Recherches préliminaires sur la mise en place d'une biosurveillance végétale de la pollution atmosphérique en zone industrielle complexe: applications du ray—grass dans la zone industrialo—portuaire de Dunkerque
2011
Rzepka-Cuny, Marie-Amélie | Cuny, Damien
Heavy metals are particularly present in industrial harbour areas, mainly under particle form. Three possible applications of rye—grass in heavy metals biomonitoring were studied in this work: bioaccumulation, observation of particle deposition on leaves and genotoxicity. Only lead and cadmium were detected on leaves, with higher concentrations in industrial site. This results show the application limits of French norm NF X43-901 when atmospheric concentrations of heavy metals are relatively low during the survey. However, size, composition, and quantity of particles microscopically observed on foliar surfaces (with SEM) change according to the sites. Moreover, comet assay, that was performed for the first time on rye—grass leaves, show genotoxic effects more important in road site.
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