Figure 8. Comparison of modeled pollen deposition for two dates differing in weather conditions and pollen emission profiles, for two field sizes representing the 10th and 90th percentile sizes of creeping bentgrass seed production fields in Oregon (2.4 and 25 ha). For one of the days, simulation results from a hypothetical dust devil event are also shown. Values were derived from maps shown in Fig. 5 to 7, and represent the maximum distances for each of the indicated viable pollen deposition concentrations.