Is it safe to exercise outdoors in haze?
It depends on the 1-hour PM2.5. Up to 55 µg/m³ normal activities are fine; at 56–150 reduce strenuous exercise; at 151–250 avoid it; above 250 minimise all outdoor activity (NEA). Vulnerable people should avoid strenuous activity from 56.
Singapore now · as at 10:00 SGT
Check your area →100 µg/m³ · Elevated (1-hour PM2.5, NEA official, worst region)
Check before you go
Use the reading for your own region, not the island-wide worst value. The reading updates hourly, so check again if you will be out for a long time.
Lighter alternatives
Indoor exercise, a slower pace, or a shorter session all reduce how much smoke you breathe in.
Related guides
Related questions
Sources
- NEA 1-hour PM2.5 readings (Singapore) — National Environment Agency (NEA), Singapore · official site · API / docs
- haze.gov.sg regional haze situation and outlook — NEA, drawing on the ASEAN Specialised Meteorological Centre · official site