The study proved that amphibole asbestos exposures carry far greater mesothelioma risk than chrysotile exposure alone while mixed fiber exposure (chrysotile and amphibole asbestos) is also associated with the highest mesothelioma mortality among the workforces studied.
The study related to chrysotile-containing brake dust has provided two interim results including experimental design, aerosol exposure, lung burdens and BAL in rats and histopathological examination, confocal microscopy and collagen quantification of the lung and pleural cavity with life-time post-exposure observation.
This study aimed to characterize, for the first time in Spain, the type of asbestos fibres (AF) in the lungs of exposed and non-exposed populations.
(Hospital of Construction) – Asbestos has been known for centuries and is being used in hundreds of different types of products in industry as well as in daily life in countries around the world. With durability, insulation, sound proof and anti-friction, asbestos is now used in heat pipe, boiler cover, insulation, sound proof, roofing production etc.
[Environmental Health News] Mice exposed in the womb to a chemical used in PVC plastic, door and window frames, blinds, water pipes, and medical devices were more likely to suffer from prediabetes and obesity, according to a study released this week.
The last 20 years or so have seen enormous advances in our knowledge and understanding of asbestos-related disease. Unfortunately, governments and regulatory agencies have largely ignored the findings. Lawyers and pressure groups vigorously resist them.
Heavy industrial exposure to asbestos causes lung cancer and mesothelioma, but it remains unknown whether much lower environmental exposure to asbestos also causes these cancers.
The use in the past, and to a lesser extent today, of chrysotile asbestos in automobile brake systems causes health concerns among professional mechanics.
The differences between chrysotile asbestos, a serpentine mineral, and amphibole asbestos have been debated extensively. Many studies have shown that chrysotile is cleared from the lung more rapidly than amphibole.
Chrysotile asbestos, a serpentin mineral, has been shown to be notably different from amphibole asbestos such as amosite, crocidolite, and tremolite in that chrysotile once inhaled is rapidly removed from the lung while the amphiboles persist.
This research provides an important basis for substantiating both kinetically and pathologically the differences between chrysotile and amphiboles.
Of the major asbestos related diseases, mesothelioma is the most sensitive and specific indicator of the adverse health effects that have resulted from airborne exposures to asbestos fibres.
Data exist that show that chrysotile asbestos does not retain its mineral properties, or biological activity, at temperature far below the olivine transformation point. Temperatures hundreds of degrees below this point cause the mineral to lose structural water with accompanying crystal structure degradation.