出版社：National Institute of Occupational Safety and Health
摘要：An intervention study has been conducted in chrysotile asbestos milling processes with an interval of one year. The ‘Membrane Filter Method’ adopted in the former study for fiber concentration estimation has been followed in the present study, to estimate the environmental samples under the same experimental conditions. Though very high fiber levels compared to the prescribed permissible limit in India, have also been obtained in this study, a general reduction trend in the values of mills common to the both studies are observed. A further suitable control measure has been recommended in the paper to reduce fiber levels in the milling processes.
