Measure Slope Slope_S.E. Slope_95%C.I. Intercept Intercept_S.E. Intercept_95%C.I. R2 U p-value (for_U) Total Flux 0.837 0.055 0.73-0.95 0.0782 0.043 -0.007-0.164 0.80 9.89 0.007 Areal Flux 0.67 0.044 0.58-0.75 0.840 0.105 0.63-1.05 0.79 44.5 <0.001 Concentration 0.46 0.066 0.33-0.59 0.044 0.032 -0.019-0.108 0.45 49.9 <0.001