Multi-decadal trends and drivers of urban stream water quality in Arlington, Virginia, using the National Sanitation Foundation Water Quality Index.

Specifically, a significant trend was observed during the pre‐1997 period ( τ = 0.1149, p = 0.0271), whereas the post‐1997 period showed no statistically significant trend ( τ = 0.0605, p = 0.1432), indicating relative stabilization of water quality conditions after the late 1990s.

also in 6,248 other papers