https://www.airgradient.com/map?zoom=12&long=103.85&lat=1.34&meas=ug_m3&wind_layer=false&fires_layer=false&map_theme=light&org=ag&embedded=false&dataSources=AirGradient
Looks like improve slightly from the rain.
BTW don't look at single stations. Check the trend across a few.