Taipei--The air quality in the southern half of western Taiwan and the offshore county of Kinmen was mostly poor Friday while that in the rest of the country was moderate to good, according to the Environmental Protection Administration's Taiwan Air Quality Monitoring Network.
For Saturday, the eastern half of Taiwan can expect to enjoy good quality air, northern Taiwan including Hsinchu and Miaoli Counties will likely have moderate quality air while the air quality in the rest of western Taiwan -- from Taichung City down to Pingtung County, is expected to be unhealthy for sensitive groups, according to the network (http://taqm.epa.gov.tw/taqm/en/AqiMap.aspx).
The air quality in Kaohsiung City and neighboring Pingtung County flashed red Friday, indicating the air in most parts of the two areas was unhealthy for the general public.
In central Taiwan, Yunlin, Chiayi and Tainan and offshore Kinmen Islands, the air quality was orange-coded, meaning the air was unhealthy for sensitive groups.
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 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