Singapore air quality worsens again, PSI just 10 points from ‘very unhealthy’

SINGAPORE, Oct 9 — The Republic's air quality has been worsening, with the 24-hour Pollutant Standards Index (PSI) in central Singapore reaching 191 by 4pm, just 10 points shy of the 'very unhealthy' range. The latest reading marks a new high for this year, surpassing the previous record of 181. All five regions currently have PSI readings in the unhealthy range, with western Singapore recording the highest at 183.

One-hour PM2.5 concentrations remain elevated across all regions, with the highest concentration of 148 detected in western Singapore. When one-hour PM2.5 readings are in the high band, healthy individuals should avoid strenuous outdoor activity for an hour, while vulnerable persons should avoid all outdoor activity. Preschools and schools have safety measures in place, including adjusting outdoor activities and using air purifiers.

The Ministry of Education will consider closing schools when the air quality forecast is hazardous, meaning a PSI above 300. Employers are advised to reduce prolonged or strenuous work for healthy employees and provide suitable protective equipment for vulnerable workers, particularly the elderly, pregnant women, and those with chronic heart and lung conditions.

The public is advised to check the latest one-hour PM2.5 concentration readings before engaging in outdoor activities.