FIGURE 4-2 Estimated environmental compartment concentrations of and human exposures to T4CDD by various pathways in Southern Ontario. Emission and advection rates are provided at the top of the figure. Transfer rates are indicated along the arrows. Source: Paterson et al. 1990. Reprinted with permission from Emissions from Combustion Processes: Origin, Measurement, Control; copyright 1990, CRC Press, Boca Raton, Fla.

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