The Environmental Protection Administration (EPA) has initiated the Air Quality Index (AQI) on December 1, 2016.
The new system uses green, yellow, orange, red, purple, and brown colors to indicate the different levels as well as integrated the previous "PSI" and "PM2.5" indexes.
The Taoyuan City Government will provide air quality recommendations to the people to facilitate early air pollution contingency measures and safeguard the health of the public.