21 – 27 Oct 2026 · Malaysia

Seberang Perai weekly air quality

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

81.1Weekly mean AQI · Moderate

Official DOE API mean: 67.9. 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

148 eligible observations · 0 excluded.

-20.7 AQI compared with the previous week’s eligible mean of 101.8.

Peak AQI: 99 at Seberang Perai · 23 Oct 2026, 13:00 (UTC+8).

Daily US AQI (PM2.5)

Low 59High 99AQI

21 Oct27 Oct

27 OctDaily mean · Peak 7169.5Avg AQI

Based on 4 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	83.5Moderate	97	24 / 0
2026-10-22	91.1Moderate	97	24 / 0
2026-10-23	90.7Moderate	99	24 / 0
2026-10-24	89.3Moderate	96	24 / 0
2026-10-25	68.3Moderate	80	24 / 0
2026-10-26	65.6Moderate	68	24 / 0
2026-10-27	69.5Moderate	71	4 / 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	93	91	88	86	84	83	81	80	80	78	78	77	75	75	75	77	78	81	83	86	90	93	96	97
2026-10-22	97	97	96	96	96	96	96	94	94	94	93	94	94	96	93	91	91	88	88	84	83	80	78	78
2026-10-23	84	84	86	86	87	87	87	87	87	88	91	90	88	99	97	96	96	96	94	94	94	93	93	93
2026-10-24	90	90	90	91	91	93	93	94	94	94	93	96	94	84	86	87	86	86	87	86	86	86	84	83
2026-10-25	80	78	78	77	74	74	72	71	72	72	70	67	65	67	67	65	65	62	62	61	59	61	59	62
2026-10-26	64	64	64	65	67	67	67	67	64	65	65	65	67	67	67	65	67	65	65	65	65	65	68	65
2026-10-27	67	70	70	71	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 148

Unhealthy for Sensitive Groups: 0

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

Seberang Perai air quality.
Weekly station review.

21 – 27 Oct 20267 days · Penang

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Seberang Perai, Penang

During the week of 21 – 27 Oct 2026, air quality at Seberang Perai averaged an Air Pollutant Index (API) of 67.9 (Moderate). Readings peaked at 80.

Station weekly average

67.9API

Moderate · Sederhana

Daily averages57.3 – 74.9 APIWed → Tue

Explore the week

Week's peak reading: 80ModeratePeak during 7-day window
Rank in Penang: #4of 4 stationsState avg: 54.7 API
Good to Moderate air: 100%of hourly readings148 readings recorded
National standing: #25of 68 stationsNational avg: 83.8 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, 21 Oct	69.6	64	79
Thu, 22 Oct	74.9	66	79
Fri, 23 Oct	74.5	70	80
Sat, 24 Oct	73.5	69	78
Sun, 25 Oct	59.2	53	67
Mon, 26 Oct	57.3	56	59
Tue, 27 Oct	59.8	58	61

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 Seberang Perai shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100APIBrighter cells ran hazier than the rest of this week (53 – 80 API)

Haziest hour of the week: Fri at 13:00 MYT, averaging API 80 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	76	75	73	71	70	69	68	67	67	66	66	65	64	64	64	65	66	68	69	71	74	76	78	79
Thu	79	79	78	78	78	78	78	77	77	77	76	77	77	78	76	75	75	73	73	70	69	67	66	66
Fri	70	70	71	71	72	72	72	72	72	73	75	74	73	80	79	78	78	78	77	77	77	76	76	76
Sat	74	74	74	75	75	76	76	77	77	77	76	78	77	70	71	72	71	71	72	71	71	71	70	69
Sun	67	66	66	65	63	63	62	61	62	62	60	58	57	58	58	57	57	55	55	54	53	54	53	55
Mon	56	56	56	57	58	58	58	58	56	57	57	57	58	58	58	57	58	57	57	57	57	57	59	57
Tue	58	60	60	61	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana100%148
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 148 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 Seberang Perai

Perbandingan purata mingguan dengan stesen berhampiran

Seberang Jaya54.5 API
Moderate8.8 away
Minden51 API
Moderate15 away
Kulim Hi-Tech48.2 API
Good18 away
Balik Pulau45.3 API
Good25 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	76	75	73	71	70	69	68	67	67	66	66	65	64	64	64	65	66	68	69	71	74	76	78	79
Thu	79	79	78	78	78	78	78	77	77	77	76	77	77	78	76	75	75	73	73	70	69	67	66	66
Fri	70	70	71	71	72	72	72	72	72	73	75	74	73	80	79	78	78	78	77	77	77	76	76	76
Sat	74	74	74	75	75	76	76	77	77	77	76	78	77	70	71	72	71	71	72	71	71	71	70	69
Sun	67	66	66	65	63	63	62	61	62	62	60	58	57	58	58	57	57	55	55	54	53	54	53	55
Mon	56	56	56	57	58	58	58	58	56	57	57	57	58	58	58	57	58	57	57	57	57	57	59	57
Tue	58	60	60	61	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

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	76	75	73	71	70	69	68	67	67	66	66	65	64	64	64	65	66	68	69	71	74	76	78	79
Thu	79	79	78	78	78	78	78	77	77	77	76	77	77	78	76	75	75	73	73	70	69	67	66	66
Fri	70	70	71	71	72	72	72	72	72	73	75	74	73	80	79	78	78	78	77	77	77	76	76	76
Sat	74	74	74	75	75	76	76	77	77	77	76	78	77	70	71	72	71	71	72	71	71	71	70	69
Sun	67	66	66	65	63	63	62	61	62	62	60	58	57	58	58	57	57	55	55	54	53	54	53	55
Mon	56	56	56	57	58	58	58	58	56	57	57	57	58	58	58	57	58	57	57	57	57	57	59	57
Tue	58	60	60	61	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—