| Titre | Platinum concentrations in urban road dust and soil, and in blood and urine in the United Kingdom |
| |
| Auteur | Farago, M E; Kavanagh, P; Blanks, R; Kelly, J; Kazantzis, G; Thornton, I; Simpson, P R; Cook, J M; Delves, H T; Hall, G E M |
| Source | The Analyst vol. 123, no. 3, 1998 p. 451-454, https://doi.org/10.1039/a705920e |
| Image |  |
| Année | 1998 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20190245 |
| Éditeur | Royal Society of Chemistry |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1039/a705920e |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Lat/Long OENS | -9.0000 2.0000 62.0000 50.0000 |
| Sujets | platine; palladium; substances polluantes; effets sur l'environnement; sols; géochimie du sol; géochimie du sédiment; analyse par spectromètre de masse; industrie minière; métaux précieux; Automobile;
Réseau routier; dépôts anthropiques; Risque pour la santé; Travailleur; Toxicologie; Substance toxique; Pollution en milieu de travail; effets cumulatifs; Transport; Économie et industrie; pédologie; Santé et sécurité; Nature et environnement;
Sciences et technologie; géologie de l'environnement; géochimie |
| Illustrations | tableaux |
| Résumé | (disponible en anglais seulement)
Increasing Pt concentrations from vehicle catalysts have been reported from a number of countries. Analysis of Pt and Pd in soils and road dusts taken from
areas of high and low traffic flows in SE England show concentrations of Pt in the range <0.30-40.1 ng/g and Pd in the range <2.1-57.9 ng/g. Higher concentrations of Pt are associated with high traffic densities. Samples taken from streets of lower
traffic flows were found to contain the lower concentrations of the ranges. Pilot studies of Pt concentrations in blood and urine using ICP-MS have been carried out. Platinum concentrations in whole blood were: precious metal workers, 780-2170, mean
1263 pmol/l (0.152-0.423, mean 0.246 µg/l); motorway maintenance workers, 645-810, mean 744 pmol/l (0.126-0.158, mean 0.145 µg l/); Imperial College staff, 590-713, mean 660 pmol l-1 (0.115-0.139, mean 0.129 µg l-1). Platinum concentrations in urine
in pmol Pt per mmol creatinine were: precious metal workers, 122-682, mean 273 [0.21-1.18, mean 0.47 µg/Pt (g creatinine)]; motorway maintenance workers, 13-78, mean 33.7 [0.022-0.135, mean 0.058 µg Pt/(g creatinine)]; Imperial College staff, 28-130,
mean 65.6 [0.048-0.224, mean 0.113 µg/Pt (g creatinine)]. Detection limits were 0.03 µg/l for both blood and urine. The possible health effects of increasing Pt in the environment are discussed. Platinum provides an excellent example of the
significance of speciation in metal toxicity. Platinum allergy is confined to a small group of charged compounds that contain reactive ligand systems, the most effective of which are chloride ligand systems. Metallic Pt is considered to be
biologically inert and non allergenic and since the emitted Pt is probably in the metallic or oxide form, the sensitising potential is probably very low. Platinum from road dusts, however, can be solubilised, and enter waters, sediments, soils and
the food chain. There is at present no evidence for any adverse health effects from Pt in the general environment, particularly allergic reactions. |
| GEOSCAN ID | 321428 |
|
|