Air quality fair except southern Taiwan, Matsu Friday

Taipei--The air quality was moderate to good around the country Friday with the exception of most parts of Kaohsiung City and Pintung County in southern Taiwan and the Matsu Islands, according to the Environmental Protection Administration's Taiwan Air Quality Monitoring Network.

For Saturday, the air quality from Yunlin County to Pingtung County in southern Taiwan is expected to flash orange, indicating the air will be unhealthy for sensitive groups, while that in the rest of the country is likely to be yellow (moderate) to green (good), according to the network (

The EPA's color scale takes into account ozone, PM2.5 and PM10 particulates, carbon monoxide, sulfur dioxide and nitric oxide concentrations in the air.

Green represents "good" air quality, with a pollutant reading of less than 50; yellow indicates "moderate" at 50-100; orange means "unhealthy for sensitive groups" with a reading of 101-150; red indicates "unhealthy" with a range of 151-200; purple signifies "very unhealthy" with a level of 201-300; maroon represents "hazardous" with an reading of 301-500.

Source: Focus Taiwan News Channel