Recently Completed Research Contracts

Visit the Active Contracts webpage for a list of CARB's current research contracts.

The California Air Resources Board (CARB) sponsors a research program that is guided by the mission of providing sound and timely scientific results to support CARB’s policies and programs. CARB’s research goals of informing health-based air quality standards, reducing air pollution exposures, and protecting California from the potential impacts of climate change have been met through a diverse portfolio of projects. A list of recently completed research contracts sorted by category can be found below. Environmental justice and economics are included in all research categories.

Air Quality

Title	Start Date	PI (Author)	Institution	Contract No.
Analysis of Particulate Matter Composition Measured in Los Angeles during RECAP-LA	06/30/22	John Seinfeld	Caltech	21RD017
TARTA-XACT Comparison	05/01/22	Anthony Wexler	University of California, Davis	21RD020
Framework for Collecting and Updating Time-Activity Patterns	02/01/22	Cesunica E. Ivey	University of California, Berkeley	21RD011
Measurements of VOCs in the SoCAB: Chemical Characterization and Impacts on Potential Ozone and PM Formation	04/01/21	Jessica Gilman	National Oceanic and Atmospheric Association	20RD002
Decision Drivers to Facilitate Lower-Polluting Products Choices by Consumers	11/01/20	Magali Delmas	University of California, Los Angeles	20RD008
Airborne Flux Measurement of Volatile Organic Compounds and Oxides of Nitrogen in California	10/01/20	Allen Goldstein	University of California, Berkeley	20RD003
Direct Measurements of Ozone Sensitivity to Oxides of Nitrogen and Volatile Organic Compounds in the South Coast Air Basin	01/01/19	Michael Kleeman	University of California, Davis	19RD012

Climate

Title	Start Date	PI (Author)	Institution	Contract No.
Airborne Remote-Sensing Surveys of Methane Emissions in California	03/01/23	Andrew Aubrey	Carbon Mapper, Inc	22RD001
Development of a Testing Standard and a Mechanistic Model for Enteric Fermentation Methane Emissions	04/01/22	Ermias Kebreab	University of California, Davis	21RD019
Airborne Remote-Sensing Surveys of Methane Emissions in California: Fall 2020 Campaign	10/21/20	Riley Duren	University of Arizona	20RD011
Understanding and Mitigating Wildfire Risk in California	01/01/20	Allen Goldstein	University of California, Berkeley	19RD008

Health

Title	Start Date	PI (Author)	Institution	Contract No.
White Paper: Analysis of Race/Ethnicity in Social Determinants of Health and Climate Change Vulnerability	06/15/23	Tarik Benmarhnia	University of California, San Diego	22RD037
White Paper: Health Impacts by Race/Ethnicity in Air Pollution Studies in California	03/15/23	Tarik Benmarhnia	University of California, San Diego	22RD025
Low-Cost Sensors for Healthier Indoor Air Quality in Impacted Communities	04/01/23	Cesunica Ivey	University of California, Berkeley	22RD020
Community Wildfire & Capacity Building Webinar	04/01/23	Suellen Hopfer	University of California, Irvine	22RD018
White Paper: Air Pollutant Emissions and Possible Health Effects Associated with Electronic Air Cleaning Devices	09/01/22	Christopher Cappa	University of California, Davis	22RD003
Air Pollution Measurements, Exposure Assessment, and Evaluation of the Sources of Particulate Matter in Fresno, CA	05/01/20	Katharine Hammond	University of California, Berkeley	19RD003
Health Impacts of California Wildfire PM2.5 Across the Lifespan: Wildfire Exposure to Rhesus Monkeys	04/01/20	Lisa Miller	University of California, Davis	19RD005
A Scenario Tool for Assessing the Health Benefits of Conserving, Restoring and Managing Natural and Working Lands in California	03/01/20	Michael Jerrett	University of California, Los Angeles	19RD015

Sustainable Transportation & Communities

Title	Start Date	PI (Author)	Institution	Contract No.
White Paper: Improving the Efficiency of the Urban Freight System in California	02/15/22	Miguel Jaller	University of California, Davis	21RD015
Alignment of Planned Transportation Investments with Climate and Equity Goals	02/01/22	Brian Taylor	University of California, Los Angeles	21RD008
Measuring, Analyzing, and Identifying Small-Area Vehicle Miles Traveled Reduction	04/01/21	Susan Handy	University of California, Davis	20RD006
A Data Science Framework to Measure VMT by Mode and Purpose	04/01/21	Marta Gonzalez	University of California, Berkeley	20RD005
Strategies for Incentivizing High-Occupancy, Zero-Emission, New Mobility Options	02/01/20	Susan Shaheen	University of California, Berkeley	19RD009
Volker, Jeremy. Assessing Induced Travel Methodology Trends and Value of Further State Technical Guidance	05/01/24	Jeremy Volker	University of California, Davis	23STC028
Assessment Report: Greenhouse Gas Inventory Preparation for Climate Action Plans – Opportunities for Support to Local Jurisdictions	05/20/24	Michael Boswell	Cal Poly San Luis Obispo	23STC025
Microgrid Greenhouse Gas Reduction and Co-Benefits Assessment	06/28/24	Jan Kleissl	University of California, San Diego	23STC023
Evaluating the Potential Quantification of Community Garden and Urban Farms	04/01/24	Kama Wong	University of California, Irvine	23STC014
Assessing the Quantification Methodology for the Affordable Housing and Sustainable Communities Program	06/30/23	Dan Chatman	University of California, Berkeley	22STC009
Development of Regional Accessibility Metric for SB 150 Report	06/26/23	Dillon Fitch	University of California, Davis	22STC013
A Review of Embodied Carbon Data, Embodied Carbon Emissions, and Emissions Reduction Technologies and Policies for California Building Construction Materials	04/24/23	Eric Masanet	University of California, Santa Barbara	22STC014
Potential State Roles in Expanding Transfer of Development Rights (TDR) as a Tool for Greenhouse Gas Reduction	06/15/23	Louise Bedsworth	University of California, Berkeley	22STC020
Research Study: State of Zero-Emission Vehicle Secondary Market and Accessibility Impacts in California’s Underserved Communities	06/15/23	Gil Tal	University of California, Davis	22STC016
Regional- and State-Led Strategies to Improve Local Implementation of Sustainable Communities Strategies	04/01/23	Elisa Barbour	University of California, Davis	22STC010
California Climate Investments Climate Risk Assessment	05/15/23	Owen Doherty	Eagle Rock Analytics, Inc	22STC003
Best Practices and Capacity Building for Local Government Implementation of Climate Action Policies	05/15/22	Catherine Brinkley	University of California, Davis	21STC021
White Paper: Economic and Environmental Benefits Analysis for Off-Site Construction Methods	05/15/22	Benjamin Metcalf	University of California, Berkeley	21STC020
White Paper: Greenhouse Gas Benefits of Adaptive Reuse	05/01/22	Arpad Horvath	University of California, Berkeley	21STC018
Understanding Travel Demand and Built Environment Factors to Optimize Increased ZEV Access in Underserved Communities	05/15/22	Scott Hardman	University of California, Davis	21STC017
White Paper: Vehicle Miles Traveled and Emission Impacts of On-Demand Delivery Services	06/01/22	Shams Tanvir	Cal Poly San Luis Obispo	21STC016
White Paper and Tool Development for Quantifying Potential Indirect Impacts of Transit Investment	06/01/22	Bruce Appleyard	San Diego State University	21STC015
Policy Briefs: Effects of Transportation and Land Use Policies and Strategies on Vehicle Use and Greenhouse Gas Emissions	06/29/22	Dillon Fitch-Polse	University of California, Davis	21STC014
Assessing the Early Impacts of the Clean Miles Standard on California Ride-hailing Drivers	04/01/22	Giovanni Circella	University of California, Davis	21STC013
White Paper: Impact of Innovative Financing Tools on the Production of In-Fill Housing and Reduction in VMT	06/29/22	Shishir Mathur	San Jose State University	21STC011
Housing Scenarios for Climate and Equity	06/01/22	Erik de Kok	Governor's Office of Planning & Research	21STC010
Local California Environmental Quality Act (CEQA) Mitigation	10/01/21	Michael Boswell	California Polytechnic State University	21STC001
Advanced Carbon Modeling Techniques for the Forest Health Quantification Methodology	06/01/21	Jonathan Greenberg	University of Nevada, Reno	20STC014
Evaluating the Potential for Housing Development in Transportation-Efficient and Healthy, High-Opportunity Areas in California	06/01/21	Nicholas Marantz	University of California, Irvine	20STC009
Post-COVID Transportation Scenarios: Evaluating the Impact of Policies	05/15/21	Susan Handy	University of California, Davis	20STC008
Barriers to Reducing the Carbon Footprint of Transportation	06/01/20	Giovanni Circella	University of California, Davis	19STC006

Mobile Sources

Title	Start Date	PI (Author)	Institution	Contract No.
Heavy-Duty Optional Low NOx Vehicle Testing	04/01/22	Thomas Durbin	University of California, Riverside	21RD018
Plume Capture Measurement of Vehicle Emissions at the Caldecott Tunnel for Heavy-Duty Emission Program Development and Verification	02/01/21	Thomas Kirchstetter	University of California, Berkeley	20RD004
Remote Sensing Measurements of Light-Duty Vehicle Emissions at Multiple California Locations	11/01/20	Sandeep Kishan	Eastern Research Group	20RD001
Low-Carbon Transportation Incentive Strategies Using Performance Evaluation Tools for Heavy-Duty Trucks and Off-Road Equipment	06/01/20	Stephen Ritchie	University of California, Irvine	19RD026
Air Monitoring Site Selection Methodology for Particulate Matter from Brake and Tire Wear	02/15/20	Michael Jerrett	University of California, Los Angeles	19RD007
Collection and Analysis of Agricultural Equipment Activity Data	06/01/20	Tom Durbin	University of California, Riverside	19RD002