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14 – 20 Oct 2026 · Malaysia

Nilai weekly air quality

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

184.1Weekly mean AQI · Unhealthy

Official DOE API mean: 175.2. 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

168 eligible observations · 0 excluded.

+11.2 AQI compared with the previous week’s eligible mean of 172.9.

Peak AQI: 208 at Nilai · 15 Oct 2026, 14:00 (UTC+8).

Daily US AQI (PM2.5)

Low 165High 208AQI
0112.5225
14 Oct20 Oct
20 OctDaily mean · Peak 171168.4Avg AQI

Based on 24 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.

DayMean AQIPeak AQIEligible / excluded
2026-10-14184.4Unhealthy20324 / 0
2026-10-15200.5Very Unhealthy20824 / 0
2026-10-16197.6Unhealthy20624 / 0
2026-10-17184.7Unhealthy19224 / 0
2026-10-18179.6Unhealthy18524 / 0
2026-10-19173.1Unhealthy18224 / 0
2026-10-20168.4Unhealthy17124 / 0

Hourly means (UTC+8)

Day01234567891011121314151617181920212223
2026-10-14171173175177178179181182182182182182182182185185186186189192194197200203
2026-10-15198197196196196197197197197200198198200206208208208208206204203200198197
2026-10-16200204204206206204204203204204206206203197196193192190189188188186185185
2026-10-17184182181179181181182182182181181182185186186188190190192190189188186185
2026-10-18185185184184184182181181179179178177177179179178177175177178178178178178
2026-10-19179181181182181178177177175174175175173171169169169169167166166166166169
2026-10-20166166166165165167169169170171169167170169170170170170170169169169169166

Observation categories

Good: 0

Moderate: 0

Unhealthy for Sensitive Groups: 0

Unhealthy: 147

Very Unhealthy: 21

Hazardous: 0

US AQI scale
AQICategory
0–50Good
51–100Moderate
101–150Unhealthy for Sensitive Groups
151–200Unhealthy
201–300Very Unhealthy
301+Hazardous
View the official DOE API report
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Nilai air quality.
Weekly station review.

7 days · Negeri Sembilan

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

During the week of 14 – 20 Oct 2026, air quality at Nilai averaged an Air Pollutant Index (API) of 175.2 (Unhealthy). Readings peaked at 191.

Station weekly average

175.2API

Unhealthy · Tidak Sihat

Daily averages163.7 – 187 APIWed → Tue
Explore the week
Week's peak reading
191UnhealthyPeak during 7-day window
Rank in Negeri Sembilan
#3of 3 stationsState avg: 166.9 API
Good to Moderate air
0%of hourly readings168 readings recorded
National standing
#67of 68 stationsNational avg: 108.7 API

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 Nilai shows local patterns like traffic peaks and afternoon haze accumulation.

WedWed 00:00 MYT — API 166Wed 01:00 MYT — API 167Wed 02:00 MYT — API 169Wed 03:00 MYT — API 170Wed 04:00 MYT — API 171Wed 05:00 MYT — API 172Wed 06:00 MYT — API 173Wed 07:00 MYT — API 174Wed 08:00 MYT — API 174Wed 09:00 MYT — API 174Wed 10:00 MYT — API 174Wed 11:00 MYT — API 174Wed 12:00 MYT — API 174Wed 13:00 MYT — API 174Wed 14:00 MYT — API 176Wed 15:00 MYT — API 176Wed 16:00 MYT — API 177Wed 17:00 MYT — API 177Wed 18:00 MYT — API 179Wed 19:00 MYT — API 181Wed 20:00 MYT — API 183Wed 21:00 MYT — API 185Wed 22:00 MYT — API 187Wed 23:00 MYT — API 188ThuThu 00:00 MYT — API 186Thu 01:00 MYT — API 185Thu 02:00 MYT — API 184Thu 03:00 MYT — API 184Thu 04:00 MYT — API 184Thu 05:00 MYT — API 185Thu 06:00 MYT — API 185Thu 07:00 MYT — API 185Thu 08:00 MYT — API 185Thu 09:00 MYT — API 187Thu 10:00 MYT — API 186Thu 11:00 MYT — API 186Thu 12:00 MYT — API 187Thu 13:00 MYT — API 190Thu 14:00 MYT — API 191Thu 15:00 MYT — API 191Thu 16:00 MYT — API 191Thu 17:00 MYT — API 191Thu 18:00 MYT — API 190Thu 19:00 MYT — API 189Thu 20:00 MYT — API 188Thu 21:00 MYT — API 187Thu 22:00 MYT — API 186Thu 23:00 MYT — API 185FriFri 00:00 MYT — API 187Fri 01:00 MYT — API 189Fri 02:00 MYT — API 189Fri 03:00 MYT — API 190Fri 04:00 MYT — API 190Fri 05:00 MYT — API 189Fri 06:00 MYT — API 189Fri 07:00 MYT — API 188Fri 08:00 MYT — API 189Fri 09:00 MYT — API 189Fri 10:00 MYT — API 190Fri 11:00 MYT — API 190Fri 12:00 MYT — API 188Fri 13:00 MYT — API 185Fri 14:00 MYT — API 184Fri 15:00 MYT — API 182Fri 16:00 MYT — API 181Fri 17:00 MYT — API 180Fri 18:00 MYT — API 179Fri 19:00 MYT — API 178Fri 20:00 MYT — API 178Fri 21:00 MYT — API 177Fri 22:00 MYT — API 176Fri 23:00 MYT — API 176SatSat 00:00 MYT — API 175Sat 01:00 MYT — API 174Sat 02:00 MYT — API 173Sat 03:00 MYT — API 172Sat 04:00 MYT — API 173Sat 05:00 MYT — API 173Sat 06:00 MYT — API 174Sat 07:00 MYT — API 174Sat 08:00 MYT — API 174Sat 09:00 MYT — API 173Sat 10:00 MYT — API 173Sat 11:00 MYT — API 174Sat 12:00 MYT — API 176Sat 13:00 MYT — API 177Sat 14:00 MYT — API 177Sat 15:00 MYT — API 178Sat 16:00 MYT — API 180Sat 17:00 MYT — API 180Sat 18:00 MYT — API 181Sat 19:00 MYT — API 180Sat 20:00 MYT — API 179Sat 21:00 MYT — API 178Sat 22:00 MYT — API 177Sat 23:00 MYT — API 176SunSun 00:00 MYT — API 176Sun 01:00 MYT — API 176Sun 02:00 MYT — API 175Sun 03:00 MYT — API 175Sun 04:00 MYT — API 175Sun 05:00 MYT — API 174Sun 06:00 MYT — API 173Sun 07:00 MYT — API 173Sun 08:00 MYT — API 172Sun 09:00 MYT — API 172Sun 10:00 MYT — API 171Sun 11:00 MYT — API 170Sun 12:00 MYT — API 170Sun 13:00 MYT — API 172Sun 14:00 MYT — API 172Sun 15:00 MYT — API 171Sun 16:00 MYT — API 170Sun 17:00 MYT — API 169Sun 18:00 MYT — API 170Sun 19:00 MYT — API 171Sun 20:00 MYT — API 171Sun 21:00 MYT — API 171Sun 22:00 MYT — API 171Sun 23:00 MYT — API 171MonMon 00:00 MYT — API 172Mon 01:00 MYT — API 173Mon 02:00 MYT — API 173Mon 03:00 MYT — API 174Mon 04:00 MYT — API 173Mon 05:00 MYT — API 171Mon 06:00 MYT — API 170Mon 07:00 MYT — API 170Mon 08:00 MYT — API 169Mon 09:00 MYT — API 168Mon 10:00 MYT — API 169Mon 11:00 MYT — API 169Mon 12:00 MYT — API 167Mon 13:00 MYT — API 166Mon 14:00 MYT — API 164Mon 15:00 MYT — API 164Mon 16:00 MYT — API 164Mon 17:00 MYT — API 164Mon 18:00 MYT — API 163Mon 19:00 MYT — API 162Mon 20:00 MYT — API 162Mon 21:00 MYT — API 162Mon 22:00 MYT — API 162Mon 23:00 MYT — API 164TueTue 00:00 MYT — API 162Tue 01:00 MYT — API 162Tue 02:00 MYT — API 162Tue 03:00 MYT — API 161Tue 04:00 MYT — API 161Tue 05:00 MYT — API 163Tue 06:00 MYT — API 164Tue 07:00 MYT — API 164Tue 08:00 MYT — API 165Tue 09:00 MYT — API 166Tue 10:00 MYT — API 164Tue 11:00 MYT — API 163Tue 12:00 MYT — API 165Tue 13:00 MYT — API 164Tue 14:00 MYT — API 165Tue 15:00 MYT — API 165Tue 16:00 MYT — API 165Tue 17:00 MYT — API 165Tue 18:00 MYT — API 165Tue 19:00 MYT — API 164Tue 20:00 MYT — API 164Tue 21:00 MYT — API 164Tue 22:00 MYT — API 164Tue 23:00 MYT — API 1620003060912151821
050100150200250APIBrighter cells ran hazier than the rest of this week (161 – 191 API)

Haziest hour of the week: Thu at 14:00 MYT, averaging API 191 nationwide.

View the hourly figures as a table
National average API by hour, Malaysia Time
Day000102030405060708091011121314151617181920212223
Wed166167169170171172173174174174174174174174176176177177179181183185187188
Thu186185184184184185185185185187186186187190191191191191190189188187186185
Fri187189189190190189189188189189190190188185184182181180179178178177176176
Sat175174173172173173174174174173173174176177177178180180181180179178177176
Sun176176175175175174173173172172171170170172172171170169170171171171171171
Mon172173173174173171170170169168169169167166164164164164163162162162162164
Tue162162162161161163164164165166164163165164165165165165165164164164164162

How the readings split

Pecahan bacaan mengikut kategori IPU

Unhealthy: 100% (168 readings)100%Unhealthy
  • GoodBaik0%0
  • ModerateSederhana0%0
  • UnhealthyTidak Sihat100%168
  • Very UnhealthySangat Tidak Sihat0%0
  • HazardousBerbahaya0%0

Based on 168 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
APICategoryKategori
0–50GoodBaik
51–100ModerateSederhana
101–200UnhealthyTidak Sihat
201–300Very UnhealthySangat Tidak Sihat
301+HazardousBerbahaya

Nearby monitoring stations around Nilai

Perbandingan purata mingguan dengan stesen berhampiran