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Active Research Projects

Air quality in sub-Saharan Africa

With support from the National Science Foundation and the US State Department, we have started an air quality monitoring network in Kinshasa, DR Congo, a megacity with population over 11 million which suffers from poor air quality yet has no monitoring infrastructure. Other projects include air quality knowledge capacity building in Accra, Ghana (partner with Ghana EPA), sensor deployments in Nairobi, Kenya, Kampala, Uganda, and Lomé, Togo, and using models and remote sensing techniques in India, China, and sub-Saharan Africa.

Regional climate response to changes in regional aerosol emissions

Some topics we have worked on in the past include: 1) The impact of changes in emissions in specific regions on local and remote climate, 2) Aerosol impacts on clouds and precipitation and 3) The effect of absorbing aerosols on tropical monsoon systems. We use and develop three coupled chemistry-climate models: GFDL climate models, GISS ModelE, and CESM (NCAR).

Recent Publication

Community-based participatory research for low-cost air pollution monitoring in the wake of unconventional oil and gas development in the Ohio River Valley: Empowering impacted residents through community science

Garima Raheja, Leatra Harper, Ana Hoffman, Yuri Gorby, Lyssa Freese, Brendan O'Leary, Nathan Deron, Shannon Smith, Ted Auch, Melissa Goodwin and Daniel M Westervelt

News

July 08, 2022

Field work, training, and more!

A major group field work trip has just concluded in Ghana and Togo. On the agenda was training and teaching, installation of reference monitors and low cost sensors, and meetings with local stakeholders. 

Mr. Emmanuel Appoh kindly hosted Prof. Westervelt at the EPA Ghana for 1 week, where Prof. Westervelt gave a weeklong certificate program on air quality data analysis, air quality modeling, and hands on experience in estimating the performance of and developing correction factors for low cost air sensors. 

June 17, 2022

Westervelt group at the International GEOS-Chem Meeting

Prof. Westervelt and PhD student Benjamin Yang attended the International GEOS-Chem meeting at Washington University in St. Louis. Westervelt and Yang presented "Evaluation of GEOS-Chem Africa nested grid simulations using an emerging surface air quality dataset". It was good to catch up with the GEOS-Chem community!

May 13, 2022

Westervelt group at ASIC

The Westervelt group was well-represented at the 2022 Air Sensors International Conference in Pasadena, CA. Prof Westervelt presented on low cost sensor measurements in Mombasa, Kenya, and also hosted 3 sessions on international low cost sensor use as part of the CAMS-Net symposium.

PhD student Garima Raheja presented her work on low cost sensor intercomparison in Ghana and sensor deployments in Ghana and Togo. 

The 2022 program can be found here: https://asic.aqrc.ucdavis.edu/2022-program-topics