An #sghaze info cheatsheet/linkdump

Context: Singapore is in the middle of the worst smog and pollution it's seen since ... recorded history, I'll warrant. The latest record-high PSI was 401 yesterday (I get the heebie-jeebies just thinking about it) and the PM2.5 levels are unsettling too.

(Until two days ago, I did not know what PM10 or PM2.5 referred to. Until yesterday, I never had to wear an N95 mask when going about ordinary errands outside the home.)

Anyway, I'm dumping a bunch of useful links here, because the government websites are quite a morass to wade through, and I want to keep everything in a place where I can find them:
And in the silver lining department:
Feel free to add other useful links in the comments.