Taipei--Air quality around Taiwan was mixed Monday, with the offshore counties and many parts in western Taiwan seeing air that was unhealthy for sensitive groups, according to the Environmental Protection Administration's Taiwan Air Quality Monitoring Network.
As of 10 a.m., the islands of Matsu, Kinmen and Penghu, Changhua County in central Taiwan and some monitoring stations in western Taiwan from Taoyuan down to Tainan flashed orange, indicating air quality unhealthy for sensitive groups such as young children, the elderly and people with a chronic disease, according to the network (http://taqm.epa.gov.tw/taqm/en/).
In the rest of the country, air quality was moderate (yellow) to good (green), including eastern Taiwan, Nantou County, Kaohsiung City, neighboring Pingtung County and the greater Taipei area.
For Tuesday, eastern Taiwan's Yilan, Hualien and Taitung Counties are expected to enjoy good air quality while central and southern cities and counties would likely have air that will be unhealthy for sensitive groups.
Air quality in northern Taiwan, including Hsinchu and Miaoli, is expected to be moderate.
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