Haze@SG vs Local Haze

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.

Local Haze crowdsources outdoor air quality data from many different sources and delivers it to your iPhone and Apple Watch. In release 2.3, as a Local Haze subscriber, you can now get air quality readings “at a glance” on your Apple Watch, widgets on your phone, and notifications for a sensor where significant changes in air quality have been detected. About Local Haze Local Haze reports air quality data from a variety of sensors across six continents, including AirGradient, AirNow, PurpleAir, Sensor.Community and uRADMonitor. In addition to viewing current air quality conditions, using Local Haze allows you to share sensor maps displaying air quality readings anywhere in the world. The World Health Organization and the U.S. Environmental Protection Agency (EPA) have developed guidelines for safe air quality as impacted by chemical pollutants and particulate matter (PM). PM smaller than 10 micrometers poses problems because it can enter the bloodstream. Local Haze displays the level of smaller PM 2.5 particles, which pose the most significant health risk. Local Haze Apple Watch app If you have disabled Automatic App Install on your Apple Watch, you can follow these directions to manually install it: https://support.apple.com/en-ca/guide/watch/apd99e3c6a68/watchos Local Haze Widgets A Local Haze widget allows subscribers, at a glance, to see a snapshot of their favorite AQ sensor. A tap on the widget displays the Local Haze sensor details screen. For directions on how to add a widget, visit this page: https://localhaze.humanlogic.com/2023/07/22/adding-a-local-haze-widget/ Notifications in Local Haze To set a notification, subscribers can tap the bell icon on the sensor details screen. Notifications will be sent to your phone when the air quality changes. How Local Haze Displays Air Quality Data Local Haze displays the EPA’s Air Quality Index (AQI) and a confidence rating for each sensor reading. The confidence rating is a feature that is unique to Local Haze and depends on many factors, including sensor maintenance and data freshness. Each AQ sensor reading is displayed as a face icon according to the key below, with a badge on the lower right that represents a confidence rating: Green Face: Air quality is Good. Air quality is considered satisfactory, and air pollution poses little or no risk. Yellow Face: Air quality is Moderate. Air quality is acceptable. For some pollutants, there may 
be a moderate health concern. Orange Face: Air quality is Unhealthy for sensitive groups. The general public is not likely to be affected, but people with heart and lung disease, older adults, and children are at greater risk. Red Face: Air quality is Unhealthy Everyone may begin to experience some adverse health effects, and members of the sensitive groups may experience more serious effects. Black face mask with respirator: Air quality is Hazardous. Everyone may experience more serious health effects with possible emergency conditions. The entire population is likely to be affected. Note: The source for the above AQ index classification is from Air Quality Index (AQI) Basics - EPA: https://www.airnow.gov/aqi/aqi-basics/ The confidence rating badges are: Green badge with thumbs up: High confidence in the air sensor reading. Yellow badge with OK sign: OK confidence in the air sensor reading. Red badge with thumbs down: Low confidence in the air sensor reading. We hope you enjoy using Local Haze! If you have any feedback about Local Haze please email us at localhaze@humanlogic.com or visit https://localhaze.humanlogic.com/