Taipei--Air quality in central and southern Taiwan will be poor on Thursday, while northern and eastern parts of the country will see moderate to clean air, according to the Environmental Protection Administration's Taiwan Air Quality Monitoring Network.
The air quality index for southwestern cities and counties from Yunlin to Kaohsiung and Pingtung is expected to flash orange, indicating that the air is unhealthy for sensitive groups, according to the monitoring network (http://taqm.epa.gov.tw/taqm/en/AqiForecast.aspx).
Meanwhile, air quality in northern Taiwan, including Hsinchu and Miaoli, will be moderate (yellow) on Thursday, while Hualien and Taitung Counties are expected to enjoy good air quality (green).
On the offshore islands of Kinmen, Matsu and Penghu, air quality will also be moderate.
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 a reading of 301-500.
Source: Focus Taiwan News Channel