D.C.’s streets have been swept for many decades.

While a nuisance to some D.C. drivers, the environmental benefits of clean roads are tough to ignore.

So, why isn’t the practice more widespread? And what exactly are the street sweepers sweeping?

Produced by Julie Depenbrock


  • Jacob Fenston Environment Reporter, WAMU 88.5; @JacobFenston
  • Neely Law Director, Center for Watershed Protection

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