CONTEXT A detailed evaluation of the correlation and linearity of industrial hygiene retrospective exposure assessment (REA) for cumulative asbestos exposure with asbestos lung burden analysis (LBA) has not been previously performed, but both methods are utilized for case-control and cohort studies and other applications such as setting occupational exposure limits. OBJECTIVE (a) To correlate...

The time is appropriate for writing about asbestos use, with the 21st century in full sway and on the eve of the Rio+20 United Nations Conference on Sustainable Development, scheduled to discuss the planet’s sustainability. The success of sustainability hinges on political guidelines to ban and/or reduce harmful chemical substances still in use, including pesticides, benzene, and asbestos. Asbe...

Artificial Intelligence (AI) is providing the technology for large-scale, cost-effective and current asbestos-containing material (ACM) roofing detection. AI models can provide additional data to monitor, manage plan ACM in situ its safe removal disposal, compared with traditional approaches alone. Advances are being made algorithms imagery applied This study applies mask region-based convoluti...

In Italy, use and production of asbestos asbestos-containing materials (ACMs) were banned in 1992, however, the risk exposure to still exists, because most ACMs are located industrial public buildings. A total 111 Italian buildings with friable non-friable surveyed; 500 air samples collected areas where contamination might have occurred. Airborne fiber concentration calculated from was averaged...

Asbestos is a commercial term that represents several different silicate minerals which separate into long thin fibers. Asbestos has been used in numerous commercial applications due to its outstanding incombustible and insulating characteristics but causes fatal diseases such as lung cancer, asbestosis and malignant mesothelioma so strict regulations and controls for asbestos bearing rocks and...

To investigate the mechanisms of asbestos-induced carcinogenesis, expression of c-fos and c-jun protooncogenes was examined in rat pleural mesothelial cells and hamster tracheal epithelial cells after exposure to crocidolite or chrysotile asbestos. In contrast to phorbol 12-myristate 13-acetate, which induces rapid and transient increases in c-fos and c-jun mRNA, asbestos causes 2- to 5-fold in...

A telephone survey was conducted among a sample of managers (n=30) in Ireland who had previously commissioned an asbestos survey in their workplace buildings. The aims of the telephone survey were to examine the extent to which managers had completed Asbestos Safety Awareness (ASA) training, and to assess how such training might influence (i) their instinctive thoughts on asbestos, and (ii) the...

Asbestos is a generic term applied to a group of fibrous minerals found in nature. Because of their particular physical and chemical characteristics, these materials have been used by humans since antiquity. Around 456 BC, Herodotus wrote about the use of asbestos clothing in cremation ceremonies. Plutarch (46-120 BC) described the lamp wicks of the vestal virgins as vegetable fibre mixed with ...

PURPOSE There are different mineral classes of asbestos, including serpentines and amphiboles. Chrysotile is the main type of serpentine and by far the most frequently used type of asbestos (about 95% of world production and use). There has been continuing controversy over the capability of chrysotile asbestos to cause pleural and peritoneal mesothelioma. This review is to help clarify the issu...

Several observations, including studies from this laboratory, demonstrate that asbestos generates free radicals in the biological system that may play a role in the manifestation of asbestos-related cytotoxicity and carcinogenicity. It has also been demonstrated that iron associated with asbestos plays an important role in the asbestos-mediated generation of reactive oxygen species. Exposure to...