The dispersion coefficients X and Y for a continuous source are given in Figures 5-10 and
5-11, with the corresponding correlations given in Table 5-2. Values for a, are not provided because it is reasonable to assume that X = Y. The dispersion coefficients X and Y for a puff
release are given in Figure 5-12 and the equations are provided in Table 5-3. The puff dispersion
coefficients are based on limited data (shown in Table 5-2) and should not be considered
precise.