How to use Google Maps to check the air quality where you live

Before venturing into the great outdoors this summer, there's a new tool from Google Maps you may want to consider. Google has introduced a tool for checking air quality conditions on both Android and iOS devices, to help "make more informed decisions about whether it’s safe to go on a hike or other outdoor adventures," the company says. The air quality layer tool indicates Air Quality Index (AQI), which is typically used by governmental agencies to inform the public about how polluted it is i...