How dangerous is extreme heat in your neighborhood? This map tells you

By Hayley Smith

Extreme heat is fueling more than 1,500 excess emergency room visits per “heat day” in Los Angeles County, with some neighborhoods facing far more danger than others, according to a new UCLA mapping tool.

The heat map tracks the number and rate of excess emergency room visits on heat days down to the community level and highlights a stark disparity between wealthier, leafier neighborhoods and those that are home to fewer trees, more concrete and higher occurrences of underlying health issues.