Results 1 to 10 of about 9,694 (251)

Activation of Peroxymonosulfate by Chrysotile to Degrade Dyes in Water: Performance Enhancement and Activation Mechanism [PDF]

open access: goldMinerals, 2021
An environmentally friendly activation method of peroxymonosulfate (PMS) provides a promising advanced oxidation processes for the degradation of organic wastewater. In this article, chrysotile, extracted from asbestos tailings, was found to be a kind of
Ying Dai   +6 more
openalex   +2 more sources

Chrysotile Asbestos [PDF]

open access: yesDefinitions, 2020
Requests for permission to reproduce or translate WHO publications – whether for sale or for non-commercial distribution– should be addressed to WHO Press through the WHO website (The designations employed and the presentation of the material in this ...
Maria Neira   +11 more
openaire   +2 more sources

Associated minerals in chrysotile deposits and their potential health risks [PDF]

open access: yesFrontiers in Public Health
Chrysotile samples from different deposits and the UICC-A and UICC-B standards have been analyzed by a procedure in which the chrysotile is removed by successive treatments in hydrochloric acid and sodium hydroxide, followed by transmission electron ...
Eric J. Chatfield
doaj   +2 more sources

Raman Micro-Spectroscopy Identifies Carbonaceous Particles Lying on the Surface of Crocidolite, Amosite, and Chrysotile Fibers [PDF]

open access: goldMinerals, 2018
Micro-Raman spectroscopy has been applied on UICC (Union for International Cancer Control’s) crocidolite and amosite from South Africa and on UICC chrysotile from Canada. Under Optical Microscope (OM), the surface of the fibers was often characterized by
Alessandro Croce   +2 more
openalex   +2 more sources

Updates on exposure estimation for the Québec cohort of chrysotile miners and millers: implications for risk assessment and threshold hypothesis [PDF]

open access: yesFrontiers in Public Health
The McGill University cohort of Québec chrysotile miners and millers (total of 11,379 members) has been a major determinant of risk assessment. The U. S.
Bruce W. Case   +2 more
doaj   +2 more sources

Chrysotile effects on human lung cell carcinoma in culture: 3-D reconstruction and DNA quantification by image analysis [PDF]

open access: goldBMC Cancer, 2008
Background Chrysotile is considered less harmful to human health than other types of asbestos fibers. Its clearance from the lung is faster and, in comparison to amphibole forms of asbestos, chrysotile asbestos fail to accumulate in the lung tissue due ...
Machado-Santelli Glaucia M   +1 more
doaj   +2 more sources

Comparison of various methodological approaches to model asbestos thresholds for mesothelioma [PDF]

open access: yesFrontiers in Public Health
BackgroundThere is evidence to support several modes of action (MoAs), and particularly non-genotoxic MoAs, for mesothelioma induced by asbestiform elongate mineral particles (EMPs).
Julie E. Goodman   +2 more
doaj   +2 more sources

Assessment of asbestos exposure in Kyrgyzstan through analysis of raw and processed materials, air samples and human lung tissue [PDF]

open access: yesScientific Reports
Asbestos still represents a major public health problem on a global scale. In Central Asia chrysotile is still mined and used, claiming that it is safer with respect to amphibole asbestos within certain concentrations.
Zhyldyz Kurzhunbaeva   +14 more
doaj   +2 more sources

Health risk of chrysotile revisited [PDF]

open access: yesCritical Reviews in Toxicology, 2013
This review provides a basis for substantiating both kinetically and pathologically the differences between chrysotile and amphibole asbestos. Chrysotile, which is rapidly attacked by the acid environment of the macrophage, falls apart in the lung into short fibers and particles, while the amphibole asbestos persist creating a response to the fibrous ...
Bernstein, David   +7 more
openaire   +3 more sources

Cytological Analysis of Upper Respiratory Tract Epithelial Cells in Chrysotile Asbestos Factory Workers [PDF]

open access: yesLife
Objective: This study aims to assess the impact of prolonged occupational exposure to chrysotile asbestos on the epithelial cells of the upper respiratory tract and the levels of surfactant protein D (SP-D) in female workers.
Yertay Otarov   +11 more
doaj   +2 more sources

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