhi Tripathi, D Pal, G Beig, SNA Jaaffrey (2019), Investigation of emission characteristics of NMVOCs over urban site of western India, Environmental Pollution, 252, 245-255, https://doi.org/10.1016/j.envpol.2019.05.089.
  39. Lakhima Chutia, Narendra Ojha, Imran A Girach, Sahu, L. K., Leonardo MA Alvarado, John P Burrows, Binita Pathak, and Pradip Kumar Bhuyan (2019), Distribution of volatile organic compounds over Indian subcontinent during winter: WRF-chem simulation versus observations, 252, 256-269, https://doi.org/10.1016/j.envpol.2019.05.097.
  40. Sahu, L. K., Nidhi Tripathi, Varun Sheel, and N. Ojha (2019), Influences of local meteorology and convection on carbon monoxide distribution over Chennai, Journal of Earth System Science, 128 (5): 119. https://doi.org/10.1007/s12040-019-1156-z.
  41. Yadav Ravi, Sahu, L. K., G. Beig, Nidhi Tripathi, Sujit Maji, and S.N.A. Jaaffrey (2019), The role of local meteorology on ambient particulate and gaseous species at an urban site of western India, Urban Climate, 28, https://doi.org/10.1016/j.uclim.2019.01.003.
  42. Sinha P.R., N. Nagendra, R. K. Manchanda, D. K. Ojha, B. Suneel Kumar, S. K. Koli, D. B. Trivedi, R. K. Lodha, Sahu, L. K., and S. Sreenivasan (2019), Development of balloon-borne Impactor payload for profiling free tropospheric aerosol, Aerosol Science and Technology, 53, 231-243, https://doi.org/10.1080/02786826.2018.1546045.
  43. Sahu, L. K., Nidhi Tripathi, Varun Sheel, M. Kajino, M. Deushi, Ravi Yadav, and P. Nedelec (2018), Impact of the tropical cyclone "Nilam" on the vertical distribution of carbon monoxide over Chennai on the Indian peninsula, Quarterly Journal of the Royal Meteorological Society, 144:1091�1105, https://doi.org/10.1002/qj.3276.
  44. Singh V. K. Ravindra, Sahu, L. K., and R. Sokhi (2018), Trends of atmospheric black carbon concentration over the United Kingdom, Atmospheric Environment, 178, 148-157, https://doi.org/10.1016/j.atmosenv.2018.01.030.
  45. Sahu L. K., Varun Sheel, M. Kajino, M. Deushi, Sachin S. Gunthe, P. R. Sinha, Ravi Yadav, Devendra Pal, P. Nedelec, Valerie Thouret, and Herman G. Smit (2017), Impact of tropical convection and ENSO variability in vertical distributions of CO and O3 over an urban site of India, Climate Dynamics, 49, 1-2, 449-469, doi:10.1007/s00382-016-3353-7.
  46. Sahu L.K., Nidhi Tripathi, and Ravi Yadav (2017), Contribution of biogenic and photochemical sources to ambient VOCs during winter to summer transition at a semi-arid urban site in India, Environmental Pollution, http://dx.doi.org/10.1016/j.envpol.2017.06.091.
  47. Yadav R., L. K. Sahu, G. Beig, Nidhi Tripathi, S.N.A. Jaaffrey (2017), Ambient particulate matter and carbon monoxide at an urban site of India: Influence of anthropogenic emissions and dust storms, Environmental Pollution, 225, 291-303, doi: 10.1016/j.envpol.2017.01.038.
  48. Chaithanya D. Jain, Harish S. Gadhavi, Lokesh K. Sahu and A. Jayaraman (2017), Volatile organic compounds (VOCs) in the air, their importance and measurements, Earth Science India, Earth Science India, 10(II), 1-15.
  49. Priyamvada H., M. Akila, R. K. Singh, R. Ravikrishna, R. S. Verma, L. Philip, R. R. Marathe, L. K. Sahu, K. P. Sudheer, and S. S. Gunthe (2017), Terrestrial Macrofungal Diversity from the Tropical Dry Evergreen Biome of Southern India and Its Potential Role in Aerobiology. PLoS ONE 12(1): e0169333. doi:10.1371/journal.pone.0169333.
  50. Sheel V., Jagat H. Bisht, Lokesh Sahu, and V. Thouret (2016), Spatio-temporal variability of CO and O3 over a site in central India based on MOZAIC observations and WRF/Chem and MOZART-4 models, Tellus B, 68, 30545, http://dx.doi.org/10.3402/tellusb.v68.30545.
  51. Sahu L. K., Devendra Pal, Ravi Yadav, Jaalnyam Munkhtur (2016), Aromatic VOCs at Major Road Junctions of a Metropolis in India: Measurements Using TD-GC-FID and PTR-TOF-MS Instruments, Aerosol Air Qua. Res., 16, 2405-2420, doi: 10.4209/aaqr.2015.11.0643.
  52. Sahu, L. K., R. Yadav, and D. Pal (2016), Source identification of VOCs at an urban site of western India: Effect of marathon events and anthropogenic emissions, J. Geophys. Res. Atmos., 121, doi:10.1002/2015JD024454.
  53. Yadav, R., L. K. Sahu, G. Beig, S.N.A. Jaaffrey (2016), Role of long-range transport and local meteorology in seasonal variation of surface ozone and its precursors at an urban site of India, Atmos. Res., 10.1016/j.atmosres.2016.02.018.
  54. Sinha P. R., L. K. Sahu, R. K. Manchanda, V. Sheel, M. Deushi, M. Kajino, M. G. Schultz, N. Nagendra, P. Kumar, D. B. Trivedi, S. K. Koli, S. K. Peshin, Y. V. Swamy, C. G. Tzanis, S. Sreenivasan (2016), Transport of Tropospheric and Stratospheric Ozone over India: Balloon-borne Observations and Modeling Analysis, Atmos. Environ., doi:10.1016/j.atmosenv.2016.02.001.
  55. Alvarado, M. J., C. R. Lonsdale, H. L. Macintyre, H. Bian, M. Chin, D. A. Ridley, C. L. Heald, K. L. Thornhill, B. E. Anderson, M. J. Cubison, J. L. Jimenez, Y. Kondo, L. K. Sahu, J. E. Dibb, and C. Wang (2016), Evaluating Model Parameterizations of Submicron Aerosol Scattering and Absorption with In Situ Data from ARCTAS 2008, Atmos. Chem. Phys. Discuss., doi:10.5194/acp-2015-935.
  56. Gunthe, S. S., G. Beig, and L. K. Sahu (2016), Study of relationship between daily maxima in ozone and temperature in an urban site of India , Current Science, 110 (10). pp. 1994-1999.
  57. Sahu, L. K., and P. Saxena (2015), High time and mass resolved PTR-TOF-MS measurements of VOCs at an urban site of India during winter: role of anthropogenic, biomass burning, biogenic and photochemical sources, Atmos. Res., 164, 84-94.
  58. Sahu, L. K., V. Sheel, K. Pandey, R. Yadav, P. Saxena, S. S. Gunthe (2015), Regional biomass burning trends in India: Analysis of satellite fire data. J. Earth Sys. Sci. 124, 1377-1387.
  59. Aswathy, E. V., H. Priyamvada, R. Ravikrishna, V. R. Despres, C. V. Biju, L. K. Sahu, A. Kumar, R. S. Verma, L. Philip, S. S. Gunthe (2015), Morphological characteristics of bioaerosols from contrasting locations in southern tropical India-A case study, Atmos. Environ., 122, 321-331, doi:10.1016/j.atmosenv.2015.09.071.
  60. Sinha, P. R., P. Gupta, D. G. Kaskaoutis, L. K. Sahu, N. Nagendra, R. K. Manchanda, Y. B. Kumar, S. Sreenivasan (2015), Estimation of particulate matter from satellite and ground-based observations over Hyderabad, India, Int. J. Remote Sens., 36, 6192-6213.
  61. Sheel, V., L. K. Sahu, M. Kajino, M. Deushi, O. Stein, P. Nedelec (2014), Seasonal and inter-annual variability of carbon monoxide based on MOZAIC observations, MACC reanalysis and model simulations over an urban site in India, J. Geophys. Res., 2013JD021425, doi: 10.1002/2013JD021425.
  62. Yadav, R., L. K. Sahu, S. N. A. Jaaffrey, G. Beig (2014), Distributions of ozone and related trace gases at an urban site in western India, J. Atmos. Chem., 71(2), 125-144, doi: 10.1007/s10874-014-9286-9.
  63. Kanawade, V. P., S. Shika, C. Pohlker, D. Rose, M. N. S. Suman, H. Gadhavi, A. Kumar, S. M. Shiva Nagendra, R. Ravikrishna, H. Yu, L. K. Sahu, A. Jayaraman, M. O. Andreae, U. P�schl, S. S. Gunthe (2014), Infrequent occurrence of new particle formation at a semi-rural location, Gadanki, in tropical Southern India, Atmos. Environ., 94, 264-273, http://dx.doi.org/10.1016/j.atmosenv.2014.05.046.
  64. Pandey K. and Sahu, L. K., Emissions of volatile organic compounds from biomass burning sources and their ozone formation potential over India, Current Science, VOL. 106, pages 270-279, 2014.
  65. Ravi Yadav, Sahu, L. K., S.N.A. Jaaffrey, G. Beig (2014), Temporal Variation of Particulate Matter (PM) and Potential Sources at an Urban Site of Udaipur in Western India, Aerosol and Air Quality Research, doi: 10.4209/aaqr.2013.10.0310.
  66. Sahu, L. K., V. Sheel, M. Kajino, M. Deushi, S. S. Gunthe, P. R. Sinha, B. Sauvage, V. Thouret, and H. G. Smit (2014), Seasonal and interannual variability of tropospheric ozone over an urban site in India: A study based on MOZAIC and CCM vertical profiles over Hyderabad, J. Geophys. Res. Atmos., 119, 3615-3641, doi:10.1002/2013JD021215.
  67. Sahu, L. K., Sheel V. (2013), Spatio-temporal variation of biomass burning sources over South and Southeast Asia. Journal of Atmospheric Chemistry, 1-19, 10.1007/s10874-013-9275-4.
  68. Sahu, L. K. (2013), Reactive halogens and their measurements in the troposphere, Indian Journal of Marine Sciences, in press.
  69. Sahu, L. K., V. Sheel, M. Kajino, S. S. Gunthe, V. Thouret, P. Nedelec, and H. G. Smit (2013), Characteristics of tropospheric ozone variability over an urban site in Southeast Asia: A study based on MOZAIC and MOZART vertical profiles, Journal of Geophysical Research D: Atmospheres, 118, doi:10.1002/jgrd.50662.
  70. Sahu, L. K., Varun Sheel, M. Kajino, P. Nedelec., (2013), Variability in tropospheric carbon monoxide over an urban site in Southeast Asia, Atmospheric Environment, 68, Pages 243-255, 2013.
  71. Sahu, L. K., Y. Kondo, N. Moteki, N. Takegawa, Y. Zhao, M. J. Cubison, J.-L. Jimenez, S. Vay, G. S. Diskin, A. Wisthaler, T. Mikoviny, L. G. Huey, A. J. J. Weinheimer, and D. Knapp (2012), Emission characteristics of black carbon in anthropogenic and biomass burning plumes over California during ARCTAS-CARB 2008. Journal of Geophysical Research D: Atmospheres, doi:10.1029/2011JD017401.
    72. Geophysical Research D: Atmospheres, 117, D16302, doi:10.1029/2011JD017401.
  72. Kanaya, Y., F. Taketani, Y. Komazaki, X. Liu, Y. Kondo, L. K. Sahu, H. Irie, H. Takashima, (2012), Comparison of black carbon mass concentrations observed by multi-angle absorption photometer (MAAP) and continuous soot-monitoring system (COSMOS) on Fukue Island and in Tokyo, Japan, Aerosol Science and Technology, 47(1), 1-10, DOI:10.1080/02786826.2012.716551.
  73. Sahu, L. K. (2012), Volatile organic compounds and their measurements in the troposphere, Current Science, 102(10), 1645-1649.
  74. Lal, S., Sahu, L. K., Venkataramani, S., Mallik, C. (2012), Light non-methane hydrocarbons at two sites in the Indo-Gangetic plain. Journal of Environmental Monitoring, 14(4), 1159-1166, DOI: 10.1039/C2EM10682E.
  75. Kondo, Y., Ram, K., Takegawa, N., Sahu, L., Morino, Y., Liu, X., Ohara, T. (2012), Reduction of black carbon aerosols in Tokyo: Comparison of real-time observations with emission estimates. Atmospheric Environment, 54, 242-249, doi:10.1016/j.atmosenv.2012.02.003.
  76. Sahu, L. K., Lal, S., Venkataramani, S. (2011), Seasonality in the latitudinal distributions of NMHCs over Bay of Bengal. Atmospheric Environment, 45(14), 2356-2366, doi: 10.1016/j.atmosenv.2011.02.021.
  77. Matsui, H., Kondo, Y., Moteki, N., Takegawa, N., Sahu, L.K., Koike, M., Zhao, Y., Fuelberg, H.E., Sessions, W.R., Diskin, G., Anderson, B.E., Blake, D.R., Wisthaler, A., Cubison, M.J., Jimenez, J.L. (2011), Accumulation-mode aerosol number concentrations in the arctic during the ARCTAS aircraft campaign: Long-range transport of polluted and clean air from the Asian continent. Journal of Geophysical Research D: Atmospheres, 116(20), D20217, doi:10.1029/2011JD016189.
  78. Matsui, H., Kondo, Y., Moteki, N., Takegawa, N., Sahu, L.K., Zhao, Y., Fuelberg, H.E., Sessions, W.R., Diskin, G., Blake, D.R., Wisthaler, A., Koike, M. (2011), Seasonal variation of the transport of black carbon aerosol from the Asian continent to the arctic during the ARCTAS aircraft campaign. Journal of Geophysical Research D: Atmospheres, 116(5), D05202, doi:10.1029/2010JD015067.
  79. Sahu, L. K., Kondo, Y., Miyazaki, Y., Pongkiatkul, P., Kim Oanh, N. T. (2011), Seasonal and diurnal variations of black carbon and organic carbon aerosols in Bangkok. Journal of Geophysical Research D: Atmospheres, 116(15), D15302, doi:10.1029/2010JD015563.
  80. Verma, R.L., Kondo, Y., Oshima, N., Matsui, H., Kita, K., Sahu, L.K., Kato, S., Kajii, Y., Takami, A., Miyakawa, T. (2011), Seasonal variations of the transport of black carbon and carbon monoxide from the asian continent to the western pacific in the boundary layer. Journal of Geophysical Research D: Atmospheres, 116(21), D21307, doi:10.1029/2011JD015830.
  81. Kondo, Y., Matsui, H., Moteki, N., Sahu, L., Takegawa, N., Kajino, M., Zhao, Y., Cubison, M.J., Jimenez, J.L., Vay, S., Diskin, G.S., Anderson, B., Wisthaler, A., Mikoviny, T., Fuelberg, H.E., Blake, D.R., Huey, G., Weinheimer, A.J., Knapp, D.J., Brune, W.H. (2011), Emissions of black carbon, organic, and inorganic aerosols from biomass burning in North America and Asia in 2008. Journal of Geophysical Research D: Atmospheres, 116(8), D08204, doi:10.1029/2010JD015152.
  82. McNaughton, C.S., Clarke, A.D., Freitag, S., Kapustin, V.N., Kondo, Y., Moteki, N., Sahu, L., Takegawa, N., Schwarz, J.P., Spackman, J.R., Watts, L., Diskin, G., Podolske, J., Holloway, J.S., Wisthaler, A., Mikoviny, T., de Gouw, J., Warneke, C., Jimenez, J., Cubison, M., Howell, S.G., Middlebrook, A., Bahreini, R., Anderson, B.E., Winstead, E., Thornhill, K.L., Lack, D., Cozic, J., Brock, C.A. (2011), Absorbing aerosol in the troposphere of the western arctic during the 2008 ARCTAS/ARCPAC airborne field campaigns. Atmospheric Chemistry and Physics, 11(15), 7561-7582, doi:10.5194/acp-11-7561-2011.
  83. Sahu, L. K., Lal, S., Thouret, V., Smit, H. G. (2011), Climatology of tropospheric ozone and water vapour over Chennai: A study based on MOZAIC measurements over India. International Journal of Climatology, 31(6), 920-936, DOI: 10.1002/joc.2128.
  84. Kondo, Y., Sahu, L., Moteki, N., Khan, F., Takegawa, N., Liu, X., Koike, M., Miyakawa, T. (2011), Consistency and traceability of black carbon measurements made by laser-induced incandescence, thermal-optical transmittance, and filter-based photo-absorption techniques. Aerosol Science and Technology, 45(2), 295-312, DOI:10.1080/02786826.2010.533215.
  85. Koch, D., Schulz, M., Kinne, S., McNaughton, C., Spackman, J.R., Balkanski, Y., Bauer, S., Berntsen, T., Bond, T.C., Boucher, O., Chin, M., Clarke, A., De Luca, N., Dentener, F., Diehl, T., Dubovik, O., Easter, R., Fahey, D.W., Feichter, J., Fillmore, D., Freitag, S., Ghan, S., Ginoux, P., Gong, S., Horowitz, L., Iversen, T., Kirkev, aring, g, A., Klimont, Z., Kondo, Y., Krol, M., Liu, X., Miller, R., Montanaro, V., Moteki, N., Myhre, G., Penner, J.E., Perlwitz, J., Pitari, G., Reddy, S., Sahu, L., Sakamoto, H., Schuster, G., Schwarz, J.P., Seland, A., Stier, P., Takegawa, N., Takemura, T., Textor, C., van Aardenne, J.A., Zhao, Y., (2010), Corrigendum to "Evaluation of black carbon estimations in global aerosol models (atmospheric chemistry and physics (2009) 9 (9001-9026)). Atmospheric Chemistry and Physics, 10(1), 79-81, doi:10.5194/acp-10-79-2010.
  86. Sahu, L. K., Lal, S., & Venkataramani, S. (2010), Impact of monsoon circulations on oceanic emissions of light alkenes over Bay of Bengal. Global Biogeochemical Cycles, 24(4), GB4028, doi:10.1029/2009GB003766.
  87. Nakayama, T., Kondo, Y., Moteki, N., Sahu, L. K., Kinase, T., Kita, K., Matsumi, Y. (2010), Size-dependent correction factors for absorption measurements using filter-based photometers: PSAP and COSMOS. Journal of Aerosol Science, 41(4), 333-343, doi:10.1016/j.jaerosci.2010.01.004.
  88. Verma, R.L., Sahu, L.K., Kondo, Y., Takegawa, N., Han, S., Jung, J.S., Kim, Y.J., Fan, S., Sugimoto, N., Shammaa, M.H., Zhang, Y.H., Zhao, Y. (2010), Temporal variations of black carbon in Guangzhou, china, in summer 2006. Atmospheric Chemistry and Physics, 10(14), 6471-6485, doi:10.5194/acp-10-6471-2010.
  89. Moteki, N., Kondo, Y., Nakayama, T., Kita, K., Sahu, L.K., Ishigai, T., Kinase, T., Matsumi, Y. (2010), Radiative transfer modeling of filter-based measurements of light absorption by particles: Importance of particle size dependent penetration depth. Journal of Aerosol Science, 41(4), 401-412, doi:10.1016/j.jaerosci.2010.02.002.
  90. Sahu, L. K., Lal, S., Thouret, V., Smit, H. G. (2009), Seasonality of tropospheric ozone and water vapor over Delhi, India: A study based on MOZAIC measurement data. Journal of Atmospheric Chemistry, 62(2), 151-174, DOI: 10.1007/s10874-010-9146-1.
  91. Koch, D., Schulz, M., Kinne, S., McNaughton, C., Spackman, J.R., Balkanski, Y., Bauer, S., Berntsen, T., Bond, T.C., Boucher, O., Chin, M., Clarke, A., De Luca, N., Dentener, F., Diehl, T., Dubovik, O., Easter, R., Fahey, D.W., Feichter, J., Fillmore, D., Freitag, S., Ghan, S., Ginoux, P., Gong, S., Horowitz, L., Iversen, T., Kirkev, aring, g, A., Klimont, Z., Kondo, Y., Krol, M., Liu, X., Miller, R., Montanaro, V., Moteki, N., Myhre, G., Penner, J.E., Perlwitz, J., Pitari, G., Reddy, S., Sahu, L., Sakamoto, H., Schuster, G., Schwarz, J.P., Seland, �., Stier, P., Takegawa, N., Takemura, T., Textor, C., van Aardenne, J.A., Zhao, Y., (2009), Evaluation of black carbon estimations in global aerosol models. Atmospheric Chemistry and Physics, 9(22), 9001-9026, doi:10.5194/acp-9-9001-2009.
  92. Sahu, L.K., Kondo, Y., Miyazaki, Y., Kuwata, M., Koike, M., Takegawa, N., Tanimoto, H., Matsueda, H., Yoon, S.C., Kim, Y.J. (2009), Anthropogenic aerosols observed in Asian continental outflow at Jeju Island, Korea, in spring 2005. Journal of Geophysical Research D: Atmospheres, 114(3), D03301.
  93. Kondo, Y., Sahu, L. K., Kuwata, M., Miyazaki, Y., Takegawa, N., Moteki, N., Imaru, J., Han, S., Nakayama, T., Oanh, N. T. Kim, Hu, M., Kim, Y. J. Kita, K. (2009), Stabilization of the mass absorption cross section of black carbon for filter-based absorption photometry by the use of a heated inlet. Aerosol Science and Technology, 43(8), 741-756, DOI:10.1080/02786820902889879.
  94. Lal, S., Sahu, L. K., Venkataramani, S., Rajesh, T. A., Modh, K. S. (2008), Distributions of O3, CO and NMHCs over the rural sites in central India. Journal of Atmospheric Chemistry, 61(1), 73-84, DOI:10.1007/s10874-008-9115-0.
  95. Lal, S., Sahu, L. K., Gupta, S., Srivastava, S., Modh, K. S., Venkataramani, S., Rajesh, T. A. (2008), Emission characteristic of ozone related trace gases at a semi-urban site in the Indo-Gangetic plain using inter-correlations. Journal of Atmospheric Chemistry, 60(3), 189-204, doi: 10.1007/s10874-008-9115-0.
  96. Shiraiwa, M., Kondo, Y., Moteki, N., Takegawa, N., Sahu, L.K., Takami, A., Hatakeyama, S., Yonemura, S., Blake, D.R. (2008), Radiative impact of mixing state of black carbon aerosol in Asian outflow. Journal of Geophysical Research D: Atmospheres, 113(24), D24210, doi:10.1029/2008JD010546.
  97. Miyazaki, Y., Kondo, Y., Sahu, L. K., Imaru, J., Fukushima, N., & Kano, M. (2008), Performance of a newly designed continuous soot monitoring system (COSMOS). Journal of Environmental Monitoring, 10(10), 1195-1201, DOI: 10.1039/B806957C.
  98. Lal, S., Sahu, L. K., Venkataramani, S. (2007), Impact of transport from the surrounding continental regions on the distributions of ozone and related trace gases over the Bay of Bengal during February 2003. Journal of Geophysical Research D: Atmospheres, 112(14), D14302, doi:10.1029/2006JD008023.
  99. Sahu, L. K., Lal, S. (2006), Characterization of C2-C4 NMHCs distributions at a high altitude tropical site in India. Journal of Atmospheric Chemistry, 54(2), 161-175, DOI: 10.1007/s10874-006-9023-0.
  100. Sahu, L. K., Lal, S., & Venkataramani, S. (2006), Distributions of O3, CO and hydrocarbons over the bay of bengal: A study to assess the role of transport from southern India and marine regions during September-October 2002. Atmospheric Environment, 40(24), 4633-4645, DOI:10.1016/j.atmosenv.2006.02.037.
  101. Sahu, L. K., Lal, S. (2006), Changes in surface ozone levels due to convective downdrafts over the Bay of Bengal. Geophysical Research Letters, 33(10), L10807, doi:10.1029/2006GL025994.
  102. Lal, S., Chand, D., Sahu, L. K., Venkataramani, S., Brasseur, G., Schultz, M. G. (2006), High levels of ozone and related gases over the Bay of Bengal during winter and early spring of 2001. Atmospheric Environment, 40(9), 1633-1644, doi: 10.1016/j.atmosenv.2005.10.060.
  103. Sahu, L. K., Lal, S. (2006), Distributions of C2-C5 NMHCs and related trace gases at a tropical urban site in India. Atmospheric Environment, 40(5), 880-891, DOI:10.1016/j.atmosenv.2005.10.021.
  104. Naja, M., Chand, D., Sahu, L., Lal, S. (2004), Trace gases over marine regions around India. Indian Journal of Marine Sciences, 33(1), 95-106.