Will youth training or matches be cancelled because of haze?
That is the organiser's call. Many leagues use a 1-hour PM2.5 above 110 µg/m³ as the cut-off, and some check the 1-hour reading rather than the 24-hour PSI. Always wait for the organiser's final message.
Singapore now
Check your area →45 µg/m³ · Normal (1-hour PM2.5, model estimate, not official)
Why leagues use the 1-hour reading
The 24-hour PSI changes slowly and can overstate or understate what the air is like right now, so sports organisers prefer the hourly figure.
What you can do
Set the same cut-off in Haze Guide (default 110) to see how close the reading is, and subscribe to alerts so you hear when it crosses the line.
Related guides
Related questions
Sources
- NEA 1-hour PM2.5 readings (Singapore) — National Environment Agency (NEA), Singapore · official site · API / docs
- NEA 24-hour PSI (Singapore) — National Environment Agency (NEA), Singapore · official site · API / docs