. 2022 Aug 2;2(6):482–509. doi: 10.1021/acsenvironau.2c00024

Table 4. Comparison of QSAR Half-Lives with the Longest Half-Lives Reported from Experimental Simulation Tests Obtained from the eChemPortal Database.

	avg Δlog(t_1/2) ± SD
comparison of simulated vs QSAR half-lives: Δlog(t_1/2) = log(t_{1/2 experimental, simulated)}- log (t_1/2_predicted)	t_1/2-QSAR	OPERA
experimental maximum: t_1/2 fresh water	–0.5 ± 1.3 n = 60)	0.5 ± 1.3 (n = 49)
experimental maximum: t_1/2 in soil	–0.5 ± 1.4 (n = 221)	0.4 ± 1.5 (n = 202)
experimental maximum: t_1/2 in sediment	–0.5 ± 1.2 (n = 80)	0.6 ± 1.1 (n = 71)