I would have thought living near the airport would be the cheapest square footage on that map.
In Toronto they can barely give away apartments located near Pearson Airport due to the incessant noise (and some crime, probably associated with the low purchase price of the apartments).
The prices are ~50% of what they are everywhere else in the city.
The composition of the Pyrex glass sold in North America did change from borosilicate glass to soda-lime glass when the brand changed hands, yes. But the important thing about "glass not breaking at high temperatures" has much more to do with the annealing process than it does the type of glass.
In Toronto they can barely give away apartments located near Pearson Airport due to the incessant noise (and some crime, probably associated with the low purchase price of the apartments).
The prices are ~50% of what they are everywhere else in the city.