21 – 27 Oct 2026 · Malaysia

Port Dickson weekly air quality

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

118.1Weekly mean AQI · Unhealthy for Sensitive Groups

Official DOE API mean: 104.3. 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

149 eligible observations · 0 excluded.

-44.7 AQI compared with the previous week’s eligible mean of 162.8.

Peak AQI: 158 at Port Dickson · 21 Oct 2026, 00:00 (UTC+8).

Daily US AQI (PM2.5)

Low 40High 158AQI

21 Oct27 Oct

27 OctDaily mean · Peak 5452.8Avg AQI

Based on 5 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	155Unhealthy	158	24 / 0
2026-10-22	147.1Unhealthy for Sensitive Groups	152	24 / 0
2026-10-23	137.8Unhealthy for Sensitive Groups	147	24 / 0
2026-10-24	146.4Unhealthy for Sensitive Groups	152	24 / 0
2026-10-25	88.5Moderate	134	24 / 0
2026-10-26	47.2Good	53	24 / 0
2026-10-27	52.8Moderate	54	5 / 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	158	158	156	156	155	155	156	156	156	156	156	156	155	156	155	155	155	155	154	154	152	152	152	152
2026-10-22	152	152	152	152	152	152	152	152	151	150	151	150	147	147	145	145	143	142	141	141	141	140	140	140
2026-10-23	142	143	145	146	147	145	142	139	136	134	132	132	136	132	134	134	136	136	136	134	134	136	138	138
2026-10-24	139	139	139	139	140	144	148	151	152	152	152	152	150	151	151	148	148	148	147	147	147	146	143	140
2026-10-25	134	128	122	117	109	103	99	96	93	90	87	87	86	83	83	81	77	74	70	67	64	61	58	55
2026-10-26	53	53	53	52	52	51	47	47	45	45	44	42	40	44	42	41	40	44	47	47	49	51	51	52
2026-10-27	52	52	53	53	54	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 15

Moderate: 32

Unhealthy for Sensitive Groups: 61

Unhealthy: 41

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

Port Dickson air quality.
Weekly station review.

21 – 27 Oct 20267 days · Negeri Sembilan

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Port Dickson, Negeri Sembilan

During the week of 21 – 27 Oct 2026, air quality at Port Dickson averaged an Air Pollutant Index (API) of 104.3 (Unhealthy). Readings peaked at 156.

Station weekly average

104.3API

Unhealthy · Tidak Sihat

Daily averages36 – 154.1 APIWed → Tue

Explore the week

Week's peak reading: 156UnhealthyPeak during 7-day window
Rank in Negeri Sembilan: #1of 3 stationsState avg: 125.6 API
Good to Moderate air: 46%of hourly readings149 readings recorded
National standing: #46of 68 stationsNational avg: 83.6 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	154.1	152	156
Thu, 22 Oct	135.8	108	152
Fri, 23 Oct	106.8	97	136
Sat, 24 Oct	133.9	105	152
Sun, 25 Oct	71.8	46	98
Mon, 26 Oct	36	30	43
Tue, 27 Oct	42	40	45

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 Port Dickson shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100125150175APIBrighter cells ran hazier than the rest of this week (30 – 156 API)

Haziest hour of the week: Wed at 00:00 MYT, averaging API 156 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	156	155	155	154	154	155	155	155	155	155	155	154	155	154	154	154	154	153	153	152	152	152	152
Thu	152	152	152	152	152	152	152	152	151	148	151	149	139	137	128	129	122	118	115	115	113	109	108	111
Fri	116	121	129	133	136	128	118	106	99	98	97	97	99	97	98	98	99	99	99	98	98	99	100	102
Sat	106	107	107	105	111	125	141	151	152	152	152	152	150	151	151	141	140	141	139	138	136	134	122	109
Sun	98	95	92	89	85	82	80	78	76	74	72	72	71	69	69	68	65	63	60	58	56	54	52	46
Mon	42	43	43	41	41	39	35	35	34	34	33	32	30	33	32	31	30	33	35	35	37	38	39	40
Tue	40	40	42	43	45	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik20%30
ModerateSederhana26%38
UnhealthyTidak Sihat54%81
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 149 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 Port Dickson

Perbandingan purata mingguan dengan stesen berhampiran

Seremban134.4 API
Unhealthy33 away
Alor Gajah108.3 API
Unhealthy40 away
Bukit Rambai124.2 API
Unhealthy41 away
Nilai138 API
Unhealthy43 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	156	155	155	154	154	155	155	155	155	155	155	154	155	154	154	154	154	153	153	152	152	152	152
Thu	152	152	152	152	152	152	152	152	151	148	151	149	139	137	128	129	122	118	115	115	113	109	108	111
Fri	116	121	129	133	136	128	118	106	99	98	97	97	99	97	98	98	99	99	99	98	98	99	100	102
Sat	106	107	107	105	111	125	141	151	152	152	152	152	150	151	151	141	140	141	139	138	136	134	122	109
Sun	98	95	92	89	85	82	80	78	76	74	72	72	71	69	69	68	65	63	60	58	56	54	52	46
Mon	42	43	43	41	41	39	35	35	34	34	33	32	30	33	32	31	30	33	35	35	37	38	39	40
Tue	40	40	42	43	45	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

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	156	155	155	154	154	155	155	155	155	155	155	154	155	154	154	154	154	153	153	152	152	152	152
Thu	152	152	152	152	152	152	152	152	151	148	151	149	139	137	128	129	122	118	115	115	113	109	108	111
Fri	116	121	129	133	136	128	118	106	99	98	97	97	99	97	98	98	99	99	99	98	98	99	100	102
Sat	106	107	107	105	111	125	141	151	152	152	152	152	150	151	151	141	140	141	139	138	136	134	122	109
Sun	98	95	92	89	85	82	80	78	76	74	72	72	71	69	69	68	65	63	60	58	56	54	52	46
Mon	42	43	43	41	41	39	35	35	34	34	33	32	30	33	32	31	30	33	35	35	37	38	39	40
Tue	40	40	42	43	45	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—