policy briefBarriers by Roadways: The Efficacy of Long Beach’s Great Wall of Mulch in Reducing Pollutant Concentrations in Adjacent AreasPublication DateDecember 1, 2019Associated Project Barriers by Roadways: The Efficacy of Long Beach’s Great Wall of Mulch in Reducing Pollutant Concentrations in Adjacent AreasAreas of Expertise Infrastructure Delivery, Operations, & Resilience Safety, Public Health, & Mobility Justice View policy brief
