| Document ID (ISN) | 108867 |
| CIS number |
08-1395 |
| ISSN - Serial title |
0303-7657 - Revista brasileira de saúde ocupacional |
| Year |
2007 |
| Convention or series no. |
|
| Author(s) |
Santos A.M.A., Cançado R.Z.L., Anjos R.M., Amaral N.C., Lima L.C.A. |
| Title |
Characteristics of occupational exposure to dust in the work environment of marble-working workshops in the city of São Paulo |
| Original title |
Características da exposição ocupacional a poeiras em marmorarias da cidade de São Paulo [in Portuguese] |
| Bibliographic information |
July-Dec. 2007, Vol.32, No.116, p.11-23. Illus. 18 ref. |
| Internet access |
http://www.fundacentro.gov.br/rbso/BancoAnexos/RBSO%20116%20Marmorarias.pdf [in Portuguese]
|
| Abstract |
This evaluation of the characteristics of dust to which workers in marble cutting workshops are exposed took into account the relationships between dust concentrations at the workplace, types of rocks worked on, wet and dry operations, machinery and tools used, and the size distribution of the airborne particles. Marble cutting workshops were characterized by high concentrations of dust in the inhalable, thoracic and respirable fractions, produced by the tools used for dry abrasive polishing. Silica concentrations were up to sixteen times higher than the 0.05mg/m3 occupational exposure limit recommended. Marble cutting workshops that made use of the wet abrasive polishing process showed that the probability of environmental concentrations exceeding the exposure limit value could be reduced by up to 99%. |
| Descriptors (primary) |
airborne dust; marble; exposure evaluation; stone dressing; premises; respirable dust |
| Descriptors (secondary) |
particle size distribution; Brazil; silica; safe working methods; limitation of exposure; permissible levels; manual abrasive operations |
| Document type |
D - Periodical articles |
| Country / State or Province | Brazil |
| Subject(s) |
Materials, glass and ceramics
|
| Broad subject area(s) |
Chemical safety
|
| Browse category(ies) |
Exposure evaluation
|
