Dr. Bryan Duncan


NASA Goddard Space Flight Center
Duncan Bio

Bryan Duncan is a Research Physical Scientist in the Atmospheric Chemistry & Dynamics Laboratory of the NASA Goddard Space Flight Center (GSFC), as well as the Project Scientist for the NASA Aura satellite mission.

Bryan’s HAQAST team is developing a multi-pollutant Health Air Quality Index (HAQI) and is applying it to output from the new NASA global air quality forecast system, which wit is helping to evaluate and improve. This system is important as most people around the world have little or no access to air quality information. The forecasted HAQI will communicate the risks of exposure to multiple air pollutants so that people may take action to reduce their exposure. We are currently working with a few city governments, including Rio de Janeiro and Jakarta, to properly message and distribute the forecasts as well as to provide satellite data that may be used to identify where local efforts are needed to reduce emissions. We will also investigate the development of a satellite-based HAQI.

In addition, he is contributing to the following Tiger Teams:

And he co-leads, along with Jason West, the Tiger Team Demonstration of the Efficacy of Environmental Regulations in the Eastern US.


HAQAST Presentations

A Satellite-Based Global Health Air Quality Index (HAQI)*: Development and Assessment (HAQAST 1)

A Satellite-Based Global Health Air Quality Index (HAQI)*: Development and Assessment (HAQAST 2)

HAQAST TT: Demonstration of the Efficacy of Environmental Regulations in the Eastern U.S.

Update on Ongoing Conversations with End-Users

Update on NASA Air Quality Forecasts, Health Air Quality Index, etc.

HAQAST TT: Demonstration of the Efficacy of Environmental Regulations in the Eastern U.S.



Estimates of the Global Burden of Ambient PM2.5, Ozone, and NO2 on Asthma Incidence and Emergecy Room Visits

Susan C. Anenberg, Daven K. Henze, Veronica Tinney, Patrick L. Kinney, William Raich, Neal Fann, Chris S. Malley, Henry Roman, Lok Lamsal, Bryan Duncan, Randall V. Martin, Aaron von Donkelaar, Michael Brauer, Ruth Doherty, Jan Eiof Jonson, Yanko Davila, Kengo Sudo, and Johan C.I. Kuylenstierna, Environmental Health Perspectives

Decadal Survey for Earth Science and Applications from Space

Two HAQAST members (Bryan Duncan and Ted Russell) are among the authors of the Weather and Air Quality panel, HAQAST collaborator Steve Ackerman co-chaired the panel, and team leader Tracey Holloway was a review



Stratospheric Intrusion‐Influenced Ozone Air Quality Exceedances Investigated in the NASA MERRA‐2 Reanalysis


Evaluating a Space‐Based Indicator of Surface Ozone‐NOx‐VOC Sensitivity Over Midlatitude Source Regions and Application to Decadal Trends


A decade of changes in nitrogen oxides over regions of oil and natural gas activity in the United States

Aman MajidMaria Val Martin, Lok N. Lamsal, Bryan N. Duncan, Elementa: Science of the Anthropocene

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