Readings on 05 Sep 2015

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 PM_2.5 (µg/m³)
North	4(2)	50(50)	47(-)	13(5)	0.6(6)	30(71)
South	14(9)	50(50)	34(-)	10(4)	0.6(6)	34(76)
East	16(10)	41(41)	23(-)	12(5)	0.6(6)	29(71)
West	21(13)	51(51)	42(-)	13(6)	0.5(5)	36(78)
Central	8(5)	47(47)	33(-)	16(7)	0.7(7)	29(70)

1-hr PM_2.5 (µg/m³)^b Readings on 04 Sep 2015

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Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	31	51	34	15	20	29	29	32	39	40	35	34
South	50	44	36	32	25	41	36	38	31	24	27	25
East	37	41	18	13	13	21	22	22	29	26	28	32
West	42	47	44	40	36	38	35	42	45	36	36	36
Central	37	38	40	26	25	31	25	20	26	22	26	27
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	42	43	37	32	11	20	20	18	18	20	31	39
South	34	38	28	33	28	26	20	22	38	51	44	49
East	40	40	35	23	30	21	23	21	40	44	47	40
West	46	38	38	20	18	23	30	27	25	39	40	45
Central	39	35	25	29	27	18	17	22	26	33	40	39

Note:
^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 PM_2.5.

3-hr PSI Readings from 1am to 12am on 04 Sep 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	84	86	82	76	69	68	70	72	73	73	73	72
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	76	79	80	75	68	64	62	62	65	71	78	83

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.

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