There are few smells that I remember as clearly as a paper mill. The Kodak plant in Tennesee, where I asked the locals what the smell was and they all said "What smell?" North Carolina chicken farms, burning bodies, and death.
I can still remember the stench of the papermill in St. Joe, Florida back in my Airforce days, late 1970s. Driving by it between my duty station at Tyndall AFB near Panama City and home in Tallahassee, it was enough to gag a maggot. When the wind was wrong, we could smell it on base, many miles away. They closed it in the 1980s. I don't miss it. But on the otherhand, it meant local jobs and I like the idea of our being industrially independent. A two-edged sword.