PM CONTROL TECHNOLOGIES: A RECOMMENDED APPROACH FOR THE BEST RESULTS

摘要

1. Usually appears after ten years when exposed to crystalline silica (quartz); more quickly if workers are exposed to higher concentrations; 2. Continues to evolve even after the worker's exposure; 3. Complications: lung cancer, tuberculosis and heart problems; 4. Represents 6% of all occupational diseases(Canada); 5. About 35 new cases each year in OC.