At a party, just a few years ago, I met a gentleman, retired from the international coffee business. Of course, I had to ask him about the now long gone aroma of coffee roasting that everyone enjoyed as they came to SF, by ferry or bridge.
He said that, by government decree (don't ask me which agency) that wonderful outpouring was deemed a form of pollution. So, I guess, the facility had to move elsewhere. What a shame.
Two well-remembered fragrances (in my book, anyway): the roasting coffee, at the east edge of SF, and the eucalyptus trees, dripping in the foggy drizzle, out west.