The California Air Resources Board has rolled out its mobile website called “Breathe Well.”
You can check both fine particle pollution and ozone pollution at your current location or cities you may plan to visit.
It works by accessing hourly data from more than 200 air monitors around the state.
“It uses the location finding ability of your smartphone to tell you what the air quality is like wherever you are, says Melanie Turner with the California Air Resources Board. "Or, you can choose from more than 150 locations. So if you’re traveling to Fresno for example, you can plug in that location to find out what their pollution levels are like there.”