SG Air
Singapore Air Quality Index
FreeOffers In-App Purchases
2.08for iPhone, iPad and more
Age Rating
SG Air Screenshots
About SG Air
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.
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.
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What's New in the Latest Version 2.08
Last updated on Nov 10, 2023
Old Versions
- minor bug fixing
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Version History
2.08
Nov 10, 2023
- minor bug fixing
2.07
Nov 9, 2023
- minor bug fixes
2.06
Oct 28, 2023
- minor bug fixes
2.05
Oct 24, 2023
- bug fixes
2.04
Oct 22, 2023
- Apple watch app changed 3hr PSI to 1hr PSI.
- update coding to support iOS 17
- fix missing hotspots icon in the haze map.
- fix haze map image not load on main page.
- update coding to support iOS 17
- fix missing hotspots icon in the haze map.
- fix haze map image not load on main page.
2.03
Mar 9, 2021
- minor bug fixes
2.02
Apr 6, 2020
- minor bug fixes
2.01
Mar 29, 2020
- bug fixes: prevent app crashed on Chart page
- prevent app crash from users with location permission not granted
- chart page: long press region button will show selected region only
- prevent app crash from users with location permission not granted
- chart page: long press region button will show selected region only
2.00
Mar 26, 2020
- redesign whole app
- New Features: Crowdsource air quality report, Crowdsource photo, SG Air Camera and more info on haze map.
- New Features: Crowdsource air quality report, Crowdsource photo, SG Air Camera and more info on haze map.
1.15
Jul 25, 2019
- minor bug fixes
1.14
May 14, 2019
- fixed haze map
1.13
Jun 2, 2018
minor updates
1.12
Feb 20, 2017
New items:
- 1-hr ug/m3
- The health impact of haze
- 1-hr psi max - Widget
- 1-hr ug/m3
- The health impact of haze
- 1-hr psi max - Widget
1.11
Sep 22, 2016
- bugs fixes
1.10
Sep 20, 2016
- bug fixes for iOS 10 users
1.9
Aug 30, 2016
Minor bug fixes:
- users with 4G network should be able to use now.
- improved sub-index notification
- 3hr PSI Today Extension
*if data error on apple watch or Today Extension, please disable & enable again. Sorry for inconvenience.
- users with 4G network should be able to use now.
- improved sub-index notification
- 3hr PSI Today Extension
*if data error on apple watch or Today Extension, please disable & enable again. Sorry for inconvenience.
1.8
Oct 13, 2015
- new feature: switch PSI to AQI
- notification for AQI
- bar chart for AQI
- bug fixes: move line chart to background, banners move to bottom
Notes: if you encounter error on Apple Watch, please reinstall apple watch app at Watch > SG Air.
- notification for AQI
- bar chart for AQI
- bug fixes: move line chart to background, banners move to bottom
Notes: if you encounter error on Apple Watch, please reinstall apple watch app at Watch > SG Air.
1.7
Oct 10, 2015
- fix bar chart sorting
- speed up download
- add background line chart
Notes: if you encounter error on Apple Watch, please reinstall apple watch app at Watch > SG Air.
- speed up download
- add background line chart
Notes: if you encounter error on Apple Watch, please reinstall apple watch app at Watch > SG Air.
1.6
Oct 4, 2015
- add 1-hr PM2.5 to summary list
- add 10 bar charts
- bugs fixes
- add in-app purchase to remove ads
- add 10 bar charts
- bugs fixes
- add in-app purchase to remove ads
1.5
Jul 8, 2015
- fixed haze map
- display data time of all index & sub-index
- free notification service
- support Apple Watch
- display data time of all index & sub-index
- free notification service
- support Apple Watch
1.4
Oct 29, 2014
bug fixes
1.3
Oct 23, 2014
- add 1-hr PM2.5 sub-index
- auto refresh data when app show from background
- auto refresh data when app show from background
1.2
Oct 2, 2014
- update UI
- implement notification service for iOS 8
- implement notification service for iOS 8
1.1
Jun 21, 2014
- remove cached for fullscreen haze map
- add simple animation
- fixed minor bugs
- add simple animation
- fixed minor bugs
1.0
Jun 7, 2014
SG Air FAQ
SG Air is available in regions other than the following restricted countries:
India
SG Air supports English
SG Air contains in-app purchases. Please check the pricing plan as below:
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$3.99
Click here to learn how to download SG Air in restricted country or region.
Check the following list to see the minimum requirements of SG Air.
iPhone
Requires iOS 13.0 or later.
iPad
Requires iPadOS 13.0 or later.
Apple Watch
Requires watchOS 10.0 or later.
iPod touch
Requires iOS 13.0 or later.
