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Document ID (ISN)111251
CIS number 10-0831
ISSN - Serial title 1077-3525 - International Journal of Occupational and Environmental Health
Year 2008
Convention or series no.
Author(s) Gottesfeld P., Nicas M., Kephart J.W., Balakrishnan K., Rinehart R.
Title Reduction of respirable silica following the introduction of water spray applications in Indian stone crusher mills
Bibliographic information 2nd quarter 2008, Vol. 14, No.2, p.94-103. Illus. 21 ref.
Internet access Reduction_ of_respirable_silica.pdf [in English]
Abstract Respirable crystalline silica dust generated during stone crushing operations has been linked to chronic lung disease and increased risk of tuberculosis. In India, most stone crushing mills operate without any dust control or containment systems. This investigation in an Indian district demonstrated a reduction in respirable particulate mass following the application of a fine mist of water. Average respirable quartz and cristobalite levels declined 82% and 69%, respectively, after water spray controls were installed. This finding suggests that relatively inexpensive modifications that are available in the local market can be effective at reducing silica exposures. Although average exposure levels, particularly during the dry season, may exceed the permissible exposure limit for silica, the overall reductions observed were substantial. Widespread adoption of this simple control technology by stone crushers in India could have a positive public health impact.
Descriptors (primary) India; silica; respirable dust; stone crushing; water spraying; limitation of exposure
Descriptors (secondary) cristobalite; quartz; airborne dust; personal sampling; description of technique
Document type D - Periodical articles
Subject(s) Construction industry
Broad subject area(s) Chemical safety
Browse category(ies) Respiratory protection
Construction industry and civil engineering