OBJECTIVE To determine whether there was excessive risk of cancer among workers exposed to chrysotile fiber alone by applying a meta-analysis technique. METHODS All data meeting the criteria of cohort studies on cancer mortality among workers exposed only to chrysotile were incorporated into meta-analysis. Pooled standardized mortality ratios (SMRs) and their corresponding 95% confidence inte...

Asbestos: Facts and Fiction I appreciate the opportunity to address the omissions, inaccuracies, and innuendos in the position paper by David P. Rall, "Media and Science: Harmless Dioxin, Benign CFCs, and Good Asbestos" (EHP 102:10). Unfortunately, Rail not only misinterprets the conclusions of our 1990 Science article by Mossman et al. (1) but he fails to mention the database, scientific panel...

© 2001 Canadian Medical Association or its licensors In this issue (page 489), Joseph LaDou and colleagues on behalf of the Collegium Ramazzini call for an immediate and total ban on “asbestos” products because the current health risks associated with the use of “asbestos” are not acceptable, “controlled use” is not possible and “safer” substitutes are readily available. The logic is indisputab...

© 2001 Canadian Medical Association or its licensors In this issue (page 489), Joseph LaDou and colleagues on behalf of the Collegium Ramazzini call for an immediate and total ban on “asbestos” products because the current health risks associated with the use of “asbestos” are not acceptable, “controlled use” is not possible and “safer” substitutes are readily available. The logic is indisputab...

The rheological properties of oxidized bitumen in the presence fibrous materials based on cellulose and chrysotile asbestos used as stabilizing additives production crushed stone-mastic asphalt concrete mixtures have been studied. It has established that supramolecular structure fibers characterizing interaction between macromolecules largely determines effectiveness their structuring action fo...

The predominant asbestos fibre type used in the production of asbestos cement is chrysotile. The use of asbestos in relation to fibre type in a Norwegian asbestos cement plant during 1942-80 was 91.7% chrysotile, 3.1% amosite, 4.1% crocidolite, and 1.1% anthophyllite respectively. Electron microscopy and x ray microanalysis of lung tissue samples of asbestos cement workers who had died of malig...

Samples of rockwool and glass fibre were compared with chrysotile fibres for their capacity to hydroxylate 2-deoxyguanosine to 8-hydroxydeoxyguanosine, a reaction that is mediated by formation of hydroxyl radicals. All three fibres produced 8-hydroxydeoxyguanosine in the absence of H2O2. The chrysotile fibres were most potent and produced about ten times more of the modified nucleoside than roc...

An Italian appeal court has increased the sentence of two leading asbestos industrialists from sixteen to eighteen years in prison for criminal conduct in covering up the hazards of asbestos. Yet, unbelievably, at the May 2013 meeting of the UN Rotterdam Convention, Russia perpetuated the same deadly deception in order to export asbestos, while covering up its hazards. What is shocking is that ...