Readings on 10 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)	55(53)	56(-)	5(2)	1.5(15)	37(79)
South	24(15)	49(49)	54(-)	10(4)	1.2(12)	36(78)
East	19(12)	50(50)	38(-)	6(2)	1.2(12)	35(77)
West	14(9)	50(50)	14(-)	19(8)	1(10)	36(78)
Central	14(9)	47(47)	63(-)	10(4)	1.3(13)	31(73)

1-hr PM_2.5 (µg/m³)^b Readings on 09 Sep 2015

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Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	12	13	20	21	21	22	22	23	29	28	30	40
South	25	23	18	22	21	18	20	12	22	24	24	30
East	19	12	13	17	22	17	23	15	19	17	19	29
West	23	25	19	21	21	30	24	22	24	24	31	41
Central	17	20	14	16	12	15	15	14	19	17	24	29
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	51	70	46	36	21	42	56	60	54	54	64	56
South	44	60	51	53	51	46	48	54	59	55	39	53
East	44	60	63	64	40	45	43	49	49	57	52	54
West	61	66	29	31	42	49	46	48	44	50	48	46
Central	38	53	43	39	42	34	47	47	51	48	46	55

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 09 Sep 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	65	60	58	58	58	60	60	59	60	61	64	68
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	78	91	96	95	86	85	87	91	94	96	95	96

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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