Readings on 04 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	3(2)	66(59)	36(-)	29(12)	0.7(7)	46(90)
South	7(4)	66(58)	34(-)	30(13)	0.7(7)	49(93)
East	12(7)	63(57)	17(-)	36(15)	0.8(8)	52(96)
West	22(14)	64(58)	39(-)	27(11)	0.5(5)	48(92)
Central	5(3)	61(56)	24(-)	40(17)	0.6(6)	41(84)

1-hr PM_2.5 (µg/m³)^b Readings on 03 Sep 2015

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Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	30	40	47	43	39	45	45	49	55	69	68	63
South	41	39	42	48	48	45	51	51	63	61	61	51
East	31	42	44	47	47	43	48	65	62	62	62	63
West	29	36	42	39	42	44	51	66	64	71	61	58
Central	28	36	36	40	40	40	40	48	49	55	57	47
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	61	56	49	45	46	42	38	39	28	38	45	33
South	43	49	37	46	47	65	49	44	49	39	46	56
East	68	69	63	68	60	53	45	51	29	46	33	41
West	58	54	51	40	46	47	53	30	44	39	43	53
Central	46	47	41	38	36	41	36	38	33	38	37	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 03 Sep 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	71	75	80	84	86	86	88	93	98	105	107	106
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	103	101	97	94	91	92	90	88	83	82	82	85

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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