All those new places definitely qualify as Roadfood!
My recollection of Nitrous Oxide was its use as laughing gas with Dentists.
Did a little homework. Didn’t realize how harmful it is! A Jeckell & Hyde thing! Nitrous oxide is also a major and . Considered over a 100 year period, it has 298 times more impact per unit weight than .
Nice job on the homework. That is why we are out measuring it.