Just think of everyone that builds PVC fencing or other PVC products. They are the most exposed out of everyone, year-round. I live in a city that has a growing manufacturing sector, and I personally know multiple people with breathing problems at the very least

It is probably too late to benefit from a HEPA filter and/or carbon filter, although maybe there is something left in the air that might benefit from 1 or both of these. But based on that link, and given that this happened on the 3rd, I am more worried about what it would take to make the water supply safe for the next month.

Thanks for this. To me it looks like the best analysis so far from the point of view of why the crisis was handled the way is was.