30 Sep – 6 Oct 2026 · Malaysia

Perak weekly air quality

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

91.2Weekly mean AQI · Moderate

Official DOE API mean: 75.5. 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

830 eligible observations · 0 excluded.

+18.1 AQI compared with the previous week’s eligible mean of 73.1.

Peak AQI: 163 at Seri Manjung · 30 Sept 2026, 00:00 (UTC+8).

Daily US AQI (PM2.5)

Low 54High 163AQI

30 Sept6 Oct

6 OctDaily mean · Peak 15597.5Avg AQI

Based on 110 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	105.5Unhealthy for Sensitive Groups	163	120 / 0
2026-10-01	78.8Moderate	109	120 / 0
2026-10-02	102.3Unhealthy for Sensitive Groups	142	120 / 0
2026-10-03	72.4Moderate	97	120 / 0
2026-10-04	85.6Moderate	118	120 / 0
2026-10-05	96.9Moderate	124	120 / 0
2026-10-06	97.5Moderate	155	110 / 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	118	117.4	117	117.2	116.8	116.2	115.6	115	114.6	113.4	113.2	112.2	111.4	109.8	107.2	102.4	97.6	95	91.4	89.2	87.6	86.2	84.4	83
2026-10-01	82	81.8	80	78.6	78	77.6	77	75.6	75.4	74.4	73.6	72.8	73	73.6	74.2	75.4	76.8	78.6	80.4	82.2	85	86.4	89	90.2
2026-10-02	92.8	94.2	97.2	98.4	99.8	102.4	105.4	107.8	108.2	109	109.8	110.4	109.4	109.4	109.4	108.2	106.4	105	102.2	99.2	96.6	93.8	91	88.6
2026-10-03	86.4	84.2	81.8	80.2	78.2	75.8	73.8	71.6	70.2	69.4	68.6	68	68	67.4	66.6	67.2	67.6	69	69.6	70	69.8	70.4	71.2	73.2
2026-10-04	73.8	74.2	75.2	76.4	77	78.6	79.8	80.2	81.8	82.8	83.8	85	85.6	87.4	87.8	88.4	90	91.4	93.6	96	96.4	96.4	96.8	96.4
2026-10-05	96.6	97	96.4	96.8	96.8	97.2	97.4	98	99	99.6	100.6	101	100.2	100.2	99.8	98.8	98.2	96.4	94.2	93	92.2	92	92.4	92.6
2026-10-06	92.4	92	91.8	92	92.2	92	91.8	90.8	90.6	90	89.8	89.4	91.6	92.4	95.2	100	104.2	109	112.2	114	115.4	116	—	—

Observation categories

Good: 0

Moderate: 607

Unhealthy for Sensitive Groups: 205

Unhealthy: 18

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	98.3Moderate	163	81.9	166 / 0
Tasek Ipoh	95.4Moderate	134	76.5	166 / 0
Tanjung Malim	94.6Moderate	155	80.1	166 / 0
Pegoh Ipoh	89.9Moderate	124	73.5	166 / 0
Taiping	77.9Moderate	111	65.4	166 / 0

Perak air quality.
Weekly state review.

30 Sep – 6 Oct 20267 days · 5 monitoring stations

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi negeri Perak

Across Perak, air quality for the week of 30 Sep – 6 Oct 2026 averaged an Air Pollutant Index (API) of 75.5 (Moderate).

State weekly average

75.5API

Moderate · Sederhana

Daily averages61.8 – 91.2 APIWed → Tue

Explore the week

State's peak reading: 160Seri ManjungPeak reading across state
Cleanest area in state: 65.4TaipingLowest weekly average
Good to Moderate air: 95%of all readings830 readings
National standing: #8of 16 states/territoriesNational avg: 83.7 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 · 0–175 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	91.2	60	160
Thu, 1 Oct	66.3	58	85
Fri, 2 Oct	81.2	63	117
Sat, 3 Oct	61.8	44	79
Sun, 4 Oct	70.7	55	90
Mon, 5 Oct	78	66	93
Tue, 6 Oct	79.6	57	154

Monitoring stations in Perak

Kedudukan stesen pemantauan di seluruh negeri mengikut purata mingguan

Scale 0 – 175

Taiping65.4avg
Perak
44Moderate86
Tasek Ipoh76.5avg
Perak
60Moderate98
Pegoh Ipoh73.5avg
Perak
59Moderate93
Seri Manjung81.9avg
Perak
60Moderate160
Tanjung Malim80.1avg
Perak
59Moderate154

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.

0255075100125APIBrighter cells ran hazier than the rest of this week (57.8 – 105.4 API)

Haziest hour of the week: Wed at 05:00 MYT, averaging API 105.4 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	101	101.8	101.8	103.8	105	105.4	105.2	104.6	104.8	104.2	104	102.2	99.8	95.4	88	81.2	77.2	75.6	73.6	72.6	71.6	70.6	69.6	68.8
Thu	68.2	68.2	67.2	66.2	65.8	65.6	65.2	64.2	64	63.4	62.8	62.2	62.4	62.6	63	64	65.2	66.2	67.4	68.6	70.6	71.4	73	73.8
Fri	75.4	76.2	78	78.8	79.6	81	82.6	83.8	84.2	85.8	87	88.2	87.4	85.4	84.8	84.2	83.2	82.4	80.8	79	77.6	76	74.4	73
Sat	71.6	70.2	68.4	67.4	66	64.2	62.8	61	60.2	59	58.4	58.6	58.8	58.2	57.8	58.2	58.2	58.8	59.6	60.2	60.2	60.6	61.2	62.6
Sun	63	63.2	64	64.8	65.2	66.2	67	67.4	68.2	69	69.6	70.4	70.8	71.8	72.2	72.6	73.6	74.6	75.8	77.2	77.6	77.6	77.8	77.6
Mon	77.8	78	77.6	78	78	78.2	78.4	78.8	79.4	79.6	80.2	80.4	80	80	79.8	79.2	78.8	77.6	76.4	75.6	75.2	75	75.2	75.4
Tue	75.2	74.8	75	75	75.2	75.2	75	74.4	74.2	74	73.8	73.6	74.8	75.2	76.6	79.2	81.4	86.6	93.4	95.6	96.4	96.8	—	—

How readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik1%11
ModerateSederhana94%778
UnhealthyTidak Sihat5%41
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 830 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