Readings on 03 Jul 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	5(3)	44(44)	42(-)	34(15)	0.5(5)	30(71)
South	13(8)	39(39)	11(-)	27(11)	0.5(5)	27(68)
East	9(5)	34(34)	5(-)	40(17)	0.5(5)	27(68)
West	35(22)	47(47)	17(-)	30(13)	0.6(6)	32(73)
Central	11(7)	37(37)	38(-)	28(12)	0.5(5)	24(64)

1-hr PM_2.5 (µg/m³)^b Readings on 02 Jul 2015

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Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	25	19	27	23	23	26	28	37	39	41	44	50
South	27	20	16	23	24	22	26	31	26	30	46	49
East	28	25	25	25	25	26	25	30	28	26	27	30
West	29	31	32	26	26	26	29	33	29	50	40	36
Central	21	23	27	20	21	25	19	28	22	25	17	36
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	37	32	29	30	28	23	17	17	22	31	38	32
South	20	24	19	20	32	17	32	38	31	30	24	26
East	40	30	18	25	23	25	21	37	30	28	31	29
West	43	28	31	24	29	31	29	31	33	36	32	31
Central	27	29	26	19	28	20	31	27	19	17	21	21

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 02 Jul 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	68	66	65	64	65	64	65	68	70	73	74	79
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	78	76	70	66	66	66	67	67	69	69	69	69

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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