West Oakland Gets Tree Pollution Barriers
West Oakland, California is investing in dense tree barriers to cut air pollution between residential neighborhoods and busy highways. The initiative will see thousands of trees planted strategically as green infrastructure to address environmental justice and public health disparities. The project represents a broader trend in U.S. cities using urban forestry to tackle pollution and community health issues.
- West Oakland residents have a life expectancy that is, on average, six years shorter than the average for Alameda County. An African American born in West Oakland has a life expectancy almost 15 years shorter than a white child born in the Oakland Hills. - The "Prescott Greening" project, led by the West Oakland Environmental Indicators Project (WOEIP), is a pilot program that will plant dozens of 10- to 12-foot-tall trees that are expected to grow up to 40 feet. Tree species include fern pines, long-leafed yellowwoods, and Japanese blueberry trees, with an understory of California lilacs, manzanitas, and bottlebrushes. - This neighborhood is situated between the Port of Oakland and three major highways: I-880, I-980, and I-580, resulting in high exposure to diesel particulate matter from trucks and port operations. Emergency room visits for asthma are 76% higher for West Oakland residents than the Alameda County average, and hospitalizations for asthma are 88% higher. - The project is part of the "Owning Our Air": The West Oakland Community Action Plan, a community-driven strategy with over 80 initiatives to reduce local air pollution. Recent data shows that between 2017 and 2024, diesel particulate matter in West Oakland has been reduced by 31% on average, with residential exposure down by 56%. - The Port of Oakland, a major source of the pollution, has a goal to become a zero-emissions port and recently received $322 million from the EPA's Clean Ports Program to transition to nearly 100 percent zero-emissions cargo handling operations. The Port had already achieved an 86% reduction in diesel particulate matter from 2005 levels by 2020. - The concept of using vegetation as a pollution barrier is being tested elsewhere in California. In Fresno, the "Fresno TREES" project has planted trees and shrubs along Highway 99 to reduce pollution exposure for nearby communities.
