06/04/2026
A new study funded by a NASA grant awarded to the UC Irvine Joe C. Wen School of Population & Public Health has found that public parks in underserved areas of Los Angeles can reach dangerously high temperatures, in some cases hot enough to cause pain or burns, because of the materials used to build them.
UC Irvine researchers mapped urban heat from space and uncovered a stark disparity across Los Angeles parks: more than a third of parks in South LA reached or exceeded the human thermal pain threshold, while none in West LA did.
The difference was that South LA parks contained far more heat-retaining materials like artificial turf and concrete, while West LA parks were more likely to feature natural turf and vegetation.
Now, researchers have partnered with Communities for a Better Environment and the Los Angeles Neighborhood Land Trust to develop community-led, nature-based solutions and infrastructure improvements to help address unequal urban heat exposure.
University of California, Irvine
Image Description: Senior author Jason A. Douglas conducts fieldwork measuring the surface temperature of park equipment