Singapore haze and air quality today (PSI, PM2.5)

Friday 9 October: NEA's latest 24-hour PSI, at 5 am on 9 October (Singapore time), was 156 (Unhealthy) in the Central region, the highest of Singapore's five regions. The CAMS global model forecasts a daily mean of 100.6 µg/m³ PM2.5 for Singapore today, above the WHO interim target 1 (75 µg/m³). SkyPollen does not yet have a pollen level for Singapore: no pollen forecast exists for it.

NEA readings by region

• North
  24-h PSI 107 Unhealthy · 1-h PM2.5 87 µg/m³ Band II (Elevated)
• South
  24-h PSI 131 Unhealthy · 1-h PM2.5 132 µg/m³ Band II (Elevated)
• East
  24-h PSI 131 Unhealthy · 1-h PM2.5 128 µg/m³ Band II (Elevated)
• West
  24-h PSI 152 Unhealthy · 1-h PM2.5 154 µg/m³ Band III (High)
• Central
  24-h PSI 156 Unhealthy · 1-h PM2.5 142 µg/m³ Band II (Elevated)

Bar length: 24-hour PSI against 300. Bands are NEA's: PSI 0-50 Good, 51-100 Moderate, 101-200 Unhealthy, 201-300 Very unhealthy, above 300 Hazardous; 1-hour PM2.5 0-55 Band I (Normal), 56-150 Band II (Elevated), 151-250 Band III (High), 251 and above Band IV (Very High).

Contains information from the PM2.5 and PSI datasets (National Environment Agency) accessed on Friday 9 October from data.gov.sg which is made available under the terms of the Singapore Open Data Licence version 1.0. Readings shown unaltered; this page is rebuilt once a day, so for the current hour see haze.gov.sg (National Environment Agency, live hourly readings and advisories).

Haze forecast for the next days

Forecast bars: daily mean PM2.5 from the Copernicus CAMS global model, as computed, against 150 µg/m³. Green is within the WHO 24-hour guideline (15 µg/m³), amber above it, red above the WHO interim target 1 (75 µg/m³). Model values, not monitor readings.

Allergy in Singapore

Singapore has no pollen season in the European sense: it is warm and humid all year, and the allergen that matters most is indoors. In a study of Singapore-born adults, 70 to 80 percent of those with measurable allergy antibodies reacted to house dust mites, mainly Blomia tropicalis and Dermatophagoides pteronyssinus, which thrive in the island's constant humidity. The outdoor threat is haze: smoke from peat and forest fires in Sumatra and Kalimantan, usually carried in between June and October by the southwest monsoon. On 21 June 2013 the 3-hour PSI reached 401, the highest ever recorded in Singapore.

Haze and dust mites add up: smoke particles irritate airways that a dust mite allergy has already inflamed, and asthma and allergic rhinitis flare in haze episodes. Read haze and dust mite allergy for what helps.

Malaysia

• Singapore
  PM2.5 100.6 µg/m³
• Johor Bahru
  PM2.5 100 µg/m³
• Kuala Lumpur
  PM2.5 74.9 µg/m³
• Kuching
  PM2.5 27.8 µg/m³
• Penang
  PM2.5 15.9 µg/m³

Today's daily mean PM2.5 by city, CAMS global model (Copernicus), as computed. Model values, not monitor readings.

Copernicus CAMS global forecast run of 8 October at 08:00 GMT+8, shown as computed. Official readings: haze.gov.sg (National Environment Agency, live hourly readings and advisories); for Malaysia, APIMS (Department of Environment Malaysia, live air pollutant index).