Skip to main content
. 2020 Jul 15;27(32):40604–40617. doi: 10.1007/s11356-020-09848-0

Table 3.

Pearson’s product-moment correlation coefficient between physicochemical parameters and ecotoxicological values (toxic value TV10), together with the total quantity of applied deicers (VOLdeicers) and daily precipitation before sampling (Pdaily)

Site Feature pH EC TOC TV10 (FN) TV10 (FA) TV10 (BIO)
Deicing Place pH 1
EC 1
TOC 0.83* 0.94** 1
TV10 (FN) 0.85* 0.95*** 1
TV10 (FA) 0.85* 0.95*** 0.99*** 1
TV10 (BIO) 1
VOLdeicers
Pdaily
K2 pH 1
EC 1
TOC 0.87** 1
TV10 (FN) 0.98*** 0.84* 1
TV10 (FA) 0.90** 0.79* 1
TV10 (BIO) −0.98* 0.91* 1
VOLdeicers
Pdaily
K3 pH 1
EC 1
TOC 0.96*** 1
TV10 (FN) 0.77* 0.82* 1
TV10 (FA) 0.83* 0.87** 0.99*** 1
TV10 (BIO) 0.96** 1
VOLdeicers 0.90*
Pdaily
Lake pH 1
EC 1
TOC 1
TV10 (FN) 1
TV10 (FA) −0.85* 0.81* 1
TV10 (BIO) 1
VOLdeicers 0.77*
Pdaily 0.88** −0.86**
Stream EC 1
TOC −0.88** 1
TV10 (FN) 0.95*** 1
TV10 (FA) 1
TV10 (BIO) 0.99** 1
VOLdeicers
Pdaily −0.87** 0.96*** 0.90**

*−p ≤ 0.05, ***p ≤ 0.01, ***p ≤ 0.001, - not significant. EC electrical conductivity, TOC total organic carbon, TV10 toxic value (=1/EC10), FN frond number, FA frond area, BIO bioluminescence