Taipei--The air quality was good in most parts of northern and eastern Taiwan Wednesday, but it was poor in central and southern Taiwan, according to the Environmental Protection Administration's Taiwan Air
Quality Monitoring Network.
A green light was flashed for most parts of northern Taiwan and eastern counties of Yilan and Taitung, meaning the air quality in those regions was good, the network reported. A yellow light was issued for most parts of western Taiwan, meaning the air quality there was moderate.
At the same time, an orange light was flashed for Nantou County in central Taiwan and a small area in Yunlin, Chiayi and Tainan counties and Kaohsiung and Pingtung counties in the south, meaning that the air quality was unhealthy for sensitive groups there, according to the monitoring network (http://taqm.epa.gov.tw/taqm/en/AqiMap.aspx).
The administration cautioned the public against doing strenuous exercise outdoors in those regions. Young children, elderly people and those suffering from cardiovascular or chronic diseases are advised to remain indoors or wear a mask when going out.
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 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