Research in the California - Mexico Border Region
Contact
CARB and its partners have conducted frequent air quality studies in the California – Baja California border region to help inform air pollution programming in the area. Below is a list of recent research projects in the border region.
Vehicle Emissions and Fleet Characteristics in Baja California – CARB, 2023
The Eastern Research Group, Inc (ERG), under a contract from CARB, conducted a detailed inventory of vehicles and their emissions in northern Baja California with the goal of improving the emissions models for border region. This research builds off the previous ERG research building Baja California emissions inventory.
Improving the CalEnviroScreen Score at the US-Mexico border – CARB, 2019
Researchers with the San Diego State University School of Public Health, under a contract with CARB, conducted extensive monitoring and modeling to help improve the CalEnviroScreen scores in the border region by more accurately accounting for emissions occurring in Mexico.
Northern Baja California Emissions Inventory Project – CARB, 2019
The Eastern Research Group, Inc (ERG), under a contract from CARB, built and inventory and model of emissions from Baja California to better understand air quality issues in Southern California, particularly the border region.
Border 2020 Community Air Monitoring study at the San Ysidro Port-of-Entry – OEHHA, 2019
In a two-year community-based study coordinated and funded by the California Office of Environmental Health Hazard Assessment (OEHHA), 13 low-cost air quality monitors were used to research air quality conditions around the San Ysidro Port-of-Entry. Researcher’s top preliminary finding was that wait times for vehicles north of the border were associated with higher PM2.5 levels at the community monitoring sites.
PM2.5 monitoring at the San Ysidro Port-of-Entry – US EPA, 2017
This study took regular measurements of Particulate Matter (PM) 2.5 levels at one station on the border to compare to the rest of the border region, and San Diego County overall. The EPA found that fluctuations in air quality matched the surrounding area but was strongly influenced by air pollution from Tijuana.