30 Sep – 6 Oct 2026 · Malaysia

Kedah weekly air quality

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

72.1Weekly mean AQI · Moderate

Official DOE API mean: 60.4. 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.

+6.8 AQI compared with the previous week’s eligible mean of 65.3.

Peak AQI: 134 at Sungai Petani · 30 Sept 2026, 00:00 (UTC+8).

Daily US AQI (PM2.5)

Low 38High 134AQI

30 Sept6 Oct

6 OctDaily mean · Peak 8460Avg 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	100Moderate	134	96 / 0
2026-10-01	67.7Moderate	86	96 / 0
2026-10-02	80.1Moderate	101	96 / 0
2026-10-03	64.8Moderate	88	96 / 0
2026-10-04	63.4Moderate	83	96 / 0
2026-10-05	66Moderate	93	96 / 0
2026-10-06	60Moderate	84	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	111.8	109.8	109.3	109.3	109.8	108.8	108	108	107.5	107.5	106.8	107.5	106.3	104.5	103	99.8	96.3	92	88.8	85.5	82.5	80.8	79.5	77.8
2026-10-01	77	75.5	75	73	71.8	69.8	69.3	68	67	65.5	64.8	64	62	61	61.8	61.8	63.3	63.8	64.5	65.8	67.3	69.8	70.8	71.8
2026-10-02	73	74.3	74.8	76.5	77.8	78.8	79	80.8	81.8	82.5	83.5	84	84.3	84.3	85.3	84.5	83.8	82.8	82	81	79.8	77.5	76	75
2026-10-03	74	73.3	71.8	70.3	68.8	68	67.5	66.8	66	64.5	64	63	62.5	62.3	61	61.3	61.3	61.5	60.8	61.3	61	61	61.5	62
2026-10-04	62.3	62.8	63.3	63.8	64.3	63.8	64	64	64	63.8	63.5	62.5	61.5	60.8	61	62.3	63.5	64.5	64	63.8	64.3	64.3	64.5	64.5
2026-10-05	63.5	63.5	63.5	64.3	64	65.3	65.8	66.3	66.8	67.3	68.3	68.5	69	69	68.8	68.5	67	66.3	66.3	65.8	65	64.3	63.8	63.5
2026-10-06	63.5	63.5	62.8	62.3	62.3	61.3	60.5	59.8	59.3	58.8	58	57.8	58.3	57.5	57.3	58	59	60.3	—	—	—	—	—	—

Observation categories

Good: 63

Moderate: 540

Unhealthy for Sensitive Groups: 45

Unhealthy: 0

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
Sungai Petani	84.3Moderate	134	69.8	162 / 0
Alor Setar	71.6Moderate	101	61.4	162 / 0
Kulim Hi-Tech	69.3Moderate	113	59.6	162 / 0
Langkawi	63.3Moderate	124	51	162 / 0

Kedah air quality.
Weekly state review.

30 Sep – 6 Oct 20267 days · 4 monitoring stations

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi negeri Kedah

Across Kedah, air quality for the week of 30 Sep – 6 Oct 2026 averaged an Air Pollutant Index (API) of 60.5 (Moderate).

State weekly average

60.5API

Moderate · Sederhana

Daily averages50.9 – 79.5 APIWed → Tue

Explore the week

State's peak reading: 98Sungai PetaniPeak reading across state
Cleanest area in state: 51LangkawiLowest weekly average
Good to Moderate air: 100%of all readings648 readings
National standing: #3of 16 states/territoriesNational avg: 83 API

Seven days of air quality in Kedah

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 · 0–125 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	79.5	56	98
Thu, 1 Oct	58.4	43	71
Fri, 2 Oct	67.2	57	81
Sat, 3 Oct	55.9	39	73
Sun, 4 Oct	53.4	31	69
Mon, 5 Oct	55.2	30	76
Tue, 6 Oct	50.9	29	70

Monitoring stations in Kedah

Kedudukan stesen pemantauan di seluruh negeri mengikut purata mingguan

Scale 0 – 100

Langkawi51avg
Kedah
29Moderate93
Alor Setar61.4avg
Kedah
47Moderate81
Sungai Petani69.8avg
Kedah
55Moderate98
Kulim Hi-Tech59.6avg
Kedah
43Moderate87

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.

0255075100APIBrighter cells ran hazier than the rest of this week (48.8 – 86.3 API)

Haziest hour of the week: Wed at 00:00 MYT, averaging API 86.3 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	86.3	85.3	85	85	85.3	84.8	84.5	84.5	84.3	84.3	83.8	84	83.5	82.5	81.5	79.8	77.5	75	73	70.8	68.8	67.5	66.8	65.8
Thu	65	64.3	63.8	62.5	61.5	60.3	59.8	59	58	57	56.3	55.3	53.3	52.8	53.5	53.8	55.8	56	56.5	57.3	58.5	60	60.8	61.5
Fri	62.3	63.3	63.8	64.8	65.8	66.3	66.5	67.8	68.3	69	69.5	69.8	70	70	70.5	70	69.5	69	68.5	68	67	65.5	64.5	63.8
Sat	63.3	62.5	61.5	60.5	59.5	59	58.8	58	57.5	56.5	55.8	55	53.8	53.8	52.8	53	53	52.8	52.3	52.5	52.5	52.3	52.5	52.8
Sun	52.8	53	53.5	53.8	54	53.8	54	54	54	53.8	53.5	52.8	52.3	51.8	52	52.8	53.5	54	53.8	53.5	54	54	54	54
Mon	53.5	53.5	53.5	54	53.8	54.5	55	55.5	55.8	56	56.8	57	57.3	57.3	57.3	57	56	55.5	55.3	55	54.5	54	53.8	53.5
Tue	53.5	53.5	53	52.5	52.5	52	51.5	51	50.8	50.3	49.5	49.3	49.8	49.3	48.8	49	50	50.8	—	—	—	—	—	—

How readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik15%98
ModerateSederhana85%550
UnhealthyTidak Sihat0%0
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