PSI Starboard at Mac App Store analyse

Right Place Right Time! Supports 24 Hours PSI and Hourly PM2.5 readings across 5 different regions in Singapore, instead of the usual generic average values. Features: • Separate readings across 5 different regions. • 24 Hours PSI readings from NEA. • Hourly PM2.5 readings from NEA. • Easy viewing at a glance. • Today widget support in Notification Center for quicker viewing. PSI stands for Pollutant Standards Index. It is an index to provide accurate and easily understandable information about daily levels of air quality PSI is computed based on 24-hour/3-hour average of PM2.5 concentration levels, among other pollutants. PM2.5 is the dominant pollutant during haze episodes. The 1-hour PM2.5 concentrations reflect the PM2.5 levels averaged over one hour, and can give you an indication of the current air quality. However, the 1-hour PM2.5 concentration levels can be volatile and tend to fluctuate over the day especially during periods of transboundary haze. Short-term fluctuations will also be very heavily influenced by weather conditions. For example, there could be a short period of transiently high PM2.5, only to improve rapidly in the next one to two hours. Therefore, if you wish to use the 1-hour PM2.5 concentration, it is best used as a guide to adjust your immediate activities North Admirality, Kranji, Woodlands, Sembawang, Yishun, Yio Chu Kang, Seletar, Sengkang South Holland, Queenstown, Bukit Merah, Telok Blangah, Pasir Panjang, Sentosa, Bukit Timah, Newton, Orchard, City, Marina South East Serangoon, Punggol, Hougang, Tampines, Pasir Ris, Loyang, Simei, Kallang, Katong, East Coast, Macpherson, Bedok, Pulau Ubin, Pulau Tekong West Lim Chu Kang, Choa Chu Kang, Bukit Panjang, Tuas, Jurong East, Jurong West, Jurong Industrial Estate, Bukit Batok, Hillview, West Coast, Clementi Central Thomson, Marymount, Sin Ming, Ang Mo Kio, Bishan, Serangoon Gardens, MacRitchie, Toa Payoh Disclaimer: PSI Starboard App is developed without any involvement from NEA.