Johor Bahru air quality today

Kualiti udara Johor Bahru hari ini

US AQI (PM2.5): 173 · Unhealthy.

Calculated from DOE’s rounded PM2.5 API using a 24-hour average and US AQI breakpoints. Not an official all-pollutant US AQI or real-time NowCast.

Johor Bahru air quality is unhealthy with an Air Pollutant Index (API) of 167, measured at 04:00 MYT, 30 Sept 2026 at the Larkin station, 0.6 km from the city centre.

Kualiti udara Johor Bahru berada pada tahap tidak sihat dengan bacaan Indeks Pencemaran Udara (IPU) 167 pada 04:00 MYT, 30 Sept 2026 di stesen Larkin, 0.6 km dari pusat bandar.

US AQI (PM2.5)
173Unhealthy
Official DOE API / IPU
167
DOE API category
UnhealthyTidak Sihat
Station
Larkin0.6 km · Johor
Observed
04:00 MYT, 30 Sept 2026Older or archived reading
Main pollutant
PM2.5

Source: Department of Environment Malaysia (Jabatan Alam Sekitar), nearest station to the Johor Bahru city centre. A station reading, not a city average.

Understanding the official DOE API

Maksud bacaan ini

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
Johor

Johor Bahru air quality and haze

US Air Quality Index (AQI) · PM2.5

173
Air qualityUnhealthy
GoodHazardous

PM2.5 · 24-hour average · How this is calculated

Larkin station · 0.6 kmLast known reading · Reading time unavailable

Official DOE API: 167

DOE Malaysia ↗
About Johor Bahru air quality

The main number is PM2.5 US AQI calculated from Malaysia’s official Air Pollutant Index (API). We derive the 24-hour PM2.5 concentration from the rounded API and apply US thresholds. It is not an official all-pollutant AQI or a real-time NowCast.

The source API comes from the nearest DOE monitor within 75 km of the city centre. It is a station reading, not a city average. The app checks for updates every five minutes and shows the age of the observation.

The Johor–Singapore Causeway and Johor Bahru skyline artwork is an illustration. The haze effect follows the API reading; it is not a camera view.

Singapore air qualityHow readings workMalaysia air qualityStation map

Cities

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