Paris, France is making good on its promise to reopen long polluted waterways to bathers.
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Up to three hundred people at any time can use the lifeguard-protected pools, although the pools only have locker space for 80. Located in a part of Paris already popular as a place to stroll in fine weather, the new bathing spot is likely to prove a major hit in an already hotter-than-average summer. Early reports suggest that the water is indeed delightful, though a small residuum of green algae does make a post-bathe shower a good idea.
How did Paris pull this off? The city’s been working on cleaning up the waters here for decades. Paris’s canals here were once unsurprisingly filthy, running as they do through a former industrial area once packed with cargo barges and polluted by sewage. Since the 1980s, however, regulations managing industrial run-off have tightened substantially, while Paris has invested heavily in wastewater treatment and in preventing sewage from being discharged into the canal during periods of high water. Two years ago, following a concerted clean-up, bacteria levels dropped below safe levels, and rogue bathers have been jumping in the water here for a while. Meanwhile, the Canal Saint Martin, which runs downstream from the basin down to the Seine, was entirely drained and cleaned in 2016, a process that sent a powerful visual message to Parisians that the area’s historic filth was being swept away.