Some preschools are monitoring air quality readings as often as every two hours, while others have prepared indoor activities and air purifiers as Singapore faces a heightened risk of severe haze in the second half of the year.

SINGAPORE, Aug 10 — Singapore’s Haze Task Force is ready to activate its haze action plans should air quality deteriorate to unhealthy levels, the National Environment Agency...

Some preschools are monitoring air quality readings as often as every two hours, while others have prepared indoor activities and air purifiers as Singapore faces a heightened…