21 – 27 Oct 2026 · Malaysia

Perak weekly air quality

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

83.8Weekly mean AQI · Moderate

Official DOE API mean: 68.2. 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

740 eligible observations · 0 excluded.

-40.2 AQI compared with the previous week’s eligible mean of 124.

Peak AQI: 130 at Seri Manjung · 24 Oct 2026, 07:00 (UTC+8).

Daily US AQI (PM2.5)

Low 28High 130AQI

21 Oct27 Oct

27 OctDaily mean · Peak 7052.9Avg AQI

Based on 20 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
2026-10-21	98.9Moderate	128	120 / 0
2026-10-22	100.2Unhealthy for Sensitive Groups	128	120 / 0
2026-10-23	95.6Moderate	117	120 / 0
2026-10-24	92.2Moderate	130	120 / 0
2026-10-25	69.6Moderate	96	120 / 0
2026-10-26	51.7Moderate	71	120 / 0
2026-10-27	52.9Moderate	70	20 / 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
2026-10-21	115.4	113.2	111.4	109.6	107.2	105.2	103.8	100.8	99.4	97.8	96	92.4	92.4	91	91.8	92.8	93.2	93.8	93.2	93.4	93.8	94.2	95	95.8
2026-10-22	96.8	97.2	98	99.2	99.4	100.4	100.6	102.2	102	102.4	102.8	103.2	103.6	103	101.8	101	100.4	99.6	99.6	99.4	98.8	97.8	97.4	97.2
2026-10-23	97.2	97.6	97.2	96	96	95.6	94.8	94.8	94.6	95	94.6	94.6	95.4	97	98.2	97	96	94.6	94	93.8	94.8	94.6	94.6	95.8
2026-10-24	95.4	95.8	96	97.4	96.6	96.8	98.4	98.4	98.8	98.2	97	96.2	94.2	91.6	89.4	88.4	88.4	86.8	86	86.4	85.4	85.2	83.8	83.2
2026-10-25	83.2	81.6	80.8	79.8	78.8	77.4	76	74.6	73	72.4	71.2	70.6	69.4	68.2	67.6	65.8	63.4	63	61.6	59.8	58.6	57.6	58.2	57.4
2026-10-26	55.6	54.6	54	52	51.6	51.2	50.8	50.6	50.4	50.4	50.2	50.4	50	49.8	50.4	50.6	51.4	51.8	52	52.4	53	52.8	53	52.8
2026-10-27	53	52.6	52.2	53.8	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 67

Moderate: 486

Unhealthy for Sensitive Groups: 187

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

Stations by US AQI

Sorted by eligible mean AQI. Counts show the available coverage.

Location	Mean AQI	Peak AQI	Official DOE API mean	Eligible / excluded
Seri Manjung	99.1Moderate	130	78.4	148 / 0
Tasek Ipoh	91.9Moderate	128	74.7	148 / 0
Tanjung Malim	82Moderate	113	66.2	148 / 0
Pegoh Ipoh	80.8Moderate	122	67.5	148 / 0
Taiping	65.3Moderate	94	54.3	148 / 0

Perak air quality.
Weekly state review.

21 – 27 Oct 20267 days · 5 monitoring stations

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi negeri Perak

Across Perak, air quality for the week of 21 – 27 Oct 2026 averaged an Air Pollutant Index (API) of 68.2 (Moderate).

State weekly average

68.2API

Moderate · Sederhana

Daily averages43.6 – 79.8 APIWed → Tue

Explore the week

State's peak reading: 96Seri ManjungPeak reading across state
Cleanest area in state: 54.3TaipingLowest weekly average
Good to Moderate air: 100%of all readings740 readings
National standing: #7of 16 states/territoriesNational avg: 83.8 API

Seven days of air quality in Perak

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 · 0–125 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, 21 Oct	79	66	95
Thu, 22 Oct	79.8	63	95
Fri, 23 Oct	77.1	63	89
Sat, 24 Oct	75	53	96
Sun, 25 Oct	58.7	25	78
Mon, 26 Oct	43.6	21	61
Tue, 27 Oct	44.6	22	60

Monitoring stations in Perak

Kedudukan stesen pemantauan di seluruh negeri mengikut purata mingguan

Scale 0 – 100

Taiping54.3avg
Perak
21Moderate77
Tasek Ipoh74.7avg
Perak
55Moderate95
Pegoh Ipoh67.5avg
Perak
46Moderate92
Seri Manjung78.4avg
Perak
55Moderate96
Tanjung Malim66.2avg
Perak
23Moderate87

The week, hour by hour

Purata negeri bagi setiap jam sepanjang tujuh hari

Read each row from midnight to 11pm, in Malaysia Time. Hourly state averages show when air quality shifted during each day of the week.

0255075100APIBrighter cells ran hazier than the rest of this week (42 – 88.4 API)

Haziest hour of the week: Wed at 00:00 MYT, averaging API 88.4 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	88.4	87.2	86.2	85.2	83.8	82.8	82	80.4	79.6	78.8	77.8	75.6	75.4	74.6	74.8	75.2	75.6	76	75.4	75.6	75.8	76.2	76.8	77.2
Thu	77.8	78.2	78.6	79.4	79.6	80.2	80.2	81	81	81.2	81.4	81.6	81.8	81.4	80.8	80.2	79.8	79.4	79.4	79.4	79	78.4	78.2	78
Fri	78	78.2	78	77.4	77.4	77.2	76.8	76.8	76.6	76.8	76.6	76.6	77	78	78.6	78	77.4	76.6	76.2	76	76.8	76.6	76.6	77.2
Sat	77	77.4	77.6	78.2	77.8	78	78.8	78.8	79	78.6	78	77.4	76.2	74.6	73	72.4	72.4	71.4	71	71.2	70.6	70.6	69.8	69.4
Sun	69.4	68.4	67.8	67	66.4	65.4	64.2	63.2	61.8	61	59.8	59	58.2	57.2	56.8	55.6	54	53.6	52.6	51.4	49.6	48.6	49	47.8
Mon	46.4	45.8	45.4	44.2	43.8	43.4	43	42.6	42	42	42.4	42.4	42.2	42	42.6	42.8	43.6	43.6	43.8	44.2	44.6	44.4	44.6	44.2
Tue	44.6	44.4	44.2	45.2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik12%88
ModerateSederhana88%652
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 740 hourly station readings.

Health guidelines

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