30 Sep – 6 Oct 2026 · Malaysia

Putrajaya weekly air quality

US AQI · PM2.5 · 24-hour source averages

129.7Weekly mean AQI · Unhealthy for Sensitive Groups

Official DOE API mean: 115.8. Calculated separately from reported official observations.

Each DOE observation identified as PM2.5 is converted using the published API formula and US AQI breakpoints. This is not an official all-pollutant AQI or NowCast. Calculation details

149 eligible observations · 0 excluded.

+40.9 AQI compared with the previous week’s eligible mean of 88.8.

Peak AQI: 171 at Putrajaya · 30 Sept 2026, 00:00 (UTC+8).

Daily US AQI (PM2.5)

Low 88High 171AQI

30 Sept6 Oct

6 OctDaily mean · Peak 152152Avg AQI

Based on 5 hourly readings.

Daily and hourly means use eligible observations across the selected locations. Each observation uses a 24-hour PM2.5 average.

Export AQI CSV

Means and peaks use only converted observations. Missing days remain gaps.

Day	Mean AQI	Peak AQI	Eligible / excluded
2026-09-30	163.5Unhealthy	171	24 / 0
2026-10-01	146.5Unhealthy for Sensitive Groups	155	24 / 0
2026-10-02	97.5Moderate	117	24 / 0
2026-10-03	96.2Moderate	109	24 / 0
2026-10-04	120.8Unhealthy for Sensitive Groups	136	24 / 0
2026-10-05	149Unhealthy for Sensitive Groups	152	24 / 0
2026-10-06	152Unhealthy	152	5 / 0

Hourly means (UTC+8)

Day	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
2026-09-30	171	171	170	170	170	170	170	170	170	169	167	166	163	160	159	158	159	158	156	156	155	155	155	155
2026-10-01	155	155	155	154	154	154	154	152	152	152	152	152	152	152	151	148	146	143	139	136	134	130	124	120
2026-10-02	117	113	111	111	109	107	105	103	99	97	97	94	93	91	91	90	88	88	88	88	88	90	91	91
2026-10-03	91	91	91	90	90	90	91	91	93	94	93	93	94	94	96	97	99	99	101	103	105	107	107	109
2026-10-04	109	109	109	111	111	113	113	115	115	117	118	120	122	124	126	128	128	128	128	128	130	130	132	136
2026-10-05	138	139	142	144	147	148	149	149	151	151	152	152	151	151	151	150	149	151	152	152	152	152	152	152
2026-10-06	152	152	152	152	152	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 34

Unhealthy for Sensitive Groups: 57

Unhealthy: 58

Very Unhealthy: 0

Hazardous: 0

US AQI scale
AQI	Category
0–50	Good
51–100	Moderate
101–150	Unhealthy for Sensitive Groups
151–200	Unhealthy
201–300	Very Unhealthy
301+	Hazardous

Putrajaya air quality.
Weekly station review.

30 Sep – 6 Oct 20267 days · Putrajaya

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Putrajaya, Putrajaya

During the week of 30 Sep – 6 Oct 2026, air quality at Putrajaya averaged an Air Pollutant Index (API) of 115.8 (Unhealthy). Readings peaked at 166.

Station weekly average

115.8API

Unhealthy · Tidak Sihat

Daily averages78 – 160.3 APIWed → Tue

Explore the week

Week's peak reading: 166UnhealthyPeak during 7-day window
Rank in Putrajaya: #1of 1 stationsState avg: 115.8 API
Good to Moderate air: 52%of hourly readings149 readings recorded
National standing: #63of 68 stationsNational avg: 81.5 API

Seven days of station air quality

Pergerakan purata harian dan julat bacaan sepanjang minggu

Archived API · Malaysia TimePoint, tap or use ← → to inspect

National averageStation peakMin–max rangeAPI bands7 of 7 points · 0–200 API

The average follows all available readings each day. The range spans the lowest and highest station readings; a national average can hide local peaks.

View chart data as a table

Archived national API, daily
Date / time	Average	Minimum	Peak
Wed, 30 Sep	160.3	154	166
Thu, 1 Oct	136.2	91	154
Fri, 2 Oct	78.6	73	89
Sat, 3 Oct	78	74	85
Sun, 4 Oct	91.2	85	99
Mon, 5 Oct	143	100	152
Tue, 6 Oct	152	152	152

The week, hour by hour

Bacaan setiap jam dari tengah malam hingga 11 malam

Read each row from midnight to 11pm, in Malaysia Time. Hourly air quality at Putrajaya shows local patterns like traffic peaks and afternoon haze accumulation.

050100150200APIBrighter cells ran hazier than the rest of this week (73 – 166 API)

Haziest hour of the week: Wed at 00:00 MYT, averaging API 166 nationwide.

View the hourly figures as a table

National average API by hour, Malaysia Time
Day	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	166	166	165	165	165	165	165	165	165	164	163	162	160	158	157	156	157	156	155	155	154	154	154	154
Thu	154	154	154	153	153	153	153	152	152	152	152	152	152	152	151	143	132	122	106	99	98	96	93	91
Fri	89	87	86	86	85	84	83	82	80	79	79	77	76	75	75	74	73	73	73	73	73	74	75	75
Sat	75	75	75	74	74	74	75	75	76	77	76	76	77	77	78	79	80	80	81	82	83	84	84	85
Sun	85	85	85	86	86	87	87	88	88	89	90	91	92	93	94	95	95	95	95	95	96	96	97	99
Mon	100	106	116	127	136	140	144	147	151	151	152	152	151	151	151	148	147	151	152	152	152	152	152	152
Tue	152	152	152	152	152	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana52%78
UnhealthyTidak Sihat48%71
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 149 hourly station readings.

What it meant for this area

Panduan kesihatan mengikut kategori kualiti udara

Limit prolonged outdoor activity. Children, older adults, pregnant women and people with respiratory or heart conditions should stay indoors where possible. A well-fitted N95 mask helps outdoors.

Hadkan aktiviti luar yang berpanjangan. Kanak-kanak, warga emas, ibu mengandung dan pesakit pernafasan atau jantung dinasihatkan berada di dalam bangunan. Pelitup muka N95 membantu di luar.

Malaysia API scale · Skala IPU Malaysia
API	Category	Kategori
0–50	Good	Baik
51–100	Moderate	Sederhana
101–200	Unhealthy	Tidak Sihat
201–300	Very Unhealthy	Sangat Tidak Sihat
301+	Hazardous	Berbahaya

Nearby monitoring stations around Putrajaya

Perbandingan purata mingguan dengan stesen berhampiran

Banting92 API
Moderate13 away
Nilai124.8 API
Unhealthy17 away
Cheras120.6 API
Unhealthy21 away
Johan Setia119.1 API
Unhealthy23 away

Day	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	166	166	165	165	165	165	165	165	165	164	163	162	160	158	157	156	157	156	155	155	154	154	154	154
Thu	154	154	154	153	153	153	153	152	152	152	152	152	152	152	151	143	132	122	106	99	98	96	93	91
Fri	89	87	86	86	85	84	83	82	80	79	79	77	76	75	75	74	73	73	73	73	73	74	75	75
Sat	75	75	75	74	74	74	75	75	76	77	76	76	77	77	78	79	80	80	81	82	83	84	84	85
Sun	85	85	85	86	86	87	87	88	88	89	90	91	92	93	94	95	95	95	95	95	96	96	97	99
Mon	100	106	116	127	136	140	144	147	151	151	152	152	151	151	151	148	147	151	152	152	152	152	152	152
Tue	152	152	152	152	152	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Day	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	166	166	165	165	165	165	165	165	165	164	163	162	160	158	157	156	157	156	155	155	154	154	154	154
Thu	154	154	154	153	153	153	153	152	152	152	152	152	152	152	151	143	132	122	106	99	98	96	93	91
Fri	89	87	86	86	85	84	83	82	80	79	79	77	76	75	75	74	73	73	73	73	73	74	75	75
Sat	75	75	75	74	74	74	75	75	76	77	76	76	77	77	78	79	80	80	81	82	83	84	84	85
Sun	85	85	85	86	86	87	87	88	88	89	90	91	92	93	94	95	95	95	95	95	96	96	97	99
Mon	100	106	116	127	136	140	144	147	151	151	152	152	151	151	151	148	147	151	152	152	152	152	152	152
Tue	152	152	152	152	152	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—