Pollutant Removal Efficiencies from Street Sweeping for Total Solids Total Phosphorus and Total Nirogen. Source: Deriving Reliable Pollutant Removal Rates for Municipal Street Sweeping and Storm Drain Cleanout Programs in the Chesapeake Bay Basin. Center for Watershed Protection.
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Frequency Technology TS % TP % TN %
Monthly Mechanical 9 3 3
Regenerative Air/Vacuum 22 4 4
Weekly Mechanical 13 5 6
Regenerative Air/Vacuum 31 8 7