Table 2.

Two-way ANOVA results for ecotoxicological (EC₁₀) and physicochemical values from samples collected on seven occasions (Nov-May) and at five different sites (Deicing Place, K2, K3, lake, stream) during winter 2012–2013 at a regional airport

	Site	Period
EC10 FN [mL L−1]	**	–
EC10 FA [mL L−1]	**	–
EC10 BIO [mL L−1]	*	–
pH	**	–
EC [μS cm−1]	–	**
TOC [mg L−1]	***	**

*−p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001,- not significant. FN frond number of L. gibba, FA frond area of L. gibba, BIO bioluminescence of A. fischeri, EC electrical conductivity, TOC total organic carbon