Do you want to know how many people from your zip code or county go to a hospital emergency room on an extreme heat day?

This interactive map of heat-related health outcomes in California shows the excess daily emergency room visits that occur on an extreme heat day compared to the usual, non-extreme heat day. It shows this excess by county and zip code. 

By using the map, public health professionals, emergency service providers, urban planners, legislators, health and human services providers, non-governmental organizations, and communities themselves can find out which neighborhoods across the state are at greatest risk of harm during extreme heat events.

Uses

Knowing which neighborhoods are most at risk from extreme heat allows communities across California to:

• Target heat mitigation programs such as those designed to increase shade.

• Target extreme heat emergency programs to neighborhoods with high morbidity.

• Provide a tool for non-governmental organizations to support their efforts to reduce harms in their communities.

Who We Are

UCLA Center for Healthy Climate Solutions (C-Solutions)

At C-Solutions we work alongside communities to turn public health research into actionable policies and practices. Our faculty are experts in climate change and the health implications of climate-induced crises including air pollution, wildfires, extreme heat, drought, and disasters. We focus on identifying public health co-benefits and building resilience through research, education, and collaboration with our community partners.

UCLA Center for Public Health and Disasters 

The UCLA Center for Public Health and Disasters promotes interdisciplinary efforts to reduce the health impacts of domestic and international, natural and human-generated disasters. Our faculty and staff have diverse backgrounds that include emergency medicine, environmental health, urban planning, engineering, international health, health services, epidemiology, gerontology, sociology, and community health. The Center collaborates with state and local public health agencies, community-based organizations, schools, hospitals, and agencies in the public and private sector to address the critical issues that arise when disaster impacts a community. 

Acknowledgements

The UCLA Heat Maps are created by Dr. David Eisenman, Dr. John Molitor, Dr. Diane Garcia-Gonzales, Dr. Michael Jerrett, Marinelle Villanueva, and Sydney Monte-Sano. We thank the California Office of Environmental Health Hazard Assessment, the Conrad N. Hilton Foundation, the LA Urban Cooling Collaborative, and the UCLA Sustainable LA Grand Challenge for supporting the creation of UCLA Heat Maps.