Hi people,
I hacked up a data visualization on the haze that hit Singapore in recent weeks. I know, a bit late to the party, but most importantly, blue skies are back! Never thought I would be so glad to see blue skies in sunny Singapore.
I observed an interesting pattern. Under haze conditions, PM2.5 is consistently higher than PSI but the reverse is true when clean air returns. If PM2.5 is normally lower than PSI, would PM2.5 be a more stringent "litmus test" of haze pollutants? It seems to me that PM2.5 is not getting its fair share of media attention especially when PM2.5 particles are way more harmful than PM10.
The haze was dissipating when PM2.5 finally went below PSI from 24 June 4pm onwards. I think that was an important turning point.
Would love to hear your comments or feedback. Thanks!
Rufeng