A070
Low-cost air quality sensors: challenges, opportunities, and collaborative strategies across the world
Session ID#: 252861
Session Description:
Air pollution remains a major global challenge, disproportionately impacting vulnerable communities. In low- and middle-income countries (LMICs), weak policies, fragmented institutions, and limited monitoring infrastructure hinder effective air quality (AQ)management. Addressing these challenges requires strong local and international collaboration.Accessible and affordable air quality sensors (low-cost sensor systems, LCS) are key tools for building capacity in resource-limited settings.This session will highlight best practices using LCS to enhance AQ monitoring, forecasting,modeling, and public health initiatives. We encourage contributions that propose solutions for sensor quality assurance, uncertainty characterization, and calibration challenges; improve technical skills and data management; integrate sensor data with models and satellite observations; design effective networks; and address logistical hurdles in constrained environments.We also seek studies on the role of sensors in personal exposure and public health research,policies promoting sensor use, citizen engagement in AQ monitoring, as well as sustainable and equitable frameworks for lasting local and international partnerships
Index Terms:
0345 Pollution: urban and regional [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0355 Thermosphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
Primary Convener: Audrey Gaudel, Cooperative Institute for Research in Environmental Sciences and NOAA CSL, Boulder, United States; CIRES, U. of Colorado/ NOAA Chemical Sciences Laboratory, Boulder, United States
Conveners: Colleen Rosales, Openaq, Bloomington, United States, Mohammed I Mead, Imperial College, London, United Kingdom and Sebastian Diez, Universidad del Desarrollo, Santiago, Chile
Neighborhood-scale Monitoring of Hourly PM2.5 and PM10 levels using Low-Cost, Open Hardware Sensors in Utqiaġvik, Alaska. (1851424)
Mirella Shaban, University of Virginia, Department of Environmental Sciences, Charlottesville, VA, United States, Luis FR Murillo, University of Notre Dame, South Bend, United States and Howard E Epstein, University of Virginia, Department of Environmental Sciences, Charlottesville, United States
Reconciling airborne, ground-based, and remote sensing observations of ambient hydrocarbons in southern California (1874769)
Kristen Okorn, Organization Not Listed, Washington, DC, United States and Laura T Iraci, NASA Ames Research Center, Moffett Field, CA, United States
Informing Community-Scale Air Quality Monitoring Through Risk-Aware Optimization of Low-Cost Sensor Networks (1879693)
Dr. Byeongseong Choi, PhD, University of Texas at Arlington, Arlington, TX, United States and Michelle Hummel, University of Texas at Arlington, Civil Engineering, Arlington, TX, United States
Observational Inferences of NOx and CO Emission Factors in Cities Using Dense Urban Monitoring Networks (1880231)
Yishu Zhu1, Milan Patel2, Anna Winter2, Naomi Asimow3 and Ronald C Cohen4, (1)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States, (2)University of California Berkeley, Department of Chemistry, Berkeley, CA, United States, (3)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (4)University of California, Berkeley, Department of Chemistry, Berkeley, United States
Image-Based Extinction Retrieval for Real-Time Visibility Assessment Using Low-Cost Cameras (1881606)
Adam Willitsford, John's Hopkins University Applied Physics Laboratory, Laurel, United States, Parker Coye, John's Hopkins Applied Physics Laboratory, Laurel, United States and Belay Demoz, University of Maryland Baltimore County, Baltimore, United States
Assessment of Air Pollutant Concentrations Near Major Roads in Addis Ababa, Ethiopia (1909242)
Tesfaye Mamo Mekonnen1, Marc Nicholas Fiddler2, Andualem Ayele3, Birbiraw Deresse4, Solomon Bililign5, Melese Ayelign3, Kassahun Ture3 and Eyale Biable3, (1)Addis Ababa University, Physics, Addis Ababa, Ethiopia, (2)North Carolina A & T State University, NOAA-ISET Center, Greensboro, NC, United States, (3)Addis Ababa University, Department of environmental sciences, Addis Ababa, Ethiopia, (4)Addis Ababa University, Institute of Geophysics, Space Sciences and Astronomy, Addis Ababa, Ethiopia, (5)North Carolina A&T State University, Physics, Applied Sciences and Technology, Greensboro, United States
Fine-scale variations in PM 2.5 and black carbon concentrations and chemical composition of total suspended PM in heavy traffic road intersection in Addis Ababa, Ethiopia (1911342)
Andualem Ayele1, Birbiraw Deresse2, Tesfaye Mamo Mekonnen3, Marc Fiddler4, Kassahun Ture1, Eyale Biable1, Jason D Surratt5, Haley Royer6 and Solomon Bililign7, (1)Addis Ababa University, Department of environmental sciences, Addis Ababa, Ethiopia, (2)Addis Ababa University, Institute of Geophysics, Space Sciences and Astronomy, Addis Ababa, Ethiopia, (3)Addis Ababa University, Physics, Addis Ababa, Ethiopia, (4)North Carolina A&T State University, Department of Chemistry, Greensboro, United States, (5)University of North Carolina at Chapel Hill, Department of Environmental Sciences and Engineering, Chapel Hill, United States, (6)University of North Carolina at Chapel Hill, Chapel Hill, United States, (7)North Carolina A&T State University, Physics, Applied Sciences and Technology, Greensboro, United States
A Framework for Interpreting Air Pollution Sensor Data: Bridging Gaps in Monitoring, Analysis and Community Engagement (1925836)
Dorothy Lsoto1, Richard Sserunjogi2, Gabriel Okello3, Yile Chen4, Jonathan A. Patz5 and James J Schauer1, (1)University of Wisconsin Madison, Madison, WI, United States, (2)Makerere University, Department of Computer Science, Kampala, Uganda, (3)University of Cambridge, Institute for Sustainability Leadership, Cambridge, United Kingdom, (4)University of Wisconsin Madison, Nelson Institute For Environmental Studies, Madison, United States, (5)University of Wisconsin–Madison, Center for Sustainability and the Global Environment / Department of Population Health Sciences, Madison, United States
The BEACO2N International Collaboration (1935762)
Anna Winter1, Yishu Zhu2, Naomi Asimow2, Milan Patel1 and Ronald C Cohen3, (1)University of California Berkeley, Department of Chemistry, Berkeley, CA, United States, (2)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (3)University of California Berkeley, Department of Chemistry, Berkeley, United States
Spatial Variation of Low-cost Particle Sensor Calibration Performance using Land Use Regression (1942755)
Md Hasibul Hasan, University of Central Florida, Civil, Environmental & Construction Engineering, Orlando, United States and Haofei Yu, University of Central Florida, Civil, Environmental and Construction Engineering, Orlando, United States
Scalable PM2.5 Forecasting Using Low-Cost Sensor Networks and Transformer-Based Time-Series Foundation Models in India (1948554)
Kirtika Sharma1, Sagnik Dey2, Rijurekha Sen3 and Sachin Chauhan3, (1)Indian Institute of Technology Delhi, School of Interdisciplinary Research, New Delhi, India, (2)Indian Institute of Technology Delhi, Centre for Atmospheric Sciences, New Delhi, India, (3)Indian Institute of Technology Delhi, Department of Computer Science and Engineering, New Delhi, India
Evaluation and Calibration of the C-12 MetOne Black Carbon (BC) Low-Cost Sensors Using Brown and Black Carbon Surrogates (1952332)
Tiberias Okanga, University of Maryland College Park, Department of Chemistry and Biochemistry, College Park, MD, United States, Russell Dickerson, University of Maryland College Park, Atmospheric and Oceanic Sciences, College Park, United States, Akua A Asa-Awuku, University of Maryland College Park, College Park, United States, Xinrong Ren, NOAA, Air Resources Laboratory, College Park, United States, Phillip Stratton, NOAA Air Resources Laboratory; Department of Atmospheric and Oceanic Science, University of Maryland, College Park, United States and Stephanie Jacoby, University of Maryland College Park, Chemistry, College Park, United States
Uncertainty-Aware Calibration of Low-Cost PM2.5 Sensors Using Deep Learning Approaches (1956091)
Kaylee Smith, University of Michigan Ann Arbor, Ann Arbor, MI, United States, Anusha Srirenganathan Malarvizhi, George Mason University, Geography and Geoinfomation Science, Fairfax, United States and Chaowei Phil Yang, George Mason Univ., Fairfax, United States
PHOENIX: A Dense Sensor Network for Outdoor PM Monitoring in Altadena, CA after the 2025 Eaton Fire (1970516)
Haroula D Baliaka1, Coleen Roehl2, Nikos Kanakaris3, Manuel de la Torre Juarez4, Merritt C. McDowell2, Isaac N Aguilar2, Théo Tacail2, Francois Tissot5, Thomas E. Morrell2, Vine Blankenship2, Sina Hasheminassab4, Rima Habre6, Nga Lee Ng7, John Seinfeld2, Richard C Flagan2 and Paul O Wennberg2, (1)California Institute of Technology, Pasadena, CA, United States, (2)California Institute of Technology, Pasadena, United States, (3)Amazon Web Services, Seattle, United States, (4)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (5)California Institute of Technology, Isotoparium, Pasadena, United States, (6)University of Southern California, Los Angeles, United States, (7)Georgia Institute of Technology Main Campus, School of Chemical and Biomolecular Engineering, School of Earth and Atmospheric Sciences, School of Civil and Environmental Engineering, Atlanta, United States
Satellite AOD and Low-Cost Sensor Integration with Machine Learning for PM2.5 Prediction in Complex Terrain (1972447)
Celime Garcia, Desert Research Institute Reno, Division of Atmospheric Science, Reno, United States, Yeongkwon Son, Desert Research Institute, Reno, United States, Patrick Arnott, University of Nevada Reno, Physics Department, Reno, United States and Dr. Yeongkwon Son and Dr. W Patrick Arnott
FIRE-SENSE: An Open-Source, Low-Cost Air Quality Sensor Network for Fire-Prone and Underserved Regions (1972787)
Javier Gonzalez-Rocha, University of California Santa Cruz, Santa Cruz, CA, United States, Sankritya Anand Rai, University of California Santa Cruz, Santa Cruz, United States, Julius Villa, University of California Santa Cruz, Computer Science, Santa Cruz, United States, Charan Nemarugommula, University of California Santa Cruz, Computer Engineering, Santa Cruz, United States and Theodore de Swiet, University of California Santa Cruz, Robotics Engineering, Santa Cruz, United States
Underserved and Overexposed: Air Monitoring Gaps in Agricultural Communities across California's Monterey and Santa Cruz Counties (1974452)
Juan-Fernando Morales1, Matthew Troxell2, Gerardo Rosas-Gonzalez3 and Javier Gonzalez-Rocha2, (1)University of California Santa Cruz, Computer Science, Santa Cruz, United States, (2)University of California Santa Cruz, Applied Mathematics, Santa Cruz, United States, (3)Skyline High School, Oakland, United States
Performance of a Dual-Wavelength MetOne Carbon (C-12) Monitor in Contrasting Atmospheric Environments: A New York State Intercomparison Study (1978083)
James Nimo1, Md. Aynul Bari2, Scott D Miller3, Cheng-Hsuan Lu1, Eli Dueker4 and Brian Pavilonis5, (1)University at Albany State University of New York, Albany, United States, (2)Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, NY, United States, (3)University at Albany State University of New York, Atmospheric Sciences Research Center, Albany, United States, (4)Bard College, Biology & Environmental Studies, Center for Environmental Sciences and Humanities, Annandale-On-Hudson, United States, (5)CUNY Graduate School of Public Health and Health Policy, Department of Environmental, Occupational, and Geospatial Health Sciences, NY, United States
Harnessing Low-cost Sensors for Promoting Sustainable Indoor Air Quality at Underserved Neighborhoods in New York State (2001533)
Md. Aynul Bari1, James Nimo2, Darvensky Eugene3, Zarifa Hossain4, Avery Jackson5, Scott D Miller6, Cheng-Hsuan Lu2, Eli Dueker7 and Brian Pavilonis8, (1)Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, NY, United States, (2)University at Albany State University of New York, Albany, United States, (3)SUNY at Albany, Department of Environmental Health Sciences, Albany, United States, (4)SUNY at Albany, Department of Environmental and Sustainable Engineering, Albany, United States, (5)Suny at Albany, Department of Environmental and Sustainable Engineering, Albany, United States, (6)University at Albany State University of New York, Atmospheric Sciences Research Center, Albany, United States, (7)Bard College, Biology & Environmental Studies, Center for Environmental Sciences and Humanities, Annandale-On-Hudson, United States, (8)CUNY Graduate School of Public Health and Health Policy, Department of Environmental, Occupational, and Geospatial Health Sciences, NY, United States
Lessons from seasonal calibrations of lower-cost air monitors deployed in rural Tamil Nadu (2001931)
Rashmi Krishnan1,2, Adithi Upadhya3, Ajay Pillarisetti4, Saritha Sendhil5, Rengaraj R5, Durairaj Natesan5, Naveen Puttaswamy5, Wenlu Ye6 and Kalpana Balakrishnan7, (1)Organization Not Listed, Washington, DC, United States, (2)University of California, Berkeley, Division of Environmental Health Sciences, Berkeley, United States, (3)ILK Consultancy, Bangalore, India, (4)University of California, School of Public Health, Berkeley, United States, (5)Sri Ramachandra Institute of Higher Education and Research, Public Health, Chennai, India, (6)World Health Organization, Zurich, Switzerland, (7)Sri Ramachandra Institute of Higher Education and Research, (Central Research Facility), Porur, Tamil Nadu, India
