It’s simple....what’s in your house? What chemicals, cleaners, paints, etc? That is what burned. Gov’t doesn’t need to tell me that there is also people in that smoke, as well as washing down the streets in the rain.
That's troubling when you put it that way. Think of all the CFL and other florescent lightbulbs that contain mercury. All the cleaners that contain ammonia, sulphuric acid (drain cleaners), and other toxics. Insulation that has fiberglass, PCBs, formaldehyde and other bad chemicals. Oil lubricants, degreasers, paint removers, etc. Shingles and tarpaper on roofs. And automobiles which are full of many toxics including lead batteries. Yep, a real toxic brew that burned.
Plus some warehouse’s full of bad stuff.