TAIPEI, Taiwan -- The air quality is likely to range from good to unhealthy in various areas of Taiwan on Sunday, with the Matsu Islands experiencing the worst quality, according to the Environmental Protection Administration (EPA). On EPA's six-color scale, Matsu will flash a red light, indicating a reading of 151-200 on index, which is unhealthy air quality, the EPA's Air Quality Monitoring Network showed. The air quality in the rest of the country will be either good or moderate, as indicated by green and orange lights, respectively, the monitoring data showed. On the EPA's six-color scale, green represents good air quality with an index reading of 0-50; yellow indicates moderate air quality 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. The six-level scale of air quality takes into account ozone, PM2.5 and PM10 particulates, carbon monoxide, sulfur dioxide and nitric oxide concentrations in the air.

Source: The China Post May 27, 2017 10:07 UTC