Taipei, March 21 (CNA) The air quality was good in eastern Taiwan Tuesday, but it was poor in many parts of central and southern Taiwan, according to the Environmental Protection Administration's Taiwan Air Quality Monitoring Network.
As of 11 a.m., the air quality in the eastern counties of Hualien and Taitung and in some parts of southern Taiwan's Pingtung County flashed a green light, meaning the air quality in those regions was good, network data showed (http://taqm.epa.gov.tw/taqm/en/).
The air quality in the rest of the country flashed yellow or orange lights, meaning the air quality was fair or unhealthy for sensitive groups, respectively, according to the network.
The air quality was especially poor in Taichung, Nantou and Changhua in central Taiwan, in Yunlin, Chiayi and Tainan in southern Taiwan, and in the outlying Kinmen County, which is located less than 10 kilometers off China's southern coast.
For Wednesday, the air quality is expected to flash red -- meaning "unhealthy" -- in Kaohsiung, Pingtung, Yunlin, Chiayi and Tainan; orange in central Taiwan; yellow in the north; and green in Yilan, Hualien and Taitung; according to the network.
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.
(By Christie Chen)