Taipei, March 31 (CNA) The air quality in Taiwan Friday was mostly poor except in eastern Taiwan and the southern tip of the island, where people could enjoy good air quality, according to the Environmental Protection Administration's Taiwan Air Quality Monitoring Network.
As of 11 a.m., the air quality in Kaohsiung City in the south, Yilan County in the northeast, the western islands of Matsu and Penghu and some parts in northern Taiwan were moderate (yellow in the administration's six-color code).
But in central Taiwan, southern Taiwan's Yunlin, Chiayi and Tainan, Kinmen Islands and most parts of northern Taiwan, the air quality was either unhealthy for sensitive groups including young children, the elderly, people with a chronic disease or for the general public, especially in Yunlin and Chiayi. (http://taqm.epa.gov.tw/taqm/en/).
For Saturday, the air quality in central and southern Taiwan will be mostly unhealthy for sensitive groups (orange) while for the rest of Taiwan, the air quality is expected to be moderate.
The agency'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 0-50; yellow indicates "moderate" at 51-100; 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