Home   Haze Updates   Pollutant Concentrations

Pollutant Concentrations

Readings on 25 Aug 2016

View reading for:

Region 24-hr Sulphur dioxide
(µg/m3)
24-hr PM10
(µg/m3)
1-hr Nitrogen dioxide
(µg/m3)a
8-hr Ozone
(µg/m3)
8-hr Carbon monoxide
(mg/m3)
24-hr PM2.5
(µg/m3)
North 16(10) 23(23) 43(-) 12(5) 0.4(4) 14(53)
South 17(11) 22(22) 24(-) 10(4) 0.2(2) 12(48)
East 9(5) 17(17) 16(-) 17(7) 0.2(2) 11(45)
West 12(8) 19(19) 20(-) 17(7) 0.3(3) 12(48)
Central 15(9) 18(18) 35(-) 8(3) 0.2(2) 12(51)

Note: The numbers in brackets refer to PSI sub-indices.

24-hr Sulphur Dioxide (µg/m3) Readings on 25 Aug 2016

View reading for:

Time 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm
North 16(10) - - - - - - - - - - -
South 17(11) - - - - - - - - - - -
East 9(5) - - - - - - - - - - -
West 12(8) - - - - - - - - - - -
Central 15(9) - - - - - - - - - - -
Time 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
North - - - - - - - - - - - -
South - - - - - - - - - - - -
East - - - - - - - - - - - -
West - - - - - - - - - - - -
Central - - - - - - - - - - - -

Note:
The numbers in brackets refer to PSI sub-indices.
a Sub-index for nitrogen dioxide is reported only when the 1-hour concentration exceeds 1130 µg/m3.
b There is no sub-index for 1-h PM2.5.

3-hr PSI Readings from 1am to 12am on 25 Aug 2016

Time 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm
3-hr PSI 37 - - - - - - - - - - -
Time 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
3-hr PSI - - - - - - - - - - - -



The real-time data is automatically published as soon as it is generated by our air monitoring stations. The data is subject to verification and correction subsequently if necessary.