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Resuspension - wind-tunnel experiments

Garland (1979, 1982, 1983) used the wind tunnel shown in Fig. 6.13 to measure resuspension of radioactive particles from grassland at Harwell. The fan and motor were mounted on a turntable, and the working section could be positioned as required. Radioactive particles were deposited on a strip of grass about 10 m long, and air was then drawn over it in the tunnel. Samplers measured the amount of resuspended activity in the air downwind of the strip. The horizontal flux of activity was deduced and expressed as the rate constant A of resuspension. [Pg.223]

During the first 100 h, A was approximately inversely proportional to the elapsed time, and the same was true in other experiments with different tracers. After 250 days, A was about 10 10 s-1, within the range of values found by Anspaugh etal. (1975) at the Nevada Test Site. [Pg.225]

Anspaugh, L.R., Shinn, J.H., Phelps, P.L. Kennedy, N.C. (1975) Re-suspension and re-distribution of plutonium in soils. Health Physics, 29, 571-82. [Pg.225]

Ferrandino, F.J. (1985) Rebound of pollen and spores during deposition on cylinders by inertial impaction. Atmospheric Environment, 19, 803-6. [Pg.225]


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