A paper by Schuck and Locke is discussed and evaluated. The author's conclusions are that the authors presented good evidence supporting their thesis that particulate lead from automobile exhaust contaminates crops growing in the vicinity of high traffic density roadways. Their contention that this contamination is entirely a surface coating is not well substantiated. Some of the results are inconclusive and others suggest a surface adsorption or the absorption of some lead into the plant parts studied. The possibility of the uptake of lead from soils is not eliminated. Soil lead levels in the vicinity of high traffic density highways could eventually become of concern. Although lead appears to be immobile in the soils, some work suggests that the lead does become available to some crops at certain high concentrations.