30 Sep – 6 Oct 2026 · Malaysia

Samalaju weekly air quality

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

85.7Weekly mean AQI · Moderate

Official DOE API mean: 70.6. 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

162 eligible observations · 0 excluded.

-20.9 AQI compared with the previous week’s eligible mean of 106.6.

Peak AQI: 124 at Samalaju · 6 Oct 2026, 12:00 (UTC+8).

Daily US AQI (PM2.5)

Low 64High 124AQI

30 Sept6 Oct

6 OctDaily mean · Peak 124115.5Avg AQI

Based on 18 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	69.9Moderate	78	24 / 0
2026-10-01	65.4Moderate	67	24 / 0
2026-10-02	69.6Moderate	77	24 / 0
2026-10-03	86.2Moderate	96	24 / 0
2026-10-04	102.5Unhealthy for Sensitive Groups	107	24 / 0
2026-10-05	98.3Moderate	105	24 / 0
2026-10-06	115.5Unhealthy for Sensitive Groups	124	18 / 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	78	78	77	77	75	75	75	74	74	72	71	70	68	67	67	65	64	64	64	65	64	64	65	64
2026-10-01	64	65	65	67	65	65	65	65	64	65	65	65	67	67	65	65	65	67	65	65	67	67	65	65
2026-10-02	65	65	65	64	65	65	65	67	67	67	65	67	70	71	72	74	74	72	72	74	75	75	77	77
2026-10-03	78	78	78	78	80	81	81	83	84	86	87	87	87	86	86	86	88	90	91	93	94	94	96	96
2026-10-04	96	97	99	99	99	101	103	103	103	103	103	105	105	105	107	107	105	103	105	103	103	103	103	101
2026-10-05	101	101	101	101	101	99	97	97	97	97	96	94	96	96	96	96	97	97	97	99	99	99	101	105
2026-10-06	107	107	107	107	109	111	115	117	118	118	120	122	124	122	120	120	118	117	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 118

Unhealthy for Sensitive Groups: 44

Unhealthy: 0

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

Samalaju air quality.
Weekly station review.

30 Sep – 6 Oct 20267 days · Sarawak

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

During the week of 30 Sep – 6 Oct 2026, air quality at Samalaju averaged an Air Pollutant Index (API) of 70.6 (Moderate). Readings peaked at 93.

Station weekly average

70.6API

Moderate · Sederhana

Daily averages57.2 – 88.5 APIWed → Tue

Explore the week

Week's peak reading: 93ModeratePeak during 7-day window
Rank in Sarawak: #8of 13 stationsState avg: 72.9 API
Good to Moderate air: 100%of hourly readings162 readings recorded
National standing: #25of 68 stationsNational avg: 83 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 · 0–100 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	60.2	56	66
Thu, 1 Oct	57.2	56	58
Fri, 2 Oct	60	56	65
Sat, 3 Oct	71.4	66	78
Sun, 4 Oct	81.8	78	84
Mon, 5 Oct	79.5	77	83
Tue, 6 Oct	88.5	84	93

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 Samalaju shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100APIBrighter cells ran hazier than the rest of this week (56 – 93 API)

Haziest hour of the week: Tue at 12:00 MYT, averaging API 93 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	66	66	65	65	64	64	64	63	63	62	61	60	59	58	58	57	56	56	56	57	56	56	57	56
Thu	56	57	57	58	57	57	57	57	56	57	57	57	58	58	57	57	57	58	57	57	58	58	57	57
Fri	57	57	57	56	57	57	57	58	58	58	57	58	60	61	62	63	63	62	62	63	64	64	65	65
Sat	66	66	66	66	67	68	68	69	70	71	72	72	72	71	71	71	73	74	75	76	77	77	78	78
Sun	78	79	80	80	80	81	82	82	82	82	82	83	83	83	84	84	83	82	83	82	82	82	82	81
Mon	81	81	81	81	81	80	79	79	79	79	78	77	78	78	78	78	79	79	79	80	80	80	81	83
Tue	84	84	84	84	85	86	88	89	90	90	91	92	93	92	91	91	90	89	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana100%162
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 162 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 Samalaju

Perbandingan purata mingguan dengan stesen berhampiran

Bintulu73.8 API
Moderate51 away
Miri63.8 API
Moderate125 away
ILP Miri57.1 API
Moderate133 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	66	66	65	65	64	64	64	63	63	62	61	60	59	58	58	57	56	56	56	57	56	56	57	56
Thu	56	57	57	58	57	57	57	57	56	57	57	57	58	58	57	57	57	58	57	57	58	58	57	57
Fri	57	57	57	56	57	57	57	58	58	58	57	58	60	61	62	63	63	62	62	63	64	64	65	65
Sat	66	66	66	66	67	68	68	69	70	71	72	72	72	71	71	71	73	74	75	76	77	77	78	78
Sun	78	79	80	80	80	81	82	82	82	82	82	83	83	83	84	84	83	82	83	82	82	82	82	81
Mon	81	81	81	81	81	80	79	79	79	79	78	77	78	78	78	78	79	79	79	80	80	80	81	83
Tue	84	84	84	84	85	86	88	89	90	90	91	92	93	92	91	91	90	89	—	—	—	—	—	—

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	66	66	65	65	64	64	64	63	63	62	61	60	59	58	58	57	56	56	56	57	56	56	57	56
Thu	56	57	57	58	57	57	57	57	56	57	57	57	58	58	57	57	57	58	57	57	58	58	57	57
Fri	57	57	57	56	57	57	57	58	58	58	57	58	60	61	62	63	63	62	62	63	64	64	65	65
Sat	66	66	66	66	67	68	68	69	70	71	72	72	72	71	71	71	73	74	75	76	77	77	78	78
Sun	78	79	80	80	80	81	82	82	82	82	82	83	83	83	84	84	83	82	83	82	82	82	82	81
Mon	81	81	81	81	81	80	79	79	79	79	78	77	78	78	78	78	79	79	79	80	80	80	81	83
Tue	84	84	84	84	85	86	88	89	90	90	91	92	93	92	91	91	90	89	—	—	—	—	—	—