Official AQI levels, names and colors are provided in a list for easy coloring and labeling.
AQI_en
A list with named elements
AQI breaks and associated names and colors (english language)
The AQI_es object contains english language text. It is equalivalent to the
AQI object and provided for consistency with other language versions.
AQI breaks and colors are defined at https://docs.airnowapi.org/aq101
The low end of each break category is used as the breakpoint.