title: Contamination of Vegetation by Tetraethyl Lead.
abstract: Tetraethyl lead is a normal constituent of vegetation growing along our highways. Washed grass near Denver contained 3000 ppm (in ash) near major intersections and > 50 ppm for 500 feet downwind. Vegetables grown within 25 feet of a road in upstate New York and western Maryland averaged 80 to 115 ppm.
authors.forename: H L
authors.initials: HL
authors.lastname: Cannon
authors.forename: J M
authors.initials: JM
authors.lastname: Bowles