Though this map is larger in scope, a similar, smaller map put out by California’s Environmental Protection Agency last April is already in use in-state as a guide to where funding should be spent on pollution-mitigating programs. The national map is considered to have fewer “nuances” than the one focusing on California alone. It’s also currently missing some vitally important information about health effects of pollution, like charting the risk of cancer from breathing toxic air. Those elements are on the map but unable to be selected and viewed now; the EPA says that data isn’t available yet, but that it will be added to the map when it is.
Some sample shots of the same, generally central portion of LA and a handful of environmental risks: