30 Sep – 6 Oct 2026 · Malaysia

Segamat weekly air quality

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

119.9Weekly mean AQI · Unhealthy for Sensitive Groups

Official DOE API mean: 104.7. 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

154 eligible observations · 0 excluded.

+29.7 AQI compared with the previous week’s eligible mean of 90.2.

Peak AQI: 173 at Segamat · 6 Oct 2026, 09:00 (UTC+8).

Daily US AQI (PM2.5)

Low 80High 173AQI

30 Sept6 Oct

6 OctDaily mean · Peak 173167.4Avg AQI

Based on 10 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	130.5Unhealthy for Sensitive Groups	158	24 / 0
2026-10-01	97.1Moderate	107	24 / 0
2026-10-02	86Moderate	90	24 / 0
2026-10-03	90.3Moderate	120	24 / 0
2026-10-04	151.3Unhealthy	158	24 / 0
2026-10-05	144.7Unhealthy for Sensitive Groups	159	24 / 0
2026-10-06	167.4Unhealthy	173	10 / 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	158	156	154	152	151	149	145	141	136	132	130	128	126	122	120	118	118	118	118	117	115	111	109	109
2026-10-01	107	107	107	105	107	105	105	103	103	101	99	97	96	94	93	91	88	87	88	88	88	90	91	90
2026-10-02	90	88	88	90	87	88	88	88	88	88	88	87	86	84	84	83	84	84	83	84	84	84	84	83
2026-10-03	83	83	81	81	80	80	80	80	81	81	81	83	83	86	87	90	93	96	99	103	107	111	117	120
2026-10-04	126	132	136	141	146	151	152	154	154	155	156	156	158	158	158	158	158	156	156	155	155	154	154	152
2026-10-05	152	151	149	146	144	142	141	140	139	136	134	132	132	132	136	141	145	151	152	152	154	155	158	159
2026-10-06	160	163	165	166	167	169	170	170	171	173	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 57

Unhealthy for Sensitive Groups: 54

Unhealthy: 43

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

Segamat air quality.
Weekly station review.

30 Sep – 6 Oct 20267 days · Johor

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

During the week of 30 Sep – 6 Oct 2026, air quality at Segamat averaged an Air Pollutant Index (API) of 104.7 (Unhealthy). Readings peaked at 167.

Station weekly average

104.7API

Unhealthy · Tidak Sihat

Daily averages71.4 – 163.1 APIWed → Tue

Explore the week

Week's peak reading: 167UnhealthyPeak during 7-day window
Rank in Johor: #5of 8 stationsState avg: 108.4 API
Good to Moderate air: 63%of hourly readings154 readings recorded
National standing: #59of 68 stationsNational avg: 82 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 · 0–200 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	109	85	156
Thu, 1 Oct	78.4	72	84
Fri, 2 Oct	71.4	69	74
Sat, 3 Oct	73.6	67	91
Sun, 4 Oct	144.3	94	156
Mon, 5 Oct	127.4	97	157
Tue, 6 Oct	163.1	158	167

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

050100150200APIBrighter cells ran hazier than the rest of this week (67 – 167 API)

Haziest hour of the week: Tue at 09:00 MYT, averaging API 167 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	156	155	153	152	151	146	130	115	99	97	96	95	94	92	91	90	90	90	90	89	88	86	85	85
Thu	84	84	84	83	84	83	83	82	82	81	80	79	78	77	76	75	73	72	73	73	73	74	75	74
Fri	74	73	73	74	72	73	73	73	73	73	73	72	71	70	70	69	70	70	69	70	70	70	70	69
Sat	69	69	68	68	67	67	67	67	68	68	68	69	69	71	72	74	76	78	80	82	84	86	89	91
Sun	94	97	99	112	133	151	152	153	153	154	155	155	156	156	156	156	156	155	155	154	154	153	153	152
Mon	152	151	145	135	126	118	114	108	104	99	98	97	97	97	99	113	129	151	152	152	153	154	156	157
Tue	158	160	161	162	163	164	165	165	166	167	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana63%97
UnhealthyTidak Sihat37%57
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 154 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 Segamat

Perbandingan purata mingguan dengan stesen berhampiran

Tangkak99.2 API
Moderate39 away
Batu Pahat116 API
Unhealthy64 away
Kluang101 API
Unhealthy71 away
Alor Gajah85.4 API
Moderate72 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	156	155	153	152	151	146	130	115	99	97	96	95	94	92	91	90	90	90	90	89	88	86	85	85
Thu	84	84	84	83	84	83	83	82	82	81	80	79	78	77	76	75	73	72	73	73	73	74	75	74
Fri	74	73	73	74	72	73	73	73	73	73	73	72	71	70	70	69	70	70	69	70	70	70	70	69
Sat	69	69	68	68	67	67	67	67	68	68	68	69	69	71	72	74	76	78	80	82	84	86	89	91
Sun	94	97	99	112	133	151	152	153	153	154	155	155	156	156	156	156	156	155	155	154	154	153	153	152
Mon	152	151	145	135	126	118	114	108	104	99	98	97	97	97	99	113	129	151	152	152	153	154	156	157
Tue	158	160	161	162	163	164	165	165	166	167	—	—	—	—	—	—	—	—	—	—	—	—	—	—

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	156	155	153	152	151	146	130	115	99	97	96	95	94	92	91	90	90	90	90	89	88	86	85	85
Thu	84	84	84	83	84	83	83	82	82	81	80	79	78	77	76	75	73	72	73	73	73	74	75	74
Fri	74	73	73	74	72	73	73	73	73	73	73	72	71	70	70	69	70	70	69	70	70	70	70	69
Sat	69	69	68	68	67	67	67	67	68	68	68	69	69	71	72	74	76	78	80	82	84	86	89	91
Sun	94	97	99	112	133	151	152	153	153	154	155	155	156	156	156	156	156	155	155	154	154	153	153	152
Mon	152	151	145	135	126	118	114	108	104	99	98	97	97	97	99	113	129	151	152	152	153	154	156	157
Tue	158	160	161	162	163	164	165	165	166	167	—	—	—	—	—	—	—	—	—	—	—	—	—	—