Lead concentrations in soil and vegetation associated with highways of different traffic densities
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- Goldsmith, C.D., Scanlon, P.F. & Pirie, W.R. Bull. Environ. Contam. Toxicol. (1976) 16: 66. doi:10.1007/BF01753107
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Soil lead levels were found to decrease significantly in all traffic areas as distance from the highway increased. Areas of higher traffic volume had greater soil lead levels. Strong trends were shown in vegetation with areas of greater traffic density having greater lead levels than areas of lower traffic density. A decrease in lead levels was also noted in vegetation as distance from highway increased.