It’s far worse than that. This wasn’t a controlled combustion, it was a pit dumpster fire. Also, it was mixed with other chemicals . What your get is a literal shit ton of random chemical reactions partially combusting In a way too to rich environment. Hence the black cloud of smoke bigger than some small countries. I’m no chemical engineer, but I’ve seen the chaos from random chemical spills create all sorts of nasty shit no one could predict and none of them could say exactly what was being produced. I don’t care about CO2, acid rain is short lived and then soil neutralized, but many of the more exotic chemicals created and catalyysed by heat and fire will live on in the air and soil for a long time. That’s the toxicity, that’s the cancer, that’s the hormone disrupting and odd deaths and health issues that will manifest and persist for years to come. My only answer is to not be there when it came through, and then continue not being under that cloud, and don’t eat produce or animals from that area.