Lead concentrations of plants, soil, and air near highways
AuthorsT. J. Ganje
A. L. Page
Authors AffiliationsT. J. Ganje is staff Research Associate, Department of Soil Science and Agricultural Engineering, University of California, Riverside; A. L. Page is Associate Professor of Soil Science and Associate Chemist, Department of Soil Science and Agricultural Engineering, University of California, Riverside.
Hilgardia 26(4):7-9. DOI:10.3733/ca.v026n04p7. April 1972.
Lead found in and on crops in these highway proximity tests was caused principally by aerial deposition. Substantial amounts of Pb were removed from exposed plant tissues by distilled water washing. Amounts of Pb in and on crops were influenced by distance from the highway, extent of plant surface exposed, external plant characteristics, duration of plant exposure, motor vehicle traffic density, and direction of prevailing winds. In soils and suspended air particulates, concentration of Pb was influenced by distance from highways, and the direction of prevailing winds.
Also in this issue:Professionalism vs. scientism in agricultural education
Rice panicle blanking
Tree shaker thinning of French prunes
Correcting imbalances spider mite populations in Southern San Joaquin vineyards
A 10-year range study shows… brush conversion costs and returns in San Louis Obispo County
Experimental studies on predation: Predation and cyclamen-mite populations on strawberries in California