Published:
August 1, 1987
Originator:
Chesapeake Bay Program

When data from all tests were averaged, mass losses of total suspended solids, nitrogen and phosphoru from bare source areas were reduced by 72%, 17%, and 41% respectively, by 4.6 m (15 ft) wide filters. TSS, N, and P reductions by 9.2 m (30 ft) wide VFS were 86%, 51%, and 53% respectively. Percentage mass reductions for individual storm events deviated widelu from these averages, jowever, prompting the conclusion that VFS of the size studied should not be relied upon by themselves to reduce nuitrients transported in runoff from agricultural.