Figure S1.

Effect of phenanthrene (Phe) on Ba²⁺ currents (I_BaL) of L-type Ca²⁺ channels. (A) Representative current traces of I_BaL elicited by depolarization to −10 mV in the absence (control; black) and presence of 10 µM phenanthrene (orange). (B) Bar graph showing mean ± SEM percentage change in peak currents (I) and total charge (Q) of Ca²⁺ (n = 5–10; N = 2) and Ba²⁺ (n = 5; N = 3) in the absence and presence of 10 µM phenanthrene (*, P < 0.05; Mann–Whitney Test). (C and D) Representative traces of cumulative charge transfer as integral of time for calcium currents (C) and barium currents (D) in the absence and presence of 10 µM phenanthrene.