A natural deactivation of chrysotile asbestos occurs on serpentinite rocks where lichens selectively grow on the fibres and secrete metabolites, including oxalic acid, which, in the long term, turn the fibres into a non-toxic amorphous material.
Chrysotile asbestos is progressively converted into a non-fibrous amorphous material by the chelating action of lichen metabolites
FAVERO LONGO, Sergio Enrico;TURCI, Francesco;TOMATIS, Maura;CASTELLI, Daniele Carlo Cesare;BONFANTE, Paola;PIERVITTORI, Rosanna;FUBINI, Bice
2005-01-01
Abstract
A natural deactivation of chrysotile asbestos occurs on serpentinite rocks where lichens selectively grow on the fibres and secrete metabolites, including oxalic acid, which, in the long term, turn the fibres into a non-toxic amorphous material.
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