Lability of Pb in soil: effects of soil properties and contaminant source
Environmental Context: There is growing concern that lead (Pb) in the environment may cause adverse health effects in human populations. We investigated the combined use of isotopic abundance and isotopic dilution to show how the origins of soil Pb and soil characteristics affect lability. Soil pH...
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| Format: | Article |
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CSIRO Publishing
2014
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| Online Access: | https://eprints.nottingham.ac.uk/28777/ |
| _version_ | 1848793639819411456 |
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| author | Mao, Lingchen Bailey, Elizabeth H. Chester, Jonathan Dean, Joseph Ander, E. Louise Chenery, Simon R. Young, Scott D. |
| author_facet | Mao, Lingchen Bailey, Elizabeth H. Chester, Jonathan Dean, Joseph Ander, E. Louise Chenery, Simon R. Young, Scott D. |
| author_sort | Mao, Lingchen |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Environmental Context: There is growing concern that lead (Pb) in the environment may cause adverse health effects in human populations. We investigated the combined use of isotopic abundance and isotopic dilution to show how the origins of soil Pb and soil characteristics affect lability. Soil pH and soil Pb content are the dominant controls on Pb lability; the lability of recent petrol-derived Pb is similar to that of other sources in urban soils but greater than geogenic Pb in rural roadside topsoils.
Lability of lead (Pb) in soils is influenced by both soil properties and source(s) of contamination. We investigated factors controlling Pb lability in soils from (i) land adjacent to a major rural road, (ii) a sewage processing farm and (iii) an archive of the geochemical survey of London. We measured isotopically exchangeable Pb (E-values; PbE), phase fractionation of Pb by a sequential extraction procedure (SEP) and inferred source apportionment from measured Pb isotopic ratios. Isotopic ratios (206Pb/207Pb and 208Pb/207Pb) of total soil Pb fell on a mixing line between those of petrol and UK coal or Pb ore. The main determinant of the isotopically exchangeable Pb fraction (%E-value) was soil pH: %E-values decreased with increasing pH. In rural roadside topsoils and there was also evidence that, petrol-derived Pb remained more labile (35%) than Pb from soil parent material (27%). However, in biosolid-amended and London soils %E-values were low (c. 25%), covered a restricted range, and showed no clear evidence of source-dependent lability. |
| first_indexed | 2025-11-14T19:03:30Z |
| format | Article |
| id | nottingham-28777 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:03:30Z |
| publishDate | 2014 |
| publisher | CSIRO Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-287772020-05-04T20:12:34Z https://eprints.nottingham.ac.uk/28777/ Lability of Pb in soil: effects of soil properties and contaminant source Mao, Lingchen Bailey, Elizabeth H. Chester, Jonathan Dean, Joseph Ander, E. Louise Chenery, Simon R. Young, Scott D. Environmental Context: There is growing concern that lead (Pb) in the environment may cause adverse health effects in human populations. We investigated the combined use of isotopic abundance and isotopic dilution to show how the origins of soil Pb and soil characteristics affect lability. Soil pH and soil Pb content are the dominant controls on Pb lability; the lability of recent petrol-derived Pb is similar to that of other sources in urban soils but greater than geogenic Pb in rural roadside topsoils. Lability of lead (Pb) in soils is influenced by both soil properties and source(s) of contamination. We investigated factors controlling Pb lability in soils from (i) land adjacent to a major rural road, (ii) a sewage processing farm and (iii) an archive of the geochemical survey of London. We measured isotopically exchangeable Pb (E-values; PbE), phase fractionation of Pb by a sequential extraction procedure (SEP) and inferred source apportionment from measured Pb isotopic ratios. Isotopic ratios (206Pb/207Pb and 208Pb/207Pb) of total soil Pb fell on a mixing line between those of petrol and UK coal or Pb ore. The main determinant of the isotopically exchangeable Pb fraction (%E-value) was soil pH: %E-values decreased with increasing pH. In rural roadside topsoils and there was also evidence that, petrol-derived Pb remained more labile (35%) than Pb from soil parent material (27%). However, in biosolid-amended and London soils %E-values were low (c. 25%), covered a restricted range, and showed no clear evidence of source-dependent lability. CSIRO Publishing 2014-12 Article PeerReviewed Mao, Lingchen, Bailey, Elizabeth H., Chester, Jonathan, Dean, Joseph, Ander, E. Louise, Chenery, Simon R. and Young, Scott D. (2014) Lability of Pb in soil: effects of soil properties and contaminant source. Environmental Chemistry, 11 (6). pp. 690-701. ISSN 1448-2517 http://www.publish.csiro.au/?paper=EN14100 doi:10.1071/EN14100 doi:10.1071/EN14100 |
| spellingShingle | Mao, Lingchen Bailey, Elizabeth H. Chester, Jonathan Dean, Joseph Ander, E. Louise Chenery, Simon R. Young, Scott D. Lability of Pb in soil: effects of soil properties and contaminant source |
| title | Lability of Pb in soil: effects of soil properties and contaminant source |
| title_full | Lability of Pb in soil: effects of soil properties and contaminant source |
| title_fullStr | Lability of Pb in soil: effects of soil properties and contaminant source |
| title_full_unstemmed | Lability of Pb in soil: effects of soil properties and contaminant source |
| title_short | Lability of Pb in soil: effects of soil properties and contaminant source |
| title_sort | lability of pb in soil: effects of soil properties and contaminant source |
| url | https://eprints.nottingham.ac.uk/28777/ https://eprints.nottingham.ac.uk/28777/ https://eprints.nottingham.ac.uk/28777/ |