Taipei, --Air quality around Taiwan was mixed Thursday, with the southern Taiwan counties of Yunlin and Chiayi experiencing air that is unhealthy for sensitive groups, according to the Environmental Protection Administration's Taiwan Air Quality Monitoring Network.
As of 10 a.m., air quality at monitoring stations in Yunlin's Taixi, Mailiao and Lunbei townships, and Chiayi's Puzi township flashed an orange light, indicating air quality that is unhealthy for sensitive groups such as young children, the elderly and people with chronic disease, according to the network (http://taqm.epa.gov.tw/taqm/en/).
Air quality was good (green) in northern and eastern Taiwan, as well as in parts of Nantou County in central Taiwan and Pingung County in the south, while air was moderate (yellow) in the rest of the country.
The EPA's six-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 an index reading of 0-50; yellow indicates moderate, with a reading of 50-100; orange means unhealthy air quality for sensitive groups, with a reading of 101-150; red indicates unhealthy quality, with a range of 151-200; purple signifies very unhealthy levels at 201-300; and maroon represents hazardous levels at a reading of 301-500.
Source: Focus Taiwan News Channel