Mr. George Allen is the Chief Scientist at NESCAUM, an interagency association of the eight Northeastern States. Mr. Allen is responsible for monitoring and exposure assessment activities across a range of wide range of air topics, including regional haze, air toxics, on and off-road diesel, wood smoke, and continuous aerosol measurement technologies. He served on the chartered U.S. EPA Clean Air Scientific Advisory Committee (CASAC) from 2010 to 2016, has been a member of several CASAC review panels since 2004 including the disbanded 2016 CASAC PM panel and the 2022 CASAC panels for reconsideration of the PM and Ozone NAAQS. He is the author or co-author of more than 50 peer-reviewed journal papers on development and evaluation of measurement methods, exposure assessment, and air pollution health effects. Before joining NESCAUM in 2002, Mr. Allen was on the professional staff at the Harvard School of Public Health (HSPH) in Boston for more than 20 years, working on a wide range of EPA and National Institutes of Health- funded air pollution studies. While at HSPH, he developed several new techniques for real-time aerosol measurements.

Dr. Andrea L. Clements is a physical scientist with the U.S. Environmental Protection Agency’s (USEPA) Office of State Air Partnerships (OSAP), located in Research Triangle Park, North Carolina. Andrea leads efforts to evaluate sensor performance, test the usability of sensors for a variety of applications, summarize best practices, and develop resources that educate and guide others in the most effective use of sensors and the data they produce. Andrea is also the EPA Point of Contact for the USEPA/U.S. Forest Service AirNow Fire and Smoke Map which provides near real-time air quality, fire locations, satellite detected smoke plumes, and smoke outlooks along with health protective messaging to help users minimize poor air quality exposure. Additionally, she supports the Reference and Equivalent Methods Program. She holds a Ph.D. in Civil and Environmental Engineering from Rice University in Houston, Texas, and has degrees in Environmental Science and Engineering (M.S., Caltech), Chemical Engineering (B.S., Washington University in St. Louis), and Mathematics (B.A., Cornell College).

Swagata Dey is a New Delhi-based researcher working on the thematic areas of air pollution, monitoring, clean transportation and sustainability. She currently leads the Air Quality Policy and Outreach team in the Air Quality Sector at Center for Study of Science, Technology and Policy (CSTEP). She works on developing sectoral emission inventories, designing mitigation measures for state and city governments, backed by air quality modelling and observations. Previously, she led a program at Environmental Defense Fund, India, wherein she helped city governments create actionable strategies for addressing air pollution hotspots. She works on air quality sensors, applications in city level monitoring and creating actionable insights from the data, emission inventory and super pollutants. She works towards scaling up solutions from academia to be inducted into public policy. Previously, she was the deputy program manager for Clean Air at Centre for Science and Environment, New Delhi. She worked on developing clean air action plans for five Indian states. She conducted audits for the current PUC system to help cities manage transport emissions. Prior to this, she spent several years in academics in the United States at Oregon State University and Ohio State University. Swagata serves on multiple committees including the Supreme Court Expert Committee for Air Pollution in Delhi under the Commission of Air Quality Management (CAQM). Swagata has a keen interest in science communication and has been a regular contributor to Down to Earth, The Hindu, and TerraGreen. She has authored book chapters on sustainability and has published several reports and scientific papers. She is the recipient of University Fellowship at Ohio State University and was a community service leader for Association for India’s development, Columbus Chapter. Swagata completed her bachelor’s in Chemistry (with honors) from Miranda House, a masters in Environment Science from TERI University and another research-based MS from the Ohio State University, USA.

Achim Haug is the Founder and CEO of AirGradient, a social impact company working to make reliable air quality monitoring more accessible, transparent, and actionable. He founded AirGradient in 2019 after witnessing the severe impacts of seasonal air pollution in Northern Thailand. Under his leadership, AirGradient develops affordable, open-source air quality monitors for community, educational, research, and professional applications. The company publishes its hardware designs, firmware, and software openly and supports a global community of more than 60,000 users across over 80 countries. Achim’s work focuses on improving trust in lower-cost sensor technologies through open source designs, open data, field validation, and collaboration with researchers, public agencies, and community organizations. AirGradient works with small grassroots organizations as well as large international partners, including UNICEF, UNDP, and C40, with a strong emphasis on capacity building, local ownership, and the responsible use of air quality data. Through AirGradient and the Open Air Foundation, Achim also supports monitoring initiatives in underserved and highly polluted communities, helping local partners understand sensor capabilities and limitations and translate air quality measurements into practical action.

This Advisory Board position is an annually-rotating seat for a sensor vendor. Inclusion of a sensor vendor on the AQ-SPEC Advisory Board is for inclusiveness of all perspectives in the sensor community and does not constitute the endorsement of a commercial product by South Coast AQMD.

Dr. Jorn Herner is Chief of the Emissions and Remote Sensing Research Branch in the Research Division at the California Air Resources Board. He oversees the implementation of the state’s greenhouse gas monitoring network, the vehicle emissions research program, the use of remote sensing and new measurement methods to quantify pollutants and develop new mitigation strategies. This includes the California Satellite Methane Program (CalSMP) and the use of inverse modeling and other satellite-based data. Jorn has a B.A. and M.S. from the University of California at Berkeley and a Ph.D. in Civil and Environmental Engineering from the University of California, Davis.

Kristin Miller serves as the Associate Director of the Roberts Environmental Center (REC) at Claremont McKenna College. Since 2014, she has led the college's comprehensive sustainability initiatives and directly managed a yearly cohort of 40+ student analysts on environmental research and consulting projects for both public and private sector clients. She assists with student and campus initiatives and hosts major environmental conferences, helping to develop the next generation of environmental leaders.

Dr. Daniel M. Westervelt is an Associate Research Professor (Senior Staff) at Lamont-Doherty Earth Observatory (LDEO) of Columbia University in the City of New York. Dr. Westervelt is also an affiliate faculty member of the Columbia University Data Science Institute, an affiliated scientist with NASA Goddard Institute for Space Studies, and an air pollution advisor to the US State Department. He was awarded the 2024-2025 Faculty Mentorship Award for Columbia University’s Graduate School of Arts and Sciences. His current research spans climate change and atmospheric chemistry and physics using models, air sensors, advanced in-situ instrumentation, and remote sensing, with an emphasis on applications in Low and Middle Income Countries (LMICs). Prior to his faculty position at Lamont-Doherty Earth Observatory, he worked as an Associate Research Scientist at LDEO, and as a Science, Technology, and Environmental Policy (STEP) postdoctoral research associate at Princeton University until 2015. He completed his PhD degree in May 2013 in Civil and Environmental Engineering from Carnegie Mellon University.