Readings on 08 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	6(4)	30(30)	54(-)	8(4)	0.6(6)	18(58)
South	15(9)	27(27)	55(-)	17(7)	0.5(5)	15(54)
East	12(7)	21(21)	19(-)	14(6)	0.4(4)	16(55)
West	29(18)	37(37)	47(-)	23(10)	0.4(4)	23(64)
Central	6(4)	24(24)	50(-)	13(6)	0.6(6)	14(54)

1-hr PM_2.5 (µg/m³)^b Readings on 07 Aug 2015

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Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	19	23	20	16	25	21	19	24	24	17	12	19
South	5	13	11	15	11	16	13	11	18	8	15	26
East	13	12	15	14	9	14	15	16	14	20	22	20
West	30	30	16	20	24	21	22	26	26	31	30	30
Central	11	14	13	14	13	10	10	17	19	12	19	16
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	28	20	17	11	17	9	19	20	14	9	15	17
South	32	12	8	21	11	6	17	14	12	20	21	17
East	29	16	12	14	13	6	19	16	16	11	20	18
West	25	12	19	26	18	20	21	19	26	21	19	26
Central	22	12	8	17	16	6	20	12	14	11	20	18

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 07 Aug 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	56	56	56	56	55	56	56	57	58	59	59	60
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	63	62	58	54	54	53	54	54	57	55	56	57

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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