2015
DOI: 10.1016/j.chemgeo.2015.03.028
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Surface alteration mechanism and topochemistry of iron in tremolite asbestos: A step toward understanding the potential hazard of amphibole asbestos

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Cited by 27 publications
(37 citation statements)
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“…The curve fitted Fe2p 3/2 signal of sample n. 22 (Fig. 9) shows the presence of three components that, according to literature [18,33,34,35,36,37,38,39] (Fig. 10).…”
Section: Yellow and Light Green Glassessupporting
confidence: 58%
“…The curve fitted Fe2p 3/2 signal of sample n. 22 (Fig. 9) shows the presence of three components that, according to literature [18,33,34,35,36,37,38,39] (Fig. 10).…”
Section: Yellow and Light Green Glassessupporting
confidence: 58%
“…Amphiboles are more stable than serpentine asbestos in acidic solutions 15 and are less susceptible to chemical modifications following interaction with body fluids 16 . Nevertheless, previous researches showed that a few hour leaching of crocidolite and tremolite with an oxidative buffered medium caused a significant modification of the Fe 2+ /Fe 3+ ratio in the surface layers and the occurrence of newly-formed iron-rich phases 17 , 18 . These studies highlighted a different behaviour of crocidolite with respect to tremolite in both dissolution and iron speciation kinetics.…”
Section: Introductionmentioning
confidence: 96%
“…To understand how these complex surface dynamics modulate the overall surface reactivity of asbestos and determine the nature of the molecular interaction between asbestos fibres and biological molecules, this work investigates i) the surface reactivity of crocidolite and tremolite asbestos, measured as the ability to catalyse free radical release, and ii) how this parameter is affected by the surface alterations induced by an oxidative leaching. Crocidolite and tremolite fibres were incubated in a H 2 O 2 solution buffered at pH 7.4 for different time points, from 1 day to 1 month, under the same conditions used in the previous studies 17 , 18 . Far from mimicking the cellular environment, such conditions have been chosen to promote the dissolution dynamics of asbestos in a reasonable experimental time.…”
Section: Introductionmentioning
confidence: 99%
“…The fibrous form of the amphibole tremolite is considered to be of aggravated risk due to its raised bio-persistence compared to chrysotile, which exhibits enhanced bio-solubility in direct comparison. [20,21] While considering these facts, a potential decomposition of natural asbestos could be a significant side effect of the carbonation process. As stated by Ryu et al, the direct aqueous carbonation of tremolite fibers, forming reaction products as calcite, and the triggered morphological modification to a rhombohedral habitus may reduce or even eliminate the hazardous character of tremolite [22].…”
Section: Examination Of the Present Mineral Phasesmentioning
confidence: 99%