An Educational Resource from California Safe Schools
An Educational Resource from California Safe Schools
About the Diesel Idling Deterrence Project
The Diesel Idling Deterrence project is a targeted initiative addressing diesel exhaust exposure in Los Angeles City Council District 6 cities: Arleta, Van Nuys, Sun Valley & North Hollywood, Lake Balboa, North Hills, and Panorama City.
The project focuses on identifying sensitive locations—such as schools, homes, daycare centers, and senior facilities—near diesel truck routes and freight-related activity, and supporting strategies that reduce exposure in surrounding communities.
Led by California Safe Schools (CSS), the project combines mapping, outreach, education, and signage placement to reduce localized diesel idling emissions in high-burden neighborhoods of the San Fernando Valley.
Why this matters
Diesel exhaust contains fine particulate matter (PM2.5) and other pollutants associated with respiratory and cardiovascular health impacts. Exposure has been linked to asthma exacerbation, reduced lung function, and long-term chronic disease risk.
Children are especially vulnerable due to their proximity to schools and higher respiration rates. Communities located near freight corridors and industrial land uses experience higher cumulative exposure to diesel pollution, contributing to persistent environmental health disparities across Los Angeles.
How mapping identifies exposure risk
The project uses geographic analysis to identify sensitive receptor sites located near diesel truck routes and freight corridors.
Mapping integrates:
Because truck routing and loading activity are not always fully documented at the local level, the project combines available transportation data with field-informed assessment to better reflect real-world exposure conditions in District 6.
Schools and community outreach
Using mapped exposure data, the project engages schools, administrators, and community stakeholders to support awareness and participation in reducing diesel idling exposure.
Outreach includes:
Website and Story Map tools
The project website serves as a centralized hub for mapping, education, and community engagement.
It includes:
A Story Map visually presents identified sensitive receptor sites located near diesel idling hotspots across District 6 communities.
Regulatory and environmental context
This project is grounded in established air quality and environmental justice frameworks.
California Air Resources Board regulations (Title 13 CCR §2485) restrict unnecessary idling of heavy-duty diesel vehicles and provide enforcement mechanisms to reduce emissions in sensitive areas.
The project also aligns with Assembly Bill 617 (AB 617), which supports community-level emissions reduction strategies in areas with disproportionate pollution burdens.
Environmental assessment tools such as CalEnviroScreen 4.0 and the Healthy Places Index identify elevated pollution burdens and reduced environmental health indicators in portions of District 6, particularly in neighborhoods near major freight corridors and industrial land uses.
Health and exposure impacts
Heavy-duty diesel idling contributes to localized emissions of particulate matter and nitrogen oxides. Diesel engines can consume approximately 0.5–1 gallon of fuel per hour while idling, depending on engine type and operating conditions.
These emissions contribute to regional smog formation and localized exposure risks near sensitive locations such as schools and residential areas.
Public health research consistently shows higher rates of asthma and respiratory impacts in communities with elevated diesel particulate matter exposure.
Effectiveness of signage and intervention
Research on similar interventions indicates that visible “No Idling” signage, when combined with outreach and enforcement, can reduce idling behavior by approximately 20–50% in comparable settings.
The Diesel Idling Deterrence project integrates mapping, education, and community engagement to better understand and reduce exposure to diesel pollution in high-burden communities of Los Angeles City Council District 6. The project supports informed local action in areas where environmental health risks are most concentrated.
Founded in 1998, California Safe Schools (CSS) is a nonprofit organization dedicated to protecting children’s health and the environment by promoting safer school environments, advancing environmental justice, and eliminating toxic exposures in schools and communities. CSS’s groundbreaking policies and advocacy have shaped statewide and national reforms that continue to protect millions.
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