As per the IARC, a carcinogen is a compound (e.g., chemical) which results and enhances the danger of cancer (Cahan et al., 1948). The threat to humans of these carcinogenic chemicals based on the degree of evi
. Polarizing microscopy is not useful for the detection of asbestos in histologic sections. A minimum of two asbestos bodies per cm2, in conjunction with an appropriate pattern of alveolar septal fibrosis, in well-inflated lung tissue away fromlung carcinomaor mass lesions, is required for a ...
THE majority of the asbestos deposits at present being developed are of chrysotile, which emerges as fine, white fibres when the asbestos rock is separated or “opened” at the mine1. Amphibole asbestos usually has a harsher, more needle-like cleavage and in some applications where coarse stra...
Despite the obvious deleterious health effects of asbestos, alarmingly it is still being extracted and used in manufacturing in large quantities, primarily in developing countries, and this shows no signs of abating (McCulloch and Tweedale 2008). The health and corporate issues arising from the ...
Annually, a total of four million tons of asbestos ore is extracted, which produces 250,000 tons of asbestos as a commercial commodity. The remaining ore, which amounts to the majority, is discarded as trash and presents a significant environmental risk to the surrounding areas. Industrial ...
Pulmonary function results The most important lung parameters from spirometry, body plethysmography and CO diffusion measurement are listed in Table 2. For VC, TLC, FVC, DLCO and DLCO/ VA, the overall collective shows a normal distribution. In the total collective, there is a mean VC...
Chrysotile asbestos is a toxic and carcinogenic mineral that has been used in a variety of industrial and consumer applications. Much of the fiber- and cement-containing asbestos waste has ended up in terrestrial environments. Chrysotile weathering in soils and the potential for natural attenuation ...
If realized, it would protect the natural environment from pollution, minimise the depletion of non-renewable resources, and protect human health from hazards [1,2,4]. In recent years, a number of recycling routes of thermally treated CAS have been investigated, providing satisfactory results (...
In addition to asbestos-containing materials (ACMs) that, if not properly handled, release fibers into the atmosphere, the natural occurrence of asbestos (NOA) represents an important source of fibers dispersion. The global territory is interested in the widespread presence of NOA outcrops (e.g....