Readings on 07 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	6(4)	72(61)	40(-)	46(20)	0.6(6)	53(97)
South	11(7)	67(59)	32(-)	45(19)	0.6(6)	52(96)
East	13(8)	66(59)	18(-)	40(17)	0.6(6)	48(91)
West	23(15)	77(64)	29(-)	47(20)	0.6(6)	60(105)
Central	9(6)	64(58)	25(-)	55(24)	0.6(6)	46(90)

1-hr PM_2.5 (µg/m³)^b Readings on 06 Sep 2015

View reading for:

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	36	49	61	67	61	53	51	54	57	48	41	48
South	60	64	55	67	60	55	62	52	45	40	44	34
East	52	58	72	60	48	44	45	54	42	40	40	47
West	59	52	54	55	60	52	62	59	56	53	55	62
Central	47	50	59	55	44	46	45	43	46	37	42	42
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	52	63	90	110	64	39	32	45	38	36	42	33
South	51	45	67	52	51	56	65	55	61	44	32	33
East	48	42	50	45	48	54	54	53	39	47	36	28
West	55	59	101	105	78	70	68	56	36	48	44	32
Central	53	57	70	68	44	40	48	44	41	35	30	27

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 06 Sep 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	94	97	100	104	104	100	97	96	96	92	89	88
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	91	94	106	114	116	107	99	96	93	89	83	79

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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