30 Sep – 6 Oct 2026 · Malaysia

Balik Pulau weekly air quality

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

69.2Weekly mean AQI · Moderate

Official DOE API mean: 58.7. 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

161 eligible observations · 0 excluded.

+1.7 AQI compared with the previous week’s eligible mean of 67.5.

Peak AQI: 152 at Balik Pulau · 30 Sept 2026, 00:00 (UTC+8).

Daily US AQI (PM2.5)

Low 28High 152AQI

30 Sept6 Oct

6 OctDaily mean · Peak 4134.2Avg AQI

Based on 17 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	109.9Unhealthy for Sensitive Groups	152	24 / 0
2026-10-01	60.6Moderate	72	24 / 0
2026-10-02	80.9Moderate	87	24 / 0
2026-10-03	69.2Moderate	74	24 / 0
2026-10-04	63.1Moderate	65	24 / 0
2026-10-05	56Moderate	64	24 / 0
2026-10-06	34.2Good	41	17 / 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	152	152	151	148	143	139	136	132	128	122	120	115	109	101	94	90	87	84	80	77	72	70	68	68
2026-10-01	67	65	64	62	61	59	58	58	56	55	54	53	53	53	55	56	58	61	64	65	67	68	70	72
2026-10-02	74	75	77	78	81	84	86	86	86	86	84	84	86	87	86	84	81	81	78	77	77	75	75	74
2026-10-03	74	72	72	71	70	68	67	67	68	70	71	71	70	70	70	70	70	68	68	67	67	67	67	65
2026-10-04	65	65	65	64	64	64	64	64	62	61	59	59	61	62	62	62	64	64	64	64	64	64	64	64
2026-10-05	64	62	62	62	62	61	61	61	59	59	59	58	57	56	56	55	54	52	51	51	48	45	45	44
2026-10-06	41	40	40	37	36	36	34	32	31	31	31	29	28	28	32	36	40	—	—	—	—	—	—	—

Observation categories

Good: 21

Moderate: 126

Unhealthy for Sensitive Groups: 11

Unhealthy: 3

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

Balik Pulau air quality.
Weekly station review.

30 Sep – 6 Oct 20267 days · Penang

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

During the week of 30 Sep – 6 Oct 2026, air quality at Balik Pulau averaged an Air Pollutant Index (API) of 58.7 (Moderate). Readings peaked at 152.

Station weekly average

58.7API

Moderate · Sederhana

Daily averages25.7 – 92.4 APIWed → Tue

Explore the week

Week's peak reading: 152UnhealthyPeak during 7-day window
Rank in Penang: #1of 4 stationsState avg: 67.4 API
Good to Moderate air: 96%of hourly readings161 readings recorded
National standing: #9of 68 stationsNational avg: 82.9 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	92.4	59	152
Thu, 1 Oct	52.5	42	62
Fri, 2 Oct	67.8	63	72
Sat, 3 Oct	59.6	57	63
Sun, 4 Oct	55.5	53	57
Mon, 5 Oct	47.7	33	56
Tue, 6 Oct	25.7	21	31

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 Balik Pulau shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100125150175APIBrighter cells ran hazier than the rest of this week (21 – 152 API)

Haziest hour of the week: Wed at 00:00 MYT, averaging API 152 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	152	152	151	141	123	106	99	97	95	92	91	88	85	81	77	74	72	70	67	65	62	60	59	59
Thu	58	57	56	55	54	53	52	52	50	47	44	42	43	43	46	49	52	54	56	57	58	59	60	62
Fri	63	64	65	66	68	70	71	71	71	71	70	70	71	72	71	70	68	68	66	65	65	64	64	63
Sat	63	62	62	61	60	59	58	58	59	60	61	61	60	60	60	60	60	59	59	58	58	58	58	57
Sun	57	57	57	56	56	56	56	56	55	54	53	53	54	55	55	55	56	56	56	56	56	56	56	56
Mon	56	55	55	55	55	54	54	54	53	53	53	52	51	49	50	47	44	41	39	38	36	34	34	33
Tue	31	30	30	28	27	27	26	24	23	23	23	22	21	21	24	27	30	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik22%36
ModerateSederhana74%119
UnhealthyTidak Sihat4%6
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 161 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 Balik Pulau

Perbandingan purata mingguan dengan stesen berhampiran

Minden70.3 API
Moderate10 away
Seberang Jaya69.4 API
Moderate22 away
Seberang Perai71.2 API
Moderate25 away
Kulim Hi-Tech59.6 API
Moderate42 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	152	152	151	141	123	106	99	97	95	92	91	88	85	81	77	74	72	70	67	65	62	60	59	59
Thu	58	57	56	55	54	53	52	52	50	47	44	42	43	43	46	49	52	54	56	57	58	59	60	62
Fri	63	64	65	66	68	70	71	71	71	71	70	70	71	72	71	70	68	68	66	65	65	64	64	63
Sat	63	62	62	61	60	59	58	58	59	60	61	61	60	60	60	60	60	59	59	58	58	58	58	57
Sun	57	57	57	56	56	56	56	56	55	54	53	53	54	55	55	55	56	56	56	56	56	56	56	56
Mon	56	55	55	55	55	54	54	54	53	53	53	52	51	49	50	47	44	41	39	38	36	34	34	33
Tue	31	30	30	28	27	27	26	24	23	23	23	22	21	21	24	27	30	—	—	—	—	—	—	—

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	152	152	151	141	123	106	99	97	95	92	91	88	85	81	77	74	72	70	67	65	62	60	59	59
Thu	58	57	56	55	54	53	52	52	50	47	44	42	43	43	46	49	52	54	56	57	58	59	60	62
Fri	63	64	65	66	68	70	71	71	71	71	70	70	71	72	71	70	68	68	66	65	65	64	64	63
Sat	63	62	62	61	60	59	58	58	59	60	61	61	60	60	60	60	60	59	59	58	58	58	58	57
Sun	57	57	57	56	56	56	56	56	55	54	53	53	54	55	55	55	56	56	56	56	56	56	56	56
Mon	56	55	55	55	55	54	54	54	53	53	53	52	51	49	50	47	44	41	39	38	36	34	34	33
Tue	31	30	30	28	27	27	26	24	23	23	23	22	21	21	24	27	30	—	—	—	—	—	—	—