Taipei--Air quality was poor for sensitive groups in western Taiwan Wednesday, with the air in Yunlin County's Mailiao and Taixi townships found unhealthy for the general public, according to the Environmental Protection Administration's (EPA's) Taiwan Air Quality Monitoring Network.
As of 9 a.m., the monitoring stations in Taiwan's western areas flashed "orange," meaning the air quality there was unhealthy for sensitive groups such as children, the elderly and people with a chronic disease, according to the network (http://taqm.epa.gov.tw/taqm/en/).
Meanwhile, the air quality in Yunlin's Mailiao and Taixi townships flashed "red," indicating it is unhealthy for the general public. People are advised to refrain from outdoor activities.
For the rest of Taiwan, the air quality was moderate (yellow) to good (green), with more areas in Pingtung County in the southeast enjoying good air quality.
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