MOM tells employers to adjust outdoor work during the day using 1-hour PM2.5 readings
MOM has issued new haze guidance asking employers to plan the next day’s outdoor work with the PSI forecast and to cut back outdoor work during the day as 1-hour PM2.5 readings rise. At readings of 251 µg/m³ and above, outdoor work should be stopped for vulnerable employees and minimised for everyone else.
Source: MOM — Additional Guidance for Employers on Use of 1-Hour PM2.5 Readings to Protect Outdoor Workers During Haze (20 Oct 2026)
