Physiological effects, wind reentrainment, and rainwash of lead aerosol particulate deposited on plant leaves.
Leaves of soybean (Glycine max L.) were experimentally fumigated with PbCl/sub 2/ aerosol particulates. No indication was found for either an effect of Pb on photosynthesis or for intraplant movement of topically applied Pb. Reentrainment wind speeds up to 6.7 m s/sup -1/ had no effect in removing aerosol particulate, whereas simulated rainfall removed up to 95% of the topically applied Pb. The mechanism of dissolution or suspension and subsequent runoff appeared to predominate over that of bombardment and resultant splashoff for rain water removal of PbCl/sub 2/ particulate from soybean leaves. 25 references, 2 figures, 2 tables.