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Review of pollutant lead decline in urban air and human blood: A case study from northwestern Europe
- Source :
- Comptes Rendus Géoscience, Comptes Rendus Géoscience, Elsevier Masson, 2015, 347 (5-6), pp.247-256. ⟨10.1016/j.crte.2015.02.004⟩, Comptes Rendus Géoscience, Elsevier, 2015, 347 (5-6), pp.247-256. ⟨10.1016/j.crte.2015.02.004⟩, Comptes Rendus Géoscience, 2015, 347 (5-6), pp.247-256. ⟨10.1016/j.crte.2015.02.004⟩
- Publication Year :
- 2015
- Publisher :
- HAL CCSD, 2015.
-
Abstract
- International audience; A review of the transient decline of pollutant lead in the air (PbA) and the blood (PbB) has been conducted in order to assess the relationship between these environmental reservoirs. We have demonstrated that PbA decreased 20 to 100 times more than PbB for the past 30 years, suggesting another significant intake besides airborne lead to explain lead accumulated in humans. This trend has also been observed in two blood surveys we have completed in 1976-1978 and 2008-2009 in northern France and Belgium. Nowadays, the mean PbB (1.5-3.5 mu g/dL) remains at least 100 times higher than the estimated non contaminated PbB. Lead isotope imprints in blood could help decipher specific contamination cases, and were coherent with the decline of PbA, but could not help discriminate the source of blood lead owing to the lack of source imprints, especially from dietary intakes. Correlations between recent PbB, isotopic imprints and the age of the subjects suggested that lead released from bones has become a significant source of lead in blood. The significant cause for human exposure to lead may have shifted from direct pollutant lead input accumulated in exogenous reservoirs (air and diet) to endogenous lead release from bone tissues consequential to metabolic calcium homeostasis and bone turnover. (C) 2015 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
- Subjects :
- 010504 meteorology & atmospheric sciences
[SDV]Life Sciences [q-bio]
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
010501 environmental sciences
Biology
01 natural sciences
Lead, Aerosols, Blood, Lead isotopes, Bone tissues
[SHS]Humanities and Social Sciences
Lead (geology)
Mining engineering
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry
Environmental health
ComputingMilieux_MISCELLANEOUS
0105 earth and related environmental sciences
Pollutant
Aerosols
Global and Planetary Change
Human blood
Lead isotopes
Blood
Lead
13. Climate action
Human exposure
[SDU]Sciences of the Universe [physics]
[SDE]Environmental Sciences
General Earth and Planetary Sciences
[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie
Bone tissues
Subjects
Details
- Language :
- English
- ISSN :
- 16310713
- Database :
- OpenAIRE
- Journal :
- Comptes Rendus Géoscience, Comptes Rendus Géoscience, Elsevier Masson, 2015, 347 (5-6), pp.247-256. ⟨10.1016/j.crte.2015.02.004⟩, Comptes Rendus Géoscience, Elsevier, 2015, 347 (5-6), pp.247-256. ⟨10.1016/j.crte.2015.02.004⟩, Comptes Rendus Géoscience, 2015, 347 (5-6), pp.247-256. ⟨10.1016/j.crte.2015.02.004⟩
- Accession number :
- edsair.doi.dedup.....60835d7b588469feefe5b28f4cd6ca45