Impact on the environment from steel bridge paint deterioration using lead isotopic tracing, paint compositions and soil deconstruction

The Science of the Total Environment
B L GulsonGary O'Connor

Abstract

Deterioration and repair of lead paint on steel structures can result in contamination of the ambient environment but other sources of lead such as from past use of leaded paint and gasoline and industrial activities can also contribute to the contamination. Using a combination of high precision lead isotopic tracing, detailed paint examination, including with scanning electron microscopy, and soil deconstruction we have compared paint on a steel bridge and bulk soil and lead-rich particles separated from soil. The majority of Pb found in the paint derives from Australian sources but some also has a probable US origin. The isotopic data for the bulk soils and selected particles lie on a mixing line with end members the geologically ancient Broken Hill lead and possible European lead which is suggested to be derived from old lead paint and industrial activities. Data for gasoline-derived particulates lie on this array and probably contribute to soil Pb. Although paint from the bridge can be a source of lead in the soils, isotopic tracing, paint morphology and mineralogical identification indicate that other sources, including from paint, gasoline and industrial activities, are contributing factors to the lead burden. Even though...Continue Reading

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Aug 22, 2015·International Journal of Environmental Research and Public Health·Sanas JavadianThomas E Novotny

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Citations

Apr 23, 2016·The Science of the Total Environment·Collin A Eagles-SmithColleen Flanagan Pritz
Sep 14, 2016·The Science of the Total Environment·Allison C LuengenBen K Greenfield
Apr 12, 2018·International Journal of Environmental Research and Public Health·Brian GulsonMichael Rabinowitz
Jun 23, 2019·Chemosphere·Meghanne TigheMarya Lieberman

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