Taipei, The air quality in the southern half of western Taiwan and the offshore islands of Kinmen and Matsu was mostly poor Thursday 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 Friday, the eastern counties of Yilan, Hualien and Taitung 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 central and southern Taiwan is expected to be unhealthy for the sensitive groups such as the elderly, young children and people with a chronic disease, according to the network (http://taqm.epa.gov.tw/taqm/en/AqiMap.aspx).
The air quality in many parts of Kaohsiung City and in Kinmen County flashed red Thursday, indicating the air quality in those areas was unhealthy for the general public.
The air quality indicator in central Taiwan, other parts of southern Taiwan and the Matsu Islands was orange, or unhealthy for the 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