30 Sep – 6 Oct 2026 · Malaysia

IPD Serian weekly air quality

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

120.4Weekly mean AQI · Unhealthy for Sensitive Groups

Official DOE API mean: 99. 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

166 eligible observations · 0 excluded.

-57.9 AQI compared with the previous week’s eligible mean of 178.3.

Peak AQI: 167 at IPD Serian · 30 Sept 2026, 00:00 (UTC+8).

Daily US AQI (PM2.5)

Low 65High 167AQI

30 Sept6 Oct

6 OctDaily mean · Peak 147136.6Avg AQI

Based on 22 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	112.8Unhealthy for Sensitive Groups	167	24 / 0
2026-10-01	72.1Moderate	84	24 / 0
2026-10-02	106.7Unhealthy for Sensitive Groups	136	24 / 0
2026-10-03	143.9Unhealthy for Sensitive Groups	152	24 / 0
2026-10-04	131.4Unhealthy for Sensitive Groups	139	24 / 0
2026-10-05	140.7Unhealthy for Sensitive Groups	152	24 / 0
2026-10-06	136.6Unhealthy for Sensitive Groups	147	22 / 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	167	165	163	160	158	155	154	148	139	128	118	109	107	99	90	80	77	75	74	71	70	67	67	65
2026-10-01	65	65	65	65	65	67	67	67	67	67	68	70	71	72	74	74	75	77	78	80	81	83	84	84
2026-10-02	86	87	88	88	90	91	93	93	94	97	99	103	103	105	107	113	117	122	124	128	130	132	134	136
2026-10-03	138	139	139	140	140	141	141	143	143	144	145	146	150	151	152	152	151	147	145	144	143	141	140	139
2026-10-04	139	138	138	138	138	136	136	136	134	134	132	130	128	128	126	124	124	124	126	128	128	128	130	130
2026-10-05	130	130	132	132	132	132	132	134	134	134	136	140	143	144	147	148	150	152	152	151	150	149	147	145
2026-10-06	144	143	142	140	139	138	136	136	134	134	134	130	126	126	128	130	134	136	140	143	146	147	—	—

Observation categories

Good: 0

Moderate: 46

Unhealthy for Sensitive Groups: 106

Unhealthy: 14

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

IPD Serian air quality.
Weekly station review.

30 Sep – 6 Oct 20267 days · Sarawak

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen IPD Serian, Sarawak

During the week of 30 Sep – 6 Oct 2026, air quality at IPD Serian averaged an Air Pollutant Index (API) of 99 (Moderate). Readings peaked at 163.

Station weekly average

99API

Moderate · Sederhana

Daily averages61.8 – 124.7 APIWed → Tue

Explore the week

Week's peak reading: 163UnhealthyPeak during 7-day window
Rank in Sarawak: #13of 13 stationsState avg: 73.2 API
Good to Moderate air: 66%of hourly readings166 readings recorded
National standing: #51of 68 stationsNational avg: 83.7 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 · 0–175 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	100.5	57	163
Thu, 1 Oct	61.8	57	70
Fri, 2 Oct	83.5	71	99
Sat, 3 Oct	124.7	100	152
Sun, 4 Oct	96.9	93	104
Mon, 5 Oct	119.5	96	152
Tue, 6 Oct	106.6	94	139

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 IPD Serian shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100125150175APIBrighter cells ran hazier than the rest of this week (57 – 163 API)

Haziest hour of the week: Wed at 00:00 MYT, averaging API 163 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	163	161	160	158	156	154	153	140	105	95	90	85	84	80	74	67	65	64	63	61	60	58	58	57
Thu	57	57	57	57	57	58	58	58	58	58	59	60	61	62	63	63	64	65	66	67	68	69	70	70
Fri	71	72	73	73	74	75	76	76	77	79	80	82	82	83	84	87	89	92	93	95	96	97	98	99
Sat	100	106	107	111	110	112	114	120	123	126	131	135	149	151	152	152	151	139	128	124	120	114	111	107
Sun	104	102	100	100	100	99	99	99	98	98	97	96	95	95	94	93	93	93	94	95	95	95	96	96
Mon	96	96	97	97	97	97	97	98	98	98	99	108	123	125	136	142	150	152	152	151	149	144	136	130
Tue	126	121	117	110	104	100	99	99	98	98	98	96	94	94	95	96	98	99	109	123	132	139	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana66%110
UnhealthyTidak Sihat34%56
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 166 hourly station readings.

What it meant for this area

Panduan kesihatan mengikut kategori kualiti udara

Air quality is acceptable. People with asthma, heart or lung conditions should reduce prolonged or heavy outdoor exertion.

Kualiti udara sederhana. Pesakit asma, jantung atau paru-paru dinasihatkan mengurangkan aktiviti berat di luar bangunan.

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 IPD Serian

Perbandingan purata mingguan dengan stesen berhampiran

Samarahan90.3 API
Moderate33 away
Kuching81.4 API
Moderate48 away
Sri Aman88.2 API
Moderate100 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	163	161	160	158	156	154	153	140	105	95	90	85	84	80	74	67	65	64	63	61	60	58	58	57
Thu	57	57	57	57	57	58	58	58	58	58	59	60	61	62	63	63	64	65	66	67	68	69	70	70
Fri	71	72	73	73	74	75	76	76	77	79	80	82	82	83	84	87	89	92	93	95	96	97	98	99
Sat	100	106	107	111	110	112	114	120	123	126	131	135	149	151	152	152	151	139	128	124	120	114	111	107
Sun	104	102	100	100	100	99	99	99	98	98	97	96	95	95	94	93	93	93	94	95	95	95	96	96
Mon	96	96	97	97	97	97	97	98	98	98	99	108	123	125	136	142	150	152	152	151	149	144	136	130
Tue	126	121	117	110	104	100	99	99	98	98	98	96	94	94	95	96	98	99	109	123	132	139	—	—

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	163	161	160	158	156	154	153	140	105	95	90	85	84	80	74	67	65	64	63	61	60	58	58	57
Thu	57	57	57	57	57	58	58	58	58	58	59	60	61	62	63	63	64	65	66	67	68	69	70	70
Fri	71	72	73	73	74	75	76	76	77	79	80	82	82	83	84	87	89	92	93	95	96	97	98	99
Sat	100	106	107	111	110	112	114	120	123	126	131	135	149	151	152	152	151	139	128	124	120	114	111	107
Sun	104	102	100	100	100	99	99	99	98	98	97	96	95	95	94	93	93	93	94	95	95	95	96	96
Mon	96	96	97	97	97	97	97	98	98	98	99	108	123	125	136	142	150	152	152	151	149	144	136	130
Tue	126	121	117	110	104	100	99	99	98	98	98	96	94	94	95	96	98	99	109	123	132	139	—	—