Fibrous Ferrierite from Northern Italy: Mineralogical Characterization, Surface Properties, and Assessment of Potential Toxicity

被引:7
作者
Mattioli, Michele [1 ]
Ballirano, Paolo [2 ]
Pacella, Alessandro [2 ]
Cangiotti, Michela [1 ]
Di Lorenzo, Fulvio [3 ]
Valentini, Laura [4 ]
Meli, Maria Assunta [4 ]
Roselli, Carla [4 ]
Fagiolino, Ivan [5 ]
Giordani, Matteo [1 ]
机构
[1] Univ Urbino Carlo Bo, Dept Pure & Appl Sci, I-61029 Urbino, Italy
[2] Sapienza Univ Rome, Dept Earth Sci, I-00185 Rome, Italy
[3] Paul Scherrer Inst, Lab Waste Management, Forschungsstr 111, CH-5232 Villigen, Switzerland
[4] Univ Urbino Carlo Bo, Dept Biomol Sci, I-61029 Urbino, Italy
[5] Ctr Studi Ambientali CSA Grp, Via Torrente 22, I-47923 Rimini, Italy
关键词
fibrous ferrierite; northern Italy; electron paramagnetic resonance (EPR); scanning electron microscopy (SEM); X-ray powder diffraction (XRPD); health hazard; ELECTRON-PARAMAGNETIC-RESONANCE; ASBESTIFORM ZEOLITE FIBERS; CRYSTAL-STRUCTURE; PREFERRED ORIENTATION; CARCINOGENIC ERIONITE; MESOTHELIOMA EPIDEMIC; HEALTH RELEVANCE; FLUORO-EDENITE; ASBESTOS; BIANCAVILLA;
D O I
10.3390/min12050626
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Nowadays, fibrous minerals pose as significant health hazards to humans, and exposure to these fibers can lead to the development of severe pulmonary diseases. This work investigated the morphology, crystal structure, chemistry, and surface activity of fibrous ferrierite recently found in northern Italy through an integrated approach using scanning electron microscopy-energy dispersive spectroscopy, electron microprobe, inductively coupled plasma atomic emission spectrometry, X-ray powder diffraction, and electron paramagnetic resonance. Our results show that a notable amount of ferrierite fibers are breathable (average length similar to 22 mu m, average diameter 0.9 mu m, diameter-length ratio >> 1:3) and able to reach the alveolar space (average D-ae value 2.5 mu m). The prevailing extra-framework cations are in the Mg > (Ca approximate to K) relationship, R is from 0.81 to 0.83, and the Si/Al ratio is high (4.2-4.8). The <T-O> bond distances suggest the occurrence of some degree of Si,A1 ordering, with Al showing a site-specific occupation preference T1 > T2 > T3 > T4. Ferrierite fibers show high amounts of adsorbed EPR probes, suggesting a high ability to adsorb and interact with related chemicals. According to these results, fibrous ferrierite can be considered a potential health hazard, and a precautionary approach should be applied when this material is handled. Future in vitro and in vivo tests are necessary to provide further experimental confirmation of the outcome of this work.
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页数:24
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