Readings on 05 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)	30(30)	43(-)	29(12)	0.6(6)	19(59)
South	15(9)	31(31)	25(-)	40(17)	0.4(4)	20(60)
East	15(9)	25(25)	3(-)	44(19)	0.3(3)	19(58)
West	46(29)	37(37)	32(-)	38(16)	0.9(9)	24(64)
Central	16(10)	28(28)	50(-)	33(14)	0.3(3)	18(57)

1-hr PM_2.5 (µg/m³)^b Readings on 04 Jul 2015

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Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	12	21	19	19	17	21	26	24	13	5	8	11
South	28	14	20	14	18	23	33	36	13	9	5	10
East	19	21	19	19	16	23	28	38	23	5	5	8
West	30	27	22	27	17	30	53	47	8	5	1	6
Central	15	19	20	17	22	15	26	33	17	6	3	9
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	5	21	31	24	24	31	27	23	25	23	13	16
South	13	24	12	26	21	33	25	11	20	44	16	16
East	16	21	13	15	20	28	19	16	21	19	18	16
West	15	28	25	34	32	32	22	23	20	20	24	23
Central	10	31	13	15	23	21	20	15	16	20	18	22

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 04 Jul 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	61	60	60	60	59	60	65	72	69	59	35	27
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	36	55	58	63	62	66	66	63	60	61	61	61

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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