Readings on 16 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	10(6)	21(21)	52(-)	27(11)	0.4(4)	11(48)
South	13(8)	23(23)	32(-)	19(8)	0.5(5)	14(53)
East	11(7)	18(18)	17(-)	21(9)	0.6(6)	12(48)
West	31(19)	26(26)	38(-)	24(10)	0.3(3)	13(52)
Central	7(4)	20(20)	42(-)	20(9)	0.7(7)	9(39)

1-hr PM_2.5 (µg/m³)^b Readings on 15 Jul 2015

View reading for:

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	7	3	5	7	9	5	9	9	9	9	15	14
South	7	3	6	9	5	7	9	12	9	14	20	13
East	6	11	8	5	8	7	7	6	11	12	10	12
West	13	3	7	3	13	5	6	10	13	17	15	16
Central	5	4	7	6	4	6	5	17	9	11	10	6
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	10	16	16	25	22	13	10	11	10	10	12	17
South	11	9	16	18	16	14	15	26	24	33	25	16
East	13	9	14	8	15	11	22	20	12	17	18	19
West	22	12	13	23	16	22	16	16	6	15	17	15
Central	11	9	11	10	14	16	12	14	7	6	15	11

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 15 Jul 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	26	27	27	24	29	27	29	33	39	47	51	52
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	52	51	52	53	55	56	55	55	54	54	54	56

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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