The filthiest waterway in Brooklyn isn’t the Gowanus Canal — it is Newtown Creek! So says the only man who could possibly know for sure: Christopher Swain, the one person in history to successfully swim both toxin-filled inlets.

http://www.brooklynpaper.com/stories/39/1/dtg-newtown-creek-swim-complete-2015-01-01-bk.html

https://www.dnainfo.com/new-york/20151223/greenpoint/scents-of-human-waste-cinnamon-toast-assault-newtown-creek-swimmer