Figure 2

Specification of LRTP substances as presented in Figure 1 (a) vPvB, (b) vPB, (c) vP¬B or (d) P¬B. Maximal four sets of compounds are combined which are assumed to show LRTP derived from the half-life criterion (t_1/2(air) > 2 days, dark blue circle), from simulations with the multimedia model ELPOS (green circle), from the chemical structure of known Arctic contaminants (grey circle) as given by Brown and Wania [8], and from the advanced half-life approach including a log K_AW condition [9] (t_1/2(air) > 2 days and log K_AW ≥ 5 and ≤1, light blue circle; (c) only).