Yes, and here's why (PS I'm getting technical here so listen carefully!):
You're definition for apocalypse is something that involves extreme damage or destruction, right? Well, that means air-pocalyspe would mean air that causes extreme damage or destruction, correct? Air pollution absolutely DESTROYS our air, so I believe this term is fitting for describing air pollution. I also think that this is a bit of an opinion question, so you can use this as a guide if you don't want to use this direct answer!
