• Faculty Adviser, MAITRI, the Indian Graduate Student Association, NC State, 2018 to present
  • Member, The Washington Post Advisory Panel
  • Member, UNC GA- India Summit Steering Committee, 2013-present
  • Member, Air and Waste Management Association Publication Committee, 2010-2013
  • Member, Reader Advisory Panel of the International Journal Nature, 2008-2010
  • Member, Isle Royale National Park Research Panel, 2008-09
  • Chair, Steering Committee, Workshop on Agricultural Air Quality: State of the Science, 2005-2007
  • Member, North Carolina State University India Advisory Group Committee, 2007-2010
  • Member, Triangle Tomorrow’s Triangle Region Air Quality Coalition, 2005-present
  • Member, US Department of Agriculture Task Force on Agricultural Air Quality Subcommittees on Emission; Confined Animal Feeding Operations; and Research, 2000-2006
  • Member, Battelle Technical Council, 2001-2003
  • Chair, Oak Ridge National Laboratory – NCSU Environmental Sciences Committee, 2001
  • Member, Area, Fugitive and Natural Sources Committee, Air & Waste Management Association, 2001-present
  • NASA Tech Brief Reader Advisory Panel, 2000-present
  • Member, US EPA’s Accessing the Consequences of Global Change for Air Quality Peer Review Panel, 2002
  • Chair, North Carolina State University Standing Committee O. Max Gardner Award, 2000-2001
  • Member, Technical Committee, American Institute of Hydrology International Conference, 2000
  • Member, Advisory Team, International Workshop on Atmospheric Transport and Air-Surface Exchange of Environmental Contaminants in North America, 2000
  • Member, Organizing Committee, International Workshop on Future Directions in Air Quality Research, 2000-2001
  • Member, North Carolina Nutrient Efficiency Rule Advisory Group, 2000
  • Member, US EPA’s STAR Fellowships Peer Review Panel, 2000
  • Member, Water Resources Research Institute of The University of North Carolina Technical Committee, 1998-2002
  • Member, North Carolina State University Standing Committee on O. Max Gardner Award, 1998-2001
  • Member, Board of Directors, State Employees Credit Union, NCSU Advisory Board, 1998-2002
  • Member, North Carolina State University, Environmental Technology Curriculum, 1999
  • Member, US EPA’s Exploratory Engineering Peer Review Panel, 1999
  • Member, US EPA’s Air Pollution Chemistry and Physics Peer Review Panel, 1998
  • Chair, Scientific Advisory Committee, North Carolina Workshop on Atmospheric Nitrogen Compounds, 1997
  • Member, U.S. EPA’s Tropospheric Ozone and Fine Particulates Peer Review Panel, 1997
  • Science Team Leader, State of North Carolina Department of Environment and Natural Resources Program “Atmospheric Nitrogen Compounds”, 1996-present
  • North Carolina State University Merit Awards Program, 1996-present
  • Member, Atmospheric Nitrogen Emissions and Depositions Group, NC Department of Environmental, Health, and Natural Resources, 1996-present
  • Member, Ozone Transport Assessment Group (OTAG), Air Quality Analysis, 1996-1998
  • Program Advisory Committee, International Conference on Atmospheric Ammonia, Oxford, England, 1995
  • Science-Team Member, North American Research Strategy on Tropospheric Ozone (NARSTO), 1995-present
  • Steering Committee, “SCI-LINK/GLOBE-NET” Programs, 1995
  • Institute of Professional Environmental Practice, Qualified Environmental Professional Exam Advisory Committee, 1994-present
  • Scientific and Technical Advisory Committee, Chesapeake Bay Program, 1994
  • NCSU Outreach and Extension Strategic Planning, 1994
  • Qualified Environmental Professional, IPEP, Chair, Examination Panels, 1993-present
  • Technical Program Committee, International Symposium on Measurement of Toxic and Related Air Pollutants, 1993
  • Technical Program Committee, International Conference on Regional Photochemical Measurement & Modeling Studies, 1993
  • Publications Committee, Air and Waste Management Association, 1992-1995
  • Member, Technical Advisory Committee, N.C. Environmental Defense Fund, 1992-1994
  • Urban Airshed Model Technical Committee, State of North Carolina, 1992-1994
  • International Hydrocarbon Intercomparison (IHIC) Committee, 1991-2000
  • Forest Protection, North Carolina Agricultural Research Service, 1991
  • NASA panel for the selection of NASA Specialized Center for Research and Training, 1990
  • Site Director, Southern Oxidants Study NCSU Site SONIA, 1991-1995
  • U.S. Environmental Protection Agency Management Assistance Review, 1988
  • Southern Oxidant Study Consortium, 1988-present
  • The Southeastern Regional Oxidant Network Steering Committee, 1988-present
  • The Southern Oxidants Research Program on Ozone Non-Attainment Executive Committee, 1990-1993
  • The Air and Waste Management Association Committee on Global Environmental Management, 1989-1991
  • NC Gaston County Quality Natural Resources Committee, 1989-1991
  • MEAS Electronics Technician Search Committee, Chairman, 1988
  • MEAS Technical Services Committee, 1988-1990
  • Chairman, MEAS Outreach Committee, 1990 – 1993, 1999-2001
  • MEAS Seminar Committee, 1993-1994
  • MEAS Laboratory Safety Committee, 1993-present
  • MEAS Graduate Course Action Committee, 2000-present
  • MEAS Space Committee, 2001-2002
  • MEAS Air Quality Faculty Search Committee, 2002-2003
  • Chair, MEAS Physical Meteorology Faculty Search Committee, 2005-2006
  • College of Physical and Mathematical Sciences, PAMS, Reappointment, Promotion, and Tenure Advisory Committee, 2006-2008