Readings on 28 Jun 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)	21(21)	34(-)	27(11)	0.4(4)	11(45)
South	6(4)	22(22)	6(-)	23(10)	0.4(4)	8(35)
East	7(4)	19(19)	13(-)	28(12)	0.7(7)	11(46)
West	75(47)	33(33)	26(-)	26(11)	0.5(5)	14(53)
Central	5(3)	23(23)	28(-)	24(10)	0.5(5)	8(35)

1-hr PM_2.5 (µg/m³)^b Readings on 27 Jun 2015

View reading for:

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

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 27 Jun 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	32	30	32	33	35	32	35	38	40	38	41	43
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	50	51	53	53	54	53	53	53	49	42	37	38

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.

Contact Us

Hotline	1800 CALL NEA (1800-225 5632)
Weather	6542 7788
Fax	6235 2611
Feedback

Our Location

Main Office
Customer Service Centre
Other Offices

National Environment Agency
40 Scotts Road, #13-00
Environment Building
Singapore 228231

Customer Service Centre
40 Scotts Road #02-00
Environment Building
Singapore 228231
Customer Service Centre (Hawkers)
HDB Hub, East Wing, #26-01
480 Lorong 6 Toa Payoh
Singapore 310480