Readings on 26 Aug 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)	60(55)	51(-)	9(4)	0.9(9)	42(85)
South	8(5)	58(55)	17(-)	22(9)	0.6(6)	41(84)
East	14(9)	49(49)	11(-)	38(16)	0.6(6)	38(80)
West	34(21)	62(57)	35(-)	8(4)	0.7(7)	44(87)
Central	7(4)	53(52)	28(-)	19(8)	0.5(5)	37(79)

1-hr PM_2.5 (µg/m³)^b Readings on 25 Aug 2015

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Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	33	36	38	39	39	31	28	32	32	36	32	40
South	41	33	46	37	38	40	34	36	44	28	29	38
East	41	39	40	36	36	33	30	32	36	34	32	34
West	35	43	37	39	35	35	32	38	43	46	41	45
Central	37	36	35	29	28	31	27	30	33	26	30	25
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	56	47	30	42	55	52	66	61	57	56	38	28
South	57	56	45	46	57	66	40	42	28	33	31	34
East	46	52	41	39	53	51	40	34	28	37	29	32
West	62	55	50	53	58	58	60	52	46	34	35	27
Central	52	56	37	56	43	63	55	39	30	37	27	29

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 25 Aug 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	80	79	80	80	79	77	75	74	76	77	77	76
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	84	92	93	91	90	97	99	96	88	84	79	76

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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