highly significantp < 0.05
A highly significant positive linear correlation was identified between ADDF and Pb-DDF[Pb-DDF (mg m −2 d −1 ) = −0.014 + 0.795 × ADDF (g m −2 d −1 ); R 2 = 0.95, N = 148, p < 0.05] (Fig. 3 ).
A highly significant positive linear correlation was identified between ADDF and Pb-DDF[Pb-DDF (mg m −2 d −1 ) = −0.014 + 0.795 × ADDF (g m −2 d −1 ); R 2 = 0.95, N = 148, p < 0.05] (Fig. 3 ).
A clear trend to decreases from February to September was evident.