Hmm. The smell of paper plants change depending on the paper they make. Sometimes the now-decommissioned plant in my hometown smelled like chocolate chip cookies. So weird.
Broccoli farms I’ve never smelled, but the Ann Arbor, MI shit plant smelled like rotten broccoli quite often before they rebuilt the whole thing. (Never noticed much smell from the broccoli I’ve grown in the garden, for what it’s worth.)