Orchard Singapore air quality readings

Orchard is assigned to NEA’s South air-quality reporting region. The readings below cover that region, not a monitor in Orchard. See NEA’s area guide.

US AQI · PM2.5

144Unhealthy for Sensitive Groups

Official NEA PSI: 98

Calculated from NEA’s 24-hour PM2.5 concentration using US AQI breakpoints. Not an official all-pollutant AQI or NowCast. Calculation details

The south region's latest available PSI is 98 (moderate). NEA reports this regional value independently of the other four regions.

24-hour PSI
98
1-hour PM2.5 (µg/m³)
61

The Marina Bay artwork illustrates the region. It is not a monitoring station location or a live view of visibility.

US AQI (PM2.5) is calculated from NEA’s 24-hour PM2.5 concentration. It is not an official all-pollutant AQI or NowCast.

Each row shows the latest available observation for that region. PSI and PM2.5 can have different observation times. Missing readings stay unavailable.

Air quality across all five regions
RegionUS AQI · PM2.524-hour PSI1-hour PM2.5 (µg/m³)
South144Unhealthy for Sensitive Groups98Moderate61
Central160Unhealthy115Unhealthy72
North124Unhealthy for Sensitive Groups89Moderate49
East147Unhealthy for Sensitive Groups99Moderate58
West168Unhealthy126Unhealthy96

What does the 24-hour PSI mean?

NEA's Pollutant Standards Index (PSI) combines six air pollutants. The 24-hour PSI describes air quality over the preceding day; it is not an instant measurement of the air outside. Use NEA's official advisories for activity planning.

How is 1-hour PM2.5 different?

PM2.5 measures the concentration of fine particles in micrograms per cubic metre (µg/m³). The 1-hour reading reflects more recent changes. It is a concentration, not a PSI score, and PSI categories must not be applied to it.

Sources and observation times

Readings come from Singapore's National Environment Agency through data.gov.sg. The interactive view checks every five minutes. The observation time is when the measurement was recorded, not when you opened the page. Readings at least two hours old are labelled as older readings. If the source fails, saved observations keep their original dates and are labelled as saved readings.

Haze Monitor is independent of NEA. Regional readings do not describe conditions at an exact address. Singapore PSI and Malaysia API use different calculations and are not interchangeable.

NEA readings and advisories · Singapore Open Data Licence

Singapore neighbourhoods

Neighbourhood pages use their NEA reporting region. Local conditions can differ within a region.

Explore each region

Malaysia air quality · Singapore country overview

South region · NEA regional reading

Orchard Singapore air quality and haze

US Air Quality Index (AQI) · PM2.5

144

Orchard uses NEA’s South regional reading. This is not a measurement within Orchard.

Air qualityUnhealthy for Sensitive Groups
GoodHazardous

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

South region · 20 Oct 2026, 10:00 SGTReading time unavailable

Official NEA PSI: 9820 Oct 2026, 10:00 SGT

1-hour PM2.5 61 µg/m³20 Oct 2026, 10:00 SGT · Reading time unavailable
NEA Singapore ↗
About Orchard Singapore air quality

The main number is PM2.5 US AQI calculated from NEA’s 24-hour PM2.5 concentration. It is not an official all-pollutant AQI or NowCast. Official PSI and 1-hour PM2.5 are shown separately. Region readings are not measurements at the illustrated landmark. We check every five minutes and flag readings at least two hours old.

PSI and Malaysia's API use different calculations. PM2.5 is a concentration in µg/m³, not an index. The Marina Bay scene is an illustration, not a live camera view.

Data from data.gov.sg under the Singapore Open Data Licence. See NEA's official advisories for activity planning.

Singapore air qualityHow readings workMalaysia air qualityStation map

Singapore regions

Thailand · Modelled AQIIndonesia · Modelled AQIVietnam · Modelled AQIMalaysia citiesExplore all stations