Fig. 7 Breakthrough curves simulated using asymmetrical Lévy distributions. Values of parameters: 1, 
= 2, ß = 0; 2, = 1.3, ß = 0; 3, = 1.3, ß = 0.9; 4, = 1.3, ß = -0.9; 
= (Dfs|cos (
/2)|)1/
Fig. 7 Breakthrough curves simulated using asymmetrical Lévy distributions. Values of parameters: 1, = 2, ß = 0; 2, = 1.3, ß = 0; 3, = 1.3, ß = 0.9; 4, = 1.3, ß = -0.9; = (Dfs|cos (/2)|)1/