30 Sep – 6 Oct 2026 · Malaysia

Batu Pahat weekly air quality

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

132.1Weekly mean AQI · Unhealthy for Sensitive Groups

Official DOE API mean: 119.9. 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

161 eligible observations · 1 excluded.

+24.3 AQI compared with the previous week’s eligible mean of 107.8.

Peak AQI: 218 at Batu Pahat · 6 Oct 2026, 17:00 (UTC+8).

Daily US AQI (PM2.5)

Low 75High 218AQI

30 Sept6 Oct

6 OctDaily mean · Peak 218200.6Avg 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	143.9Unhealthy for Sensitive Groups	163	24 / 0
2026-10-01	88.9Moderate	109	24 / 0
2026-10-02	79.9Moderate	93	23 / 1
2026-10-03	112.9Unhealthy for Sensitive Groups	142	24 / 0
2026-10-04	155.2Unhealthy	158	24 / 0
2026-10-05	158.5Unhealthy	173	24 / 0
2026-10-06	200.6Very Unhealthy	218	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	163	160	159	158	156	156	155	155	154	154	152	152	151	151	147	143	138	134	128	124	120	117	115	111
2026-10-01	109	107	105	103	101	101	99	99	97	96	93	88	86	83	81	78	77	77	77	77	75	75	75	75
2026-10-02	75	75	75	77	77	77	77	77	77	77	78	78	78	78	78	80	80	81	83	—	87	88	91	93
2026-10-03	94	96	97	97	99	99	101	101	101	103	103	107	109	113	117	118	122	124	128	130	134	136	139	142
2026-10-04	145	149	152	152	154	155	155	156	158	158	158	158	158	158	158	156	156	156	156	156	156	155	155	155
2026-10-05	155	154	154	152	152	152	152	152	152	154	154	155	158	160	160	162	162	162	162	165	165	167	170	173
2026-10-06	175	178	181	185	189	192	194	198	203	206	210	212	212	214	214	214	216	218	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 47

Unhealthy for Sensitive Groups: 36

Unhealthy: 68

Very Unhealthy: 10

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

Batu Pahat air quality.
Weekly station review.

30 Sep – 6 Oct 20267 days · Johor

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Batu Pahat, Johor

During the week of 30 Sep – 6 Oct 2026, air quality at Batu Pahat averaged an Air Pollutant Index (API) of 119.9 (Unhealthy). Readings peaked at 196.

Station weekly average

119.9API

Unhealthy · Tidak Sihat

Daily averages67.3 – 185.9 APIWed → Tue

Explore the week

Week's peak reading: 196UnhealthyPeak during 7-day window
Rank in Johor: #6of 8 stationsState avg: 111.4 API
Good to Moderate air: 48%of hourly readings162 readings recorded
National standing: #63of 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 · 0–250 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	131.7	86	160
Thu, 1 Oct	73	64	85
Fri, 2 Oct	67.3	64	76
Sat, 3 Oct	88	77	117
Sun, 4 Oct	153.3	129	156
Mon, 5 Oct	156.5	152	167
Tue, 6 Oct	185.9	169	196

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 Batu Pahat shows local patterns like traffic peaks and afternoon haze accumulation.

050100150200250APIBrighter cells ran hazier than the rest of this week (64 – 196 API)

Haziest hour of the week: Tue at 17:00 MYT, averaging API 196 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	160	158	157	156	155	155	154	154	153	153	152	152	151	151	137	122	100	98	95	93	91	89	88	86
Thu	85	84	83	82	81	81	80	80	79	78	76	73	71	69	68	66	65	65	65	65	64	64	64	64
Fri	64	64	64	65	65	65	65	65	65	65	66	66	66	66	66	67	67	68	69	71	72	73	75	76
Sat	77	78	79	79	80	80	81	81	81	82	82	84	85	87	89	90	92	93	95	96	98	99	106	117
Sun	129	146	152	152	153	154	154	155	156	156	156	156	156	156	156	155	155	155	155	155	155	154	154	154
Mon	154	153	153	152	152	152	152	152	152	153	153	154	156	158	158	159	159	159	159	161	161	163	165	167
Tue	169	171	173	176	179	181	183	186	188	190	192	193	193	194	194	194	195	196	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana48%78
UnhealthyTidak Sihat52%84
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

Limit prolonged outdoor activity. Children, older adults, pregnant women and people with respiratory or heart conditions should stay indoors where possible. A well-fitted N95 mask helps outdoors.

Hadkan aktiviti luar yang berpanjangan. Kanak-kanak, warga emas, ibu mengandung dan pesakit pernafasan atau jantung dinasihatkan berada di dalam bangunan. Pelitup muka N95 membantu di luar.

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 Batu Pahat

Perbandingan purata mingguan dengan stesen berhampiran

Kluang104.4 API
Unhealthy51 away
Tangkak102.6 API
Unhealthy53 away
Segamat108 API
Unhealthy64 away
Bandaraya Melaka99.5 API
Moderate74 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	160	158	157	156	155	155	154	154	153	153	152	152	151	151	137	122	100	98	95	93	91	89	88	86
Thu	85	84	83	82	81	81	80	80	79	78	76	73	71	69	68	66	65	65	65	65	64	64	64	64
Fri	64	64	64	65	65	65	65	65	65	65	66	66	66	66	66	67	67	68	69	71	72	73	75	76
Sat	77	78	79	79	80	80	81	81	81	82	82	84	85	87	89	90	92	93	95	96	98	99	106	117
Sun	129	146	152	152	153	154	154	155	156	156	156	156	156	156	156	155	155	155	155	155	155	154	154	154
Mon	154	153	153	152	152	152	152	152	152	153	153	154	156	158	158	159	159	159	159	161	161	163	165	167
Tue	169	171	173	176	179	181	183	186	188	190	192	193	193	194	194	194	195	196	—	—	—	—	—	—

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	160	158	157	156	155	155	154	154	153	153	152	152	151	151	137	122	100	98	95	93	91	89	88	86
Thu	85	84	83	82	81	81	80	80	79	78	76	73	71	69	68	66	65	65	65	65	64	64	64	64
Fri	64	64	64	65	65	65	65	65	65	65	66	66	66	66	66	67	67	68	69	71	72	73	75	76
Sat	77	78	79	79	80	80	81	81	81	82	82	84	85	87	89	90	92	93	95	96	98	99	106	117
Sun	129	146	152	152	153	154	154	155	156	156	156	156	156	156	156	155	155	155	155	155	155	154	154	154
Mon	154	153	153	152	152	152	152	152	152	153	153	154	156	158	158	159	159	159	159	161	161	163	165	167
Tue	169	171	173	176	179	181	183	186	188	190	192	193	193	194	194	194	195	196	—	—	—	—	—	—