Readings on 14 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)	26(26)	39(-)	22(9)	0.5(5)	15(54)
South	11(7)	25(25)	38(-)	20(8)	0.4(4)	15(55)
East	10(6)	21(21)	18(-)	22(9)	0.6(6)	13(53)
West	46(29)	34(34)	7(-)	33(14)	0.8(8)	20(59)
Central	8(5)	23(23)	31(-)	28(12)	0.2(2)	12(49)

1-hr PM_2.5 (µg/m³)^b Readings on 13 Jul 2015

View reading for:

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
North	6	7	6	6	9	12	11	15	12	13	17	20
South	7	13	13	12	9	11	7	12	14	17	17	18
East	11	9	13	10	12	11	7	16	12	12	11	10
West	14	10	11	10	15	8	12	17	10	18	22	34
Central	12	9	8	8	7	12	4	11	16	10	10	17
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
North	23	26	23	16	19	23	22	21	20	12	10	15
South	18	14	18	16	16	15	26	35	24	13	17	9
East	21	17	12	18	18	12	17	18	14	12	15	14
West	34	32	30	35	29	20	27	18	19	15	13	14
Central	12	22	10	19	14	11	17	16	9	7	11	9

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 13 Jul 2015

Time	1am	2am	3am	4am	5am	6am	7am	8am	9am	10am	11am	12pm
3-hr PSI	44	42	41	41	41	42	41	47	50	53	53	56
Time	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm	10pm	11pm	12am
3-hr PSI	59	61	61	60	59	58	59	60	60	56	53	51

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