August 28, 2024, Irvine, Calif. – Researchers from the University of California, Irvine, have published a significant study in the journal Environmental Research Health that explores the profound effects of recurrent wildfires and smoke exposure on the health and well-being of communities in Southern California’s eastern Coachella Valley.
The study, led by Suellen Hopfer, an associate professor of health, society, and behavior at UC Irvine’s Joe C. Wen School of Population & Public Health, focuses on the compounded physical and mental health impacts, as well as the broader economic and social consequences faced by residents of this region. Through in-depth focus groups and surveys conducted in four affected areas—Thermal, Mecca, Oasis, and North Shore—the research offers a comprehensive understanding of how these disasters have reshaped daily life for the local population.
The eastern Coachella Valley, a desert ecosystem located in Riverside County, is increasingly plagued by invasive grasslands and extreme heat, making wildfires a frequent occurrence. This region, with its predominantly Hispanic American population—92 percent of whom have roots in Latino countries, mostly Mexico—relies heavily on agriculture and construction as its primary industries.
Between February and April 2023, Hopfer’s team gathered personal accounts from 118 residents, detailing their experiences with evacuations, health challenges, and the disruptions caused by wildfires and smoke. These narratives shed light on how low-income, marginalized communities are coping with and protecting themselves from the persistent threat of wildfires. They also highlight the resilience and determination of these communities in the face of adversity.
Residents reported a range of physical health issues linked to wildfire smoke, including respiratory difficulties, sinus problems, and eye irritation. These symptoms were especially prevalent among children, the elderly, and individuals with preexisting conditions. The study also found that the mental health toll was equally severe. The constant exposure to smoke and extreme heat, coupled with the inability for children to play outside and family members having to work in hazardous conditions, has led to ongoing psychological stress, anxiety, and fear—further aggravated by the looming threat of wildfires.
“This report owes much to the eastern Coachella Valley families and community residents who bravely shared their experiences with our research team,” said Hopfer, who also holds a joint appointment in pediatrics. “Our community-academia partnership has produced findings that can serve as a crucial resource for policymakers, emergency response teams, and public health officials in developing more effective support systems to protect the valley’s most vulnerable populations.”
The study underscores the urgent need for enhanced emergency preparedness and resources in the region. Residents expressed a strong desire for better communication channels, affordable trash services to mitigate fire risks, and fire prevention education tailored to Spanish-speaking communities. Hopfer also emphasized the importance of community collaboration in wildfire mitigation, noting that neighbors play vital roles in alerting and assisting each other during emergencies.
The research team included UC Irvine doctoral candidates Anqi Jiao and Mengyi Li, Professor Jun Wu from the Joe C. Wen School of Population & Public Health, and Anna Lisa Vargas from the Communities for a New California Education Fund. The study was supported by a grant from the California Air Resources Board.