30 Sep – 6 Oct 2026 · Malaysia

Minden weekly air quality

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

83.5Weekly mean AQI · Moderate

Official DOE API mean: 70.2. 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

162 eligible observations · 0 excluded.

+9.1 AQI compared with the previous week’s eligible mean of 74.4.

Peak AQI: 155 at Minden · 30 Sept 2026, 00:00 (UTC+8).

Daily US AQI (PM2.5)

Low 51High 155AQI

30 Sept6 Oct

6 OctDaily mean · Peak 6857.6Avg 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	116.5Unhealthy for Sensitive Groups	155	24 / 0
2026-10-01	68.8Moderate	81	24 / 0
2026-10-02	100.3Unhealthy for Sensitive Groups	113	24 / 0
2026-10-03	69.7Moderate	86	24 / 0
2026-10-04	77.3Moderate	91	24 / 0
2026-10-05	87.7Moderate	97	24 / 0
2026-10-06	57.6Moderate	68	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	155	155	154	152	151	146	142	136	132	128	126	122	118	111	105	99	94	90	86	83	78	78	78	77
2026-10-01	75	74	71	70	68	68	67	65	64	62	61	58	59	61	61	64	67	71	74	75	78	78	80	81
2026-10-02	84	87	90	94	97	101	105	109	109	109	109	111	111	113	113	109	103	99	96	94	93	91	91	90
2026-10-03	86	83	80	77	75	72	70	68	68	70	70	68	68	67	67	65	67	65	65	64	64	64	65	65
2026-10-04	67	68	68	70	71	71	72	72	72	71	71	72	74	75	77	78	83	86	87	88	91	90	91	91
2026-10-05	91	91	91	91	91	91	93	93	94	96	97	97	96	93	90	88	86	83	80	78	77	75	72	71
2026-10-06	68	67	65	62	61	59	56	55	54	53	52	52	51	51	53	58	59	61	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 135

Unhealthy for Sensitive Groups: 22

Unhealthy: 5

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

Minden air quality.
Weekly station review.

30 Sep – 6 Oct 20267 days · Penang

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

During the week of 30 Sep – 6 Oct 2026, air quality at Minden averaged an Air Pollutant Index (API) of 70.2 (Moderate). Readings peaked at 154.

Station weekly average

70.2API

Moderate · Sederhana

Daily averages48.8 – 99.4 APIWed → Tue

Explore the week

Week's peak reading: 154UnhealthyPeak during 7-day window
Rank in Penang: #3of 4 stationsState avg: 67.3 API
Good to Moderate air: 96%of hourly readings162 readings recorded
National standing: #24of 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 · 0–175 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	99.4	65	154
Thu, 1 Oct	59.5	52	68
Fri, 2 Oct	80.2	70	87
Sat, 3 Oct	60	56	71
Sun, 4 Oct	65.4	58	75
Mon, 5 Oct	72.5	61	79
Tue, 6 Oct	48.8	38	59

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

0255075100125150175APIBrighter cells ran hazier than the rest of this week (38 – 154 API)

Haziest hour of the week: Wed at 00:00 MYT, averaging API 154 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	154	154	153	152	151	135	116	99	97	95	94	92	90	86	83	80	77	74	71	69	66	66	66	65
Thu	64	63	61	60	59	59	58	57	56	55	54	52	53	54	54	56	58	61	63	64	66	66	67	68
Fri	70	72	74	77	79	81	83	85	85	85	85	86	86	87	87	85	82	80	78	77	76	75	75	74
Sat	71	69	67	65	64	62	60	59	59	60	60	59	59	58	58	57	58	57	57	56	56	56	57	57
Sun	58	59	59	60	61	61	62	62	62	61	61	62	63	64	65	66	69	71	72	73	75	74	75	75
Mon	75	75	75	75	75	75	76	76	77	78	79	79	78	76	74	73	71	69	67	66	65	64	62	61
Tue	59	58	57	55	54	53	50	46	45	43	41	41	38	38	42	52	53	54	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik6%9
ModerateSederhana90%146
UnhealthyTidak Sihat4%7
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 Minden

Perbandingan purata mingguan dengan stesen berhampiran

Balik Pulau58.5 API
Moderate10 away
Seberang Jaya69.3 API
Moderate12 away
Seberang Perai71.2 API
Moderate15 away
Kulim Hi-Tech59.6 API
Moderate32 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	154	154	153	152	151	135	116	99	97	95	94	92	90	86	83	80	77	74	71	69	66	66	66	65
Thu	64	63	61	60	59	59	58	57	56	55	54	52	53	54	54	56	58	61	63	64	66	66	67	68
Fri	70	72	74	77	79	81	83	85	85	85	85	86	86	87	87	85	82	80	78	77	76	75	75	74
Sat	71	69	67	65	64	62	60	59	59	60	60	59	59	58	58	57	58	57	57	56	56	56	57	57
Sun	58	59	59	60	61	61	62	62	62	61	61	62	63	64	65	66	69	71	72	73	75	74	75	75
Mon	75	75	75	75	75	75	76	76	77	78	79	79	78	76	74	73	71	69	67	66	65	64	62	61
Tue	59	58	57	55	54	53	50	46	45	43	41	41	38	38	42	52	53	54	—	—	—	—	—	—

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	154	154	153	152	151	135	116	99	97	95	94	92	90	86	83	80	77	74	71	69	66	66	66	65
Thu	64	63	61	60	59	59	58	57	56	55	54	52	53	54	54	56	58	61	63	64	66	66	67	68
Fri	70	72	74	77	79	81	83	85	85	85	85	86	86	87	87	85	82	80	78	77	76	75	75	74
Sat	71	69	67	65	64	62	60	59	59	60	60	59	59	58	58	57	58	57	57	56	56	56	57	57
Sun	58	59	59	60	61	61	62	62	62	61	61	62	63	64	65	66	69	71	72	73	75	74	75	75
Mon	75	75	75	75	75	75	76	76	77	78	79	79	78	76	74	73	71	69	67	66	65	64	62	61
Tue	59	58	57	55	54	53	50	46	45	43	41	41	38	38	42	52	53	54	—	—	—	—	—	—