Haze@SG vs SG Air

Haze@SG helps you quickly check air quality levels across Singapore. Stay updated with hourly AQI and PM2.5 readings, along with the 24-hour PSI, so you can make informed decisions throughout the day. The app is designed to be simple, fast, and easy to read at a glance. NEW! Local Air Quality Stations Explore additional AQI readings from local monitoring stations across Singapore, updated regularly. Find stations near you, see their distance from your location, and check the latest air quality conditions in different neighbourhoods. Maintained since 2013, Haze@SG continues to provide reliable haze updates with a clean and focused experience. Features: * 1-hour AQI readings across all regions * 1-hour PM2.5 levels for current conditions * 24-hour PSI based on NEA data * Local AQI readings from additional monitoring stations across Singapore * Find nearby monitoring stations using your location * Clear indicators to understand what the readings mean * Latest haze news and weather forecasts * Share current haze levels with friends and family * Alerts to stay informed Official regional air quality readings are sourced from NEA, while additional local station readings are provided by the World Air Quality Index (WAQI) project. PM2.5 readings reflect short-term air quality and may change throughout the day depending on weather conditions and haze levels. Haze@SG is independently developed and maintained. Your support helps cover server costs and ongoing improvements. If you find the app useful, you can support its continued development through a subscription. As a subscriber, you also enjoy an ad-free experience. Feedback and suggestions are welcome. You can reach us via email at support@hosaystudios.com or through the app. -------------------------------- Subscription Information Payment will be charged to your Apple ID account at confirmation of purchase. Your account will be charged for renewal within 24 hours prior to the end of the current period. Auto-renewal can be turned off at any time in your Apple ID account settings after purchase. No cancellation of the current subscription is allowed during an active subscription period. Subscription price: SGD 1.99 per month SGD 19.99 per year Prices may vary by country. Privacy Policy: http://hosaystudios.com/privacy.html Terms of Use: http://hosaystudios.com/terms.html -------------------------------- Note: This app is not affiliated with NEA. Data is sourced from publicly available information, and any inaccuracies should not be attributed to NEA.

Singapore Air quality report with 1-hr PSI/AQI, 24hr PSI/AQI, 1hr PM2.5(fine particulate matter), 24Hr PM2.5, 24Hr particulate matter (PM10), sulphur dioxide (SO2), nitrogen dioxide (NO2), ozone (O3), and carbon monoxide (CO). Features: - 1hr PSI/AQI Widget - NOTIFICATION service hourly on hazy day base on 1hr PM2.5 PSI/AQI > 100, 24hr PSI/AQI>100 or Sumatra Hotspot count>100 - supported PSI and AQI - Haze map with wind direction, hotspots location and haze coverage (Map update on evening everyday) - Line charts with 24hrs data including 24hr PSI/AQI, Sumatra Hotspot Count, 1hr PM2.5, 24Hr PM2.5, 24Hr PM10, 24Hr SO2, 1Hr NO2, 8Hr O3 and 8Hr CO. - Crowdsource air quality report - check out nearby air quality reported by app users. - Crowdsource photo - photo uploaded by app users. - SG Air Camera Notes: - 1hr PM2.5 PSI: We convert it by following formula from NEA and breakpoints of 24-hr PM2.5(ug/m3). - AQI breakpoints referred from The United States Environmental Protection Agency (EPA) - if you encounter error on Apple Watch, please reinstall apple watch app at Watch > SG Air.