21 – 27 Oct 2026 · Malaysia

Kluang weekly air quality

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

135.3Weekly mean AQI · Unhealthy for Sensitive Groups

Official DOE API mean: 116.3. 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

145 eligible observations · 0 excluded.

-25.7 AQI compared with the previous week’s eligible mean of 161.

Peak AQI: 170 at Kluang · 24 Oct 2026, 16:00 (UTC+8).

Daily US AQI (PM2.5)

Low 87High 170AQI

21 Oct27 Oct

27 OctDaily mean · Peak 9393Avg AQI

Based on 1 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	145.5Unhealthy for Sensitive Groups	152	24 / 0
2026-10-22	136.8Unhealthy for Sensitive Groups	141	24 / 0
2026-10-23	133Unhealthy for Sensitive Groups	147	24 / 0
2026-10-24	162.4Unhealthy	170	24 / 0
2026-10-25	145Unhealthy for Sensitive Groups	166	24 / 0
2026-10-26	90.8Moderate	101	24 / 0
2026-10-27	93Moderate	93	1 / 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	152	152	152	152	152	152	152	151	151	151	151	151	150	148	142	136	132	134	138	139	138	138	139	140
2026-10-22	141	141	140	140	140	140	139	138	136	134	132	130	128	128	136	136	136	139	138	139	139	138	138	138
2026-10-23	138	138	138	136	136	134	132	132	132	134	134	132	130	128	124	124	122	122	128	130	136	140	144	147
2026-10-24	151	152	152	154	155	156	158	159	160	162	162	165	166	166	167	169	170	170	169	169	167	166	166	166
2026-10-25	166	166	165	165	163	162	160	159	158	156	155	154	152	151	145	138	132	128	126	124	120	117	111	107
2026-10-26	101	97	94	93	91	91	91	90	90	90	90	90	91	91	90	88	90	90	88	87	88	88	90	91
2026-10-27	93	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 24

Unhealthy for Sensitive Groups: 71

Unhealthy: 50

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

Kluang air quality.
Weekly station review.

21 – 27 Oct 20267 days · Johor

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

During the week of 21 – 27 Oct 2026, air quality at Kluang averaged an Air Pollutant Index (API) of 116.3 (Unhealthy). Readings peaked at 165.

Station weekly average

116.3API

Unhealthy · Tidak Sihat

Daily averages74.7 – 159.4 APIWed → Tue

Explore the week

Week's peak reading: 165UnhealthyPeak during 7-day window
Rank in Johor: #5of 8 stationsState avg: 112 API
Good to Moderate air: 48%of hourly readings145 readings recorded
National standing: #57of 68 stationsNational avg: 84.4 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, 21 Oct	131.1	97	152
Thu, 22 Oct	102.5	95	113
Fri, 23 Oct	100.1	92	138
Sat, 24 Oct	159.4	151	165
Sun, 25 Oct	131.8	84	162
Mon, 26 Oct	74.7	72	81
Tue, 27 Oct	76	76	76

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

0255075100125150175APIBrighter cells ran hazier than the rest of this week (72 – 165 API)

Haziest hour of the week: Sat at 16:00 MYT, averaging API 165 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	152	152	152	152	152	151	151	151	151	151	150	143	116	99	97	98	100	104	100	103	107	111
Thu	112	113	108	108	108	109	105	100	99	98	97	96	95	95	99	99	99	104	103	107	104	102	100	101
Fri	100	100	100	99	99	98	97	97	97	98	98	97	96	95	93	93	92	92	95	96	99	108	125	138
Sat	151	152	152	153	154	155	156	157	158	159	159	161	162	162	163	164	165	165	164	164	163	162	162	162
Sun	162	162	161	161	160	159	158	157	156	155	154	153	152	151	130	102	97	95	94	93	91	89	86	84
Mon	81	79	77	76	75	75	75	74	74	74	74	74	75	75	74	73	74	74	73	72	73	73	74	75
Tue	76	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana48%70
UnhealthyTidak Sihat52%75
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 145 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 Kluang

Perbandingan purata mingguan dengan stesen berhampiran

Batu Pahat126.2 API
Unhealthy51 away
Segamat101.9 API
Unhealthy71 away
Larkin115.6 API
Unhealthy77 away
Tangkak124.7 API
Unhealthy87 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	152	152	152	152	152	151	151	151	151	151	150	143	116	99	97	98	100	104	100	103	107	111
Thu	112	113	108	108	108	109	105	100	99	98	97	96	95	95	99	99	99	104	103	107	104	102	100	101
Fri	100	100	100	99	99	98	97	97	97	98	98	97	96	95	93	93	92	92	95	96	99	108	125	138
Sat	151	152	152	153	154	155	156	157	158	159	159	161	162	162	163	164	165	165	164	164	163	162	162	162
Sun	162	162	161	161	160	159	158	157	156	155	154	153	152	151	130	102	97	95	94	93	91	89	86	84
Mon	81	79	77	76	75	75	75	74	74	74	74	74	75	75	74	73	74	74	73	72	73	73	74	75
Tue	76	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

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	152	152	152	152	152	151	151	151	151	151	150	143	116	99	97	98	100	104	100	103	107	111
Thu	112	113	108	108	108	109	105	100	99	98	97	96	95	95	99	99	99	104	103	107	104	102	100	101
Fri	100	100	100	99	99	98	97	97	97	98	98	97	96	95	93	93	92	92	95	96	99	108	125	138
Sat	151	152	152	153	154	155	156	157	158	159	159	161	162	162	163	164	165	165	164	164	163	162	162	162
Sun	162	162	161	161	160	159	158	157	156	155	154	153	152	151	130	102	97	95	94	93	91	89	86	84
Mon	81	79	77	76	75	75	75	74	74	74	74	74	75	75	74	73	74	74	73	72	73	73	74	75
Tue	76	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—