Carbon monoxide response
Shows how strongly the monitor responds to carbon monoxide. It is a sensor response, rather than a measured gas concentration.
Checking for readings
AIR READINGS, MADE CLEAR
A clearer view of the air.
Latest readings and trends from the Aerovision monitoring station.
Measurements reflect conditions at this station.
ONE MONITORING STATION
Checks automatically every 20 seconds while this page is visible. No need to refresh.
THE READINGS, EXPLAINEDWaiting for readings
WHAT THE LAST READINGS SHOWED
Within referenceElevatedHighNo current data
Sound notifications
OffHear a chime when a recent reading rises above the station’s reference levels.
Sound is off for this visit.
Keep this page open and visible. Chimes repeat every minute until silenced or readings fall within reference levels. Browser settings may mute sound.
Latest station readings Waiting for readings
Last recorded —Colors compare readings with the station’s reference levels. They are not an official Air Quality Index (AQI) or a guarantee of safe air. This monitor and its notifications do not replace a certified gas or carbon monoxide alarm.
THE BIGGER PICTURE
Changes over time
See how readings at the station have changed.
Waiting for readings
The trend will appear when recorded readings are available.
Loading recorded readings…Times shown in GMT+8
Lowest recorded—
Average reading—
Highest recorded—
Readings included—
MAKE SENSE OF THE NUMBERS
What the readings mean
Four readings offer different views of the air at the station.
Air sensor response
Helps reveal changes in the air’s composition. A higher number means a stronger response, rather than identifying one pollutant.
Combustible gas response
Shows the monitor’s response to gases such as LPG. It cannot confirm which gas is present or how much there is.
Fine particles · PM2.5
Measures the concentration of tiny particles in micrograms per cubic metre. A higher number means more fine particles in that reading.
“Within reference” means a reading is at or below the station’s first reference level. “Elevated” and “High” mark readings above its first and second reference levels. Older, missing, or unverified readings cannot describe the air right now.
How readings are measured
Technical details and the station’s configured reference levels are shown below. The gas readings use raw sensor counts and have not been converted into gas concentrations. The reference colors are not an official AQI classification.
A missing reading remains unavailable. A recorded PM2.5 zero is unverified because the station may also report zero when a particle reading fails.