Use and abuse of Pb-isotope fingerprinting technique and GIS mapping data to assess lead in environmental studies |
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Authors: | N S Duzgoren-Aydin A L Weiss |
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Institution: | (1) National Center for Natural Products Research, The University of Mississippi, Mississippi, MS 38677, USA;(2) Pharmtox Inc., 263 Center Avenue, Westwood, NJ 07675, USA |
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Abstract: | The danger to health, especially of young children, from lead-bearing particulates in the surface environment is still a valid
concern. Given the multifaceted uses of lead today as well as historically, the sources of lead must be investigated to distinguish
the etiology of lead contamination on the environment. The lead isotope finger printing technique based on isotopic ratio
analyses (IRA) is one of the methods used commonly for provenancing lead sources in environmental studies throughout the world.
This technique, however, has some inherited shortcomings. Therefore, caution must be used in the interpretation of the results,
as this technique can lead to overestimations as well as underestimations of the true source etiology/apportionment of lead
in specific environments. This paper illustrates this with some examples. Data on geographical information systems (GIS) mapping
in urban regions are also presented in this paper. |
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Keywords: | China GIS mapping Lead etiology Lead isotope composition Urban geochemistry USA |
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