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Electric Vehicle Adoption in California: Predictors, Impacts on Local Air Quality and Respiratory Health

Award Number: R01ES035137
ORGANIZATION: NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 04/20/2023
PERIOD OF PERFORMANCE END DATE: 01/31/2028

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Electric Vehicle Adoption in California: Predictors, Impacts on Local Air Quality and Respiratory Health - Electrification of the transportation sector in the United States is projected to have considerable cobenefits for public health through reductions in tailpipe-related emission. Numerous studies have estimated impacts on air quality and a few on health outcomes under various hypothetical scenarios— but no study to date has evaluated the broad real-world impacts of current rapidly increasing electric vehicle (EV) adoption levels. Further, the is a need to understand the distribution of EV adoption to ensure all people are benefitting from this transition. We propose to study patterns of EV adoption and in the observed local air quality and respiratory health co-benefits of EV adoption, using a sequential qualitative  quantitative  qualitative mixed methods design which melds community-engaged research with traditional epidemiological data analyses of large statewide databases in CA. We will first conduct focus group discussions with community members of the Southeast Los Angeles region, in collaboration with our community partner, to better understand perceived barriers and possible opportunities for promoting adoption of EVs in traffic-burdened communities (Aim 1a). Data from these focus group discussions will be used to refine our preliminary conceptual framework for EV adoption and identify additional hypotheses for testing in subsequent quantitative aims. Next, key predictive factors of neighborhood-level EV adoption in CA will be characterized using real-world data on EV registration (Aim 1b). Then, we will evaluate the effect of observed local EV adoption on measured tailpipe-related air pollutant concentrations (fine particulate matter [PM2.5] and nitrogen dioxide [NO2]) and assess potential effect measure modification by neighborhood/contextual factors (Aim 2). Finally, we will examination associations of EV adoption with local ED visits and hospitalization for pediatric and adult asthma and COPD, again assessing for potential effect measure modification by neighborhood/contextual factors (Aim 3). Sustained bidirectional community engagement is built in across the entire study period. In addition to focus group discussions, the community engagement plan includes annual community dialogues and Advisory Council meetings and a final community report back meeting. Our multi-pronged approach for community engagement is expected to enhance the relevance, validity, and impact of research findings. Study findings will provide policymakers with valuable real-world evidence on air quality and health co-benefits of the EV transition and capacitate communities with high traffic pollution burden in the transition, facilitating future research to reduce future environment and health impacts.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $421,605 )
2026	2026	UNIVERSITY OF SOUTHERN CALIFORNIA	3720 S FLOWER ST FL 3	LOS ANGELES	CA	90033	LOS ANGELES	USA	Environmental Health	000	4	4/29/2026	NON-COMPETING CONTINUATION	$421,605
														Subtotal = $421,605

Issue Date FY: 2025 ( Subtotal = $424,459 )
2025	2025	UNIVERSITY OF SOUTHERN CALIFORNIA	3720 S FLOWER ST FL 3	LOS ANGELES	CA	90033	LOS ANGELES	USA	Environmental Health	002	3	8/11/2025	NON-COMPETING CONTINUATION	$424,459
2025	2024	UNIVERSITY OF SOUTHERN CALIFORNIA	3720 S FLOWER ST FL 3	LOS ANGELES	CA	90033	LOS ANGELES	USA	Environmental Health	001	2	8/8/2025	OTHER REVISION	$0
2025	2024	UNIVERSITY OF SOUTHERN CALIFORNIA	3720 S FLOWER ST FL 3	LOS ANGELES	CA	90033	LOS ANGELES	USA	Environmental Health	000	2	6/16/2025	TERMINATION	$0
														Subtotal = $424,459

Issue Date FY: 2024 ( Subtotal = $436,859 )
2024	2024	UNIVERSITY OF SOUTHERN CALIFORNIA	3720 S FLOWER ST FL 3	LOS ANGELES	CA	90089	LOS ANGELES	USA	Environmental Health	000	2	1/23/2024	NON-COMPETING CONTINUATION	$436,859
														Subtotal = $436,859

Issue Date FY: 2023 ( Subtotal = $513,788 )
2023	2023	UNIVERSITY OF SOUTHERN CALIFORNIA	3720 S FLOWER ST	LOS ANGELES	CA	90089	LOS ANGELES	USA	Environmental Health	000	1	4/20/2023	NEW	$513,788
														Subtotal = $513,788

Grand Total All Awards = $1,796,711

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Electric Vehicle Adoption in California: Predictors, Impacts on Local Air Quality and Respiratory Health

Award Number: R01ES035137

ORGANIZATION: NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 04/20/2023

PERIOD OF PERFORMANCE END DATE: 01/31/2028

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