30 Sep – 6 Oct 2026 · Malaysia

Terengganu weekly air quality

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

95.8Weekly mean AQI · Moderate

Official DOE API mean: 80.9. 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

648 eligible observations · 0 excluded.

+25.8 AQI compared with the previous week’s eligible mean of 70.

Peak AQI: 159 at Kuala Terengganu · 30 Sept 2026, 03:00 (UTC+8).

Daily US AQI (PM2.5)

Low 55High 159AQI

30 Sept6 Oct

6 OctDaily mean · Peak 158121.9Avg AQI

Based on 72 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	139.8Unhealthy for Sensitive Groups	159	96 / 0
2026-10-01	94.6Moderate	142	96 / 0
2026-10-02	76.1Moderate	94	96 / 0
2026-10-03	69.7Moderate	90	96 / 0
2026-10-04	77.4Moderate	117	96 / 0
2026-10-05	98Moderate	126	96 / 0
2026-10-06	121.9Unhealthy for Sensitive Groups	158	72 / 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	143.3	144.8	145.3	146	146.8	147.5	147.8	148.5	149	149.3	149	148.3	146	143.3	141.3	139.3	136.8	133.5	131	129	126.8	123.8	120.8	118.3
2026-10-01	115.8	112.8	110.3	108.3	105.3	102.3	100	98.8	97	95.5	94	93.3	92.5	91.5	89.8	88	87.8	86.3	85.8	84.5	83.3	82.5	82.8	81.8
2026-10-02	81.3	81.3	81	80.8	80.5	80	80	79.5	79.5	78.5	77.8	76.8	75.3	74.8	73.8	73.3	73	72.3	71.8	71.3	71.3	71.3	71	70.8
2026-10-03	71.3	71.3	71.3	70.3	69.8	69.5	69.3	68.8	68.3	68.3	68.3	68	67.5	68	68.8	68.8	68.5	69.3	70.5	71.3	72	71.8	71.3	70.5
2026-10-04	69.3	69	69.3	69.5	70.3	70.5	71.5	71.8	72.5	73	75	74.8	75.5	77.8	79.3	80.8	83.3	85.5	86.5	86.5	86	86.5	87.3	87.8
2026-10-05	88.3	88	88.5	89.3	90.8	91.5	92	92.5	93	94.3	95.5	97	98	99	101	101.8	102.5	104	104	105.5	107.5	108.8	109.3	109.3
2026-10-06	110.8	112.5	115.3	116.8	117.8	119	120	120	121.5	122.3	123.8	125.5	126.5	127.8	128.3	128	128.5	129.5	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 413

Unhealthy for Sensitive Groups: 181

Unhealthy: 54

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

Stations by US AQI

Sorted by eligible mean AQI. Counts show the available coverage.

Location	Mean AQI	Peak AQI	Official DOE API mean	Eligible / excluded
Kuala Terengganu	101.5Unhealthy for Sensitive Groups	159	86.8	162 / 0
Kemaman	100.9Unhealthy for Sensitive Groups	158	85.7	162 / 0
Paka	97.1Moderate	158	82	162 / 0
Besut	83.9Moderate	136	69	162 / 0

Terengganu air quality.
Weekly state review.

30 Sep – 6 Oct 20267 days · 4 monitoring stations

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi negeri Terengganu

Across Terengganu, air quality for the week of 30 Sep – 6 Oct 2026 averaged an Air Pollutant Index (API) of 80.9 (Moderate).

State weekly average

80.9API

Moderate · Sederhana

Daily averages60.1 – 123.9 APIWed → Tue

Explore the week

State's peak reading: 157Kuala TerengganuPeak reading across state
Cleanest area in state: 69BesutLowest weekly average
Good to Moderate air: 88%of all readings648 readings
National standing: #9of 16 states/territoriesNational avg: 83 API

Seven days of air quality in Terengganu

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	123.9	82	157
Thu, 1 Oct	76.8	64	116
Fri, 2 Oct	64.5	55	77
Sat, 3 Oct	60.1	51	74
Sun, 4 Oct	65	46	89
Mon, 5 Oct	78.3	62	94
Tue, 6 Oct	103.2	74	156

Monitoring stations in Terengganu

Kedudukan stesen pemantauan di seluruh negeri mengikut purata mingguan

Scale 0 – 175

Kemaman85.7avg
Terengganu
54Moderate156
Paka82avg
Terengganu
54Moderate156
Kuala Terengganu86.8avg
Terengganu
64Moderate157
Besut69avg
Terengganu
46Moderate99

The week, hour by hour

Purata negeri bagi setiap jam sepanjang tujuh hari

Read each row from midnight to 11pm, in Malaysia Time. Hourly state averages show when air quality shifted during each day of the week.

050100150APIBrighter cells ran hazier than the rest of this week (58.8 – 139.8 API)

Haziest hour of the week: Wed at 08:00 MYT, averaging API 139.8 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	133	135	136.3	137.3	138	139	139	139.5	139.8	139.8	139.5	137	130.5	120	115.5	112	110.8	109	107.8	106.8	105.5	103.8	101.8	97
Thu	92	87.5	85.8	84.8	83.3	81.5	80.3	79.5	78.5	77.5	76.8	76.3	75.8	75	74	72.8	72.5	71.5	71	70.3	69.5	69	69	68.5
Fri	68	68	67.8	67.8	67.5	67.3	67.3	67	67	66.3	65.8	64.8	64	63.5	62.8	62.5	62.3	61.8	61.5	61	61	61	61	61
Sat	61.3	61.3	61	60.5	60.3	60	59.8	59.5	59	59	59	59	58.8	59	59.5	59.5	59.3	59.8	60.8	61.3	61.8	61.5	61.3	60.5
Sun	58.8	58.8	58.8	59.3	60	60.5	61.3	61.5	62.3	62.5	63.8	63.5	64.3	65.8	66.5	67.5	68.8	70.3	70.8	70.8	70.5	71	71.5	72
Mon	72.3	72.3	72.5	73	73.8	74.3	74.5	75	75.3	76	76.8	77.8	78.5	79	80.3	81	81.5	82.3	82.3	83	84	84.5	84.8	85
Tue	85.8	86.8	88.3	89	89.5	90.3	92.8	96	101.5	106.5	110.3	115.8	116.5	117.3	117.8	117.8	118	118.5	—	—	—	—	—	—

How readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik1%6
ModerateSederhana87%565
UnhealthyTidak Sihat12%77
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 648 hourly station readings.

Health guidelines

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