About absence of amphibole fibres in chrysotile of the company "Uralasbest"

"Studying of a dust content of air of a working zone at the enterprises for extraction and dressing of chrysotile-asbestos of industrial complex "Uralasbest", city of Asbest, Russia"

The Extract from report

A.Tossavajnen, Helsinki, Finland; R.Riala, Helsinki, Finland; R.Kjamppi, Helsinki, Finland; M.Holtta, Helsinki, Finland; P.Tohka, Helsinki, Finland; V.Johns, Morgantaun, the USA; D.Grous, Morgantaun, the USA; D.Shvegler-Berri, Morgantaun, the USA; D.Parker, Morgantaun, the USA; L.Elovsky, Russian Academy of Medical Science, Moscow, Russia; Е.Kovalevsky, Russian Academy of Medical Science, Moscow, Russia; S.Domnin, Ekaterinburg, Russia; E.Plotko, Ekaterinburg, Russia; S.ShCherbakov, Ekaterinburg, Russia; S.Kashansky, Ekaterinburg, Russia


Finland, Helsinki, 1996


This research is a part of joint Russian-American-Finnish scientific work within of 3 year program "Studying of working conditions and a state of health of the workers occupied on working out of asbestine deposits of Siberia" in which Russian Academies of Medical Science, the Ekaterinburg Medical Centre of science, the American National Institute of the Labour safety and Hygiene, and the Finnish Institute of Medicine of Work, participate.


All found out in air of the surveyed enterprises of a fibre were chrysotile. Amphibole fibres were not revealed neither in ore, nor in production, in tests of a dust from air of a working zone. Concentration of free SiO2 was low 1 % on weight.