30 Sep – 6 Oct 2026 · Malaysia

Negeri Sembilan weekly air quality

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

127.5Weekly mean AQI · Unhealthy for Sensitive Groups

Official DOE API mean: 111.8. 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

504 eligible observations · 0 excluded.

+29.9 AQI compared with the previous week’s eligible mean of 97.6.

Peak AQI: 193 at Nilai · 6 Oct 2026, 23:00 (UTC+8).

Daily US AQI (PM2.5)

Low 61High 193AQI

30 Sept6 Oct

6 OctDaily mean · Peak 193157.7Avg 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	159.2Unhealthy	182	72 / 0
2026-10-01	139.3Unhealthy for Sensitive Groups	156	72 / 0
2026-10-02	93.2Moderate	143	72 / 0
2026-10-03	87.9Moderate	118	72 / 0
2026-10-04	125.3Unhealthy for Sensitive Groups	151	72 / 0
2026-10-05	129.6Unhealthy for Sensitive Groups	156	72 / 0
2026-10-06	157.7Unhealthy	193	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	173.3	172.7	172.3	171.7	171	170	169.3	168.3	166.7	166	165.3	162.7	159	155.3	152.7	150.7	149	148.3	147	146.7	145.3	145.7	145.3	146.7
2026-10-01	146.7	146.3	146.7	147.3	147.7	147.3	147	147	146.7	145.3	144.3	144.7	143.7	141.7	140	138.3	136	132.3	129.3	127.7	126.7	125.3	123.7	122.3
2026-10-02	119.7	117.7	115	112.3	110.3	106.7	103.7	100.7	97.3	95.3	92.7	90.3	87.7	85.7	84	82.3	82	81.3	80.7	79.3	79.3	78.7	77.3	77.3
2026-10-03	77	78.3	79.3	79.3	79.7	81	81.7	83.3	85.3	85	84	84.3	85.3	86	87.3	89.3	91	92.7	93.7	96.3	99	101.3	104	106.3
2026-10-04	108.3	109.3	111.3	112.7	114.7	116.7	119.3	121.3	121.7	125	128	130	132.3	133.3	134.7	135.7	134.3	133	132.3	132.3	131	130	129.3	129.7
2026-10-05	128.7	127.7	127.3	127	126.3	125.7	125.7	125.7	125.7	125.3	125.7	125.3	126	127.3	129	129.3	131.7	133.7	135	135.7	136.3	137	137	137.3
2026-10-06	138.7	139	139.3	140	141	141.7	143.7	144.7	146.3	148	150.7	154.7	157.7	161.3	164.7	167.7	170.3	172	173.7	175.3	176.3	178.3	179.3	181.3

Observation categories

Good: 0

Moderate: 118

Unhealthy for Sensitive Groups: 237

Unhealthy: 149

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
Nilai	141.8Unhealthy for Sensitive Groups	193	129.8	168 / 0
Seremban	130.4Unhealthy for Sensitive Groups	186	114	168 / 0
Port Dickson	110.2Unhealthy for Sensitive Groups	169	91.6	168 / 0

Negeri Sembilan air quality.
Weekly state review.

30 Sep – 6 Oct 20267 days · 3 monitoring stations

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi negeri Negeri Sembilan

Across Negeri Sembilan, air quality for the week of 30 Sep – 6 Oct 2026 averaged an Air Pollutant Index (API) of 111.8 (Unhealthy).

State weekly average

111.8API

Unhealthy · Tidak Sihat

Daily averages72.3 – 151.1 APIWed → Tue

Explore the week

State's peak reading: 182NilaiPeak reading across state
Cleanest area in state: 91.6Port DicksonLowest weekly average
Good to Moderate air: 56%of all readings504 readings
National standing: #13of 16 states/territoriesNational avg: 84.1 API

Seven days of air quality in Negeri Sembilan

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	151.1	93	174
Thu, 1 Oct	120.3	85	155
Fri, 2 Oct	76	54	123
Sat, 3 Oct	72.3	55	90
Sun, 4 Oct	104.6	74	151
Mon, 5 Oct	109.4	81	155
Tue, 6 Oct	148.9	84	182

Monitoring stations in Negeri Sembilan

Kedudukan stesen pemantauan di seluruh negeri mengikut purata mingguan

Scale 0 – 200

Nilai129.8avg
Negeri Sembilan
75Unhealthy182
Seremban114avg
Negeri Sembilan
66Unhealthy177
Port Dickson91.6avg
Negeri Sembilan
54Moderate164

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.

050100150200APIBrighter cells ran hazier than the rest of this week (65.3 – 173.3 API)

Haziest hour of the week: Tue at 23:00 MYT, averaging API 173.3 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	167.3	167	166.7	166	165.7	165	164.7	163.7	162.7	162	161.3	159.7	154	144	138.7	137.3	136.3	136	135.3	135	134.3	134.3	134	134.7
Thu	134.7	134.3	134.3	134.7	134.7	135	134	133.3	132.3	128.7	125.3	124	121.7	118.7	116	115	110.7	106	103	102.3	102.7	102.7	101.7	100.3
Fri	97.3	95.3	92.7	88.3	85.7	83.7	82	80	78	76.7	75	73.7	72	70.7	69.7	68.7	68.3	68	67.7	66.7	66.7	66.3	65.3	65.3
Sat	65.3	66	66.7	66.7	67	67.7	68.3	69.3	70.7	70.7	70	70.3	71	71.3	72.3	73.7	74.7	75.7	76.3	77.7	79	80.3	81.7	83.3
Sun	84.3	85	86	87	88	89	90.3	91.3	91.7	93.3	102	112	119.3	122.7	125.3	128.3	126.3	122.3	117	114	109.7	107.3	108.7	109.7
Mon	108.3	107.3	108.3	106.7	105.7	103.7	101.7	100.7	101.7	102	100.7	100	100.3	103.7	107.3	109.3	111.7	112.7	113.3	118.3	122.3	125.3	126.7	128.7
Tue	130.3	130.7	131	131.3	132	132.7	133.7	134.3	135.3	136.7	138.3	140.3	142.3	149	158.7	163.3	165.3	166.7	167.7	169	169.7	171	172	173.3

How readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana56%280
UnhealthyTidak Sihat44%224
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 504 hourly station readings.

Health guidelines

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