superfund in a salt marsh?
peat bog full of hydrogen sulfide?
just a generally Viscerally Smelly swamp?
office building with 4000ppm CO2 built on swampland?
Disney World?
... Disney... Land?
Is the shielding pool of a research nuclear reactor a "poison swamp"? does it require vegetation at all?
is Lake Merritt a poison swamp, since if you fall in you get, at best, contact dermatitis?
