21 – 27 Oct 2026 · Malaysia

Tanah Merah weekly air quality

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

66.7Weekly mean AQI · Moderate

Official DOE API mean: 55.2. 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

150 eligible observations · 0 excluded.

-13.6 AQI compared with the previous week’s eligible mean of 80.3.

Peak AQI: 93 at Tanah Merah · 22 Oct 2026, 05:00 (UTC+8).

Daily US AQI (PM2.5)

Low 31High 93AQI

21 Oct27 Oct

27 OctDaily mean · Peak 5552.7Avg AQI

Based on 6 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	77.3Moderate	87	24 / 0
2026-10-22	90.7Moderate	93	24 / 0
2026-10-23	86.2Moderate	93	24 / 0
2026-10-24	48.7Good	65	24 / 0
2026-10-25	55.9Moderate	61	24 / 0
2026-10-26	44.9Good	58	24 / 0
2026-10-27	52.7Moderate	55	6 / 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	71	72	72	72	72	72	72	77	78	78	78	78	78	80	80	78	78	77	77	78	81	84	86	87
2026-10-22	87	88	90	90	91	93	93	91	91	93	93	93	93	93	93	93	93	91	90	88	87	87	87	88
2026-10-23	90	90	91	93	93	93	91	91	91	91	91	90	90	88	87	86	84	83	83	80	77	75	72	68
2026-10-24	65	64	61	59	58	56	55	53	51	48	44	41	42	41	38	37	37	40	42	45	47	48	48	49
2026-10-25	51	49	51	49	51	52	53	54	55	56	57	58	58	58	59	61	59	59	59	59	59	58	58	58
2026-10-26	58	58	57	57	56	55	54	53	52	51	48	44	41	38	34	31	31	32	32	33	36	38	42	47
2026-10-27	49	52	53	53	54	55	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 32

Moderate: 118

Unhealthy for Sensitive Groups: 0

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

Tanah Merah air quality.
Weekly station review.

21 – 27 Oct 20267 days · Kelantan

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Tanah Merah, Kelantan

During the week of 21 – 27 Oct 2026, air quality at Tanah Merah averaged an Air Pollutant Index (API) of 55.2 (Moderate). Readings peaked at 76.

Station weekly average

55.2API

Moderate · Sederhana

Daily averages36 – 74.5 APIWed → Tue

Explore the week

Week's peak reading: 76ModeratePeak during 7-day window
Rank in Kelantan: #2of 2 stationsState avg: 54.6 API
Good to Moderate air: 100%of hourly readings150 readings recorded
National standing: #13of 68 stationsNational avg: 83.4 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 · 0–100 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	65.5	61	72
Thu, 22 Oct	74.5	72	76
Fri, 23 Oct	71.5	59	76
Sat, 24 Oct	39	28	57
Sun, 25 Oct	47.8	37	54
Mon, 26 Oct	36	23	52
Tue, 27 Oct	42.2	37	46

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 Tanah Merah shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100APIBrighter cells ran hazier than the rest of this week (23 – 76 API)

Haziest hour of the week: Thu at 05:00 MYT, averaging API 76 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	61	62	62	62	62	62	62	65	66	66	66	66	66	67	67	66	66	65	65	66	68	70	71	72
Thu	72	73	74	74	75	76	76	75	75	76	76	76	76	76	76	76	76	75	74	73	72	72	72	73
Fri	74	74	75	76	76	76	75	75	75	75	75	74	74	73	72	71	70	69	69	67	65	64	62	59
Sat	57	56	54	53	52	49	46	43	39	36	33	31	32	31	29	28	28	30	32	34	35	36	36	37
Sun	38	37	38	37	38	40	42	45	47	49	51	52	52	52	53	54	53	53	53	53	53	52	52	52
Mon	52	52	51	51	49	47	45	42	40	38	36	33	31	29	26	23	23	24	24	25	27	29	32	35
Tue	37	40	42	43	45	46	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik37%55
ModerateSederhana63%95
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 150 hourly station readings.

What it meant for this area

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

Nearby monitoring stations around Tanah Merah

Perbandingan purata mingguan dengan stesen berhampiran

Kota Bharu53.9 API
Moderate39 away
Besut47.6 API
Good43 away
Kuala Terengganu59.1 API
Moderate123 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	61	62	62	62	62	62	62	65	66	66	66	66	66	67	67	66	66	65	65	66	68	70	71	72
Thu	72	73	74	74	75	76	76	75	75	76	76	76	76	76	76	76	76	75	74	73	72	72	72	73
Fri	74	74	75	76	76	76	75	75	75	75	75	74	74	73	72	71	70	69	69	67	65	64	62	59
Sat	57	56	54	53	52	49	46	43	39	36	33	31	32	31	29	28	28	30	32	34	35	36	36	37
Sun	38	37	38	37	38	40	42	45	47	49	51	52	52	52	53	54	53	53	53	53	53	52	52	52
Mon	52	52	51	51	49	47	45	42	40	38	36	33	31	29	26	23	23	24	24	25	27	29	32	35
Tue	37	40	42	43	45	46	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

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	61	62	62	62	62	62	62	65	66	66	66	66	66	67	67	66	66	65	65	66	68	70	71	72
Thu	72	73	74	74	75	76	76	75	75	76	76	76	76	76	76	76	76	75	74	73	72	72	72	73
Fri	74	74	75	76	76	76	75	75	75	75	75	74	74	73	72	71	70	69	69	67	65	64	62	59
Sat	57	56	54	53	52	49	46	43	39	36	33	31	32	31	29	28	28	30	32	34	35	36	36	37
Sun	38	37	38	37	38	40	42	45	47	49	51	52	52	52	53	54	53	53	53	53	53	52	52	52
Mon	52	52	51	51	49	47	45	42	40	38	36	33	31	29	26	23	23	24	24	25	27	29	32	35
Tue	37	40	42	43	45	46	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—