FITO LÓPEZ, CARLOS (2015). CASES STUDIES: APPLICATION OF THE WEB BASED TOOLKIT TO ASSESS THE RISK IN A SiO2 MANUFACTURING COMPANY
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This document summarizes a case study application of a web-based toolkit to assess risk at a SiO2 manufacturing company. The case study evaluated occupational exposure to nanoparticles during bag filling and mixing operations. Measured exposure data, including particle number concentrations and mass concentrations, were collected and used to estimate exposure levels. The exposure scenarios, risk characterization, and analysis of measured data are described for bag filling of 550kg of powder over 4 hours, mixing operations with 5kg of powder over 5 minutes, and a functionalization process. The results showed some measured exposures above limits but estimated exposures below limits when engineering and administrative controls were implemented.
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FITO LÓPEZ, CARLOS (2015). CASES STUDIES: APPLICATION OF THE WEB BASED TOOLKIT TO ASSESS THE RISK IN A SiO2 MANUFACTURING COMPANY
- 1. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Cases studies: Application of the Web Based toolkit to assess the risk in a SiO2 manufacturing company Carlos Fito López – Project Coordinator Head of the Safety Unit & Nanosafety Group Leader cfito@itene.com Nanoforum Milan / September , 2015 REACHnano is partly funded by the European Commission Life+ with grant agreement LIFE11 ENV/ES/549
- 2. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Outline 1. Scope and activities covered 2. Application of the Risk Assessment Module: Exposure estimations measured data REACHnano is funded by DG Environment under the LIFE+ Programme Environmental Policy and Governance (LIFE11 ENV/ES/000549)
- 3. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation 1. Scope and activities covered in the case study REACHnano is funded by DG Environment under the LIFE+ Programme Environmental Policy and Governance (LIFE11 ENV/ES/000549)
- 4. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation 1. Scope and activies covered in the case study Activities covered REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials The following activities were considered: • Exposure Scenario name: Semi-Automated Bagging • Contributing scenario: Bag filling • Powder form • Exposure time: 4 h • Quantity used: 550 kg • Exposure controls: PPE + Local Exhaustive Ventilation • Nº of workers exposed: 2 • Dustiness level: medium (Nanogenotox) • Process: transfer of the NPs to 25 kg sacks • Administrative procedures implemented Case 1. Industrial scale facilities – Sack filling (25 kg)
- 5. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation 1. Scope and activies covered in the case study Activities covered REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials The following activities were considered: • Exposure Scenario name: Mixing in closed systems • Contributing scenario: Filling / Harvesting • Powder form • Exposure time: 5 min • Quantity used: 5 kg • Exposure controls: PPE + General ventilation • Nº of workers exposed: 3 • Dustiness level: medium (Nanogenotox) • Process: transfer of the NPs to 5 Kg sacks • Administrative procedures implemented Case 2. Pilot scale facilities – Mixing operations (5 kg)
- 6. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation The company studied deals with R&D, production, engineering and selling of new nanostructured materials for the mechanical, automotive, ceramics, glass, chemical, textile, aeronautical, plastic material and composite material and polymer industries, and everything connected with these industries. Company information and scope of the study 1. Scope and activies covered in the case studies REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials The case study developed focused on the quantitative evaluation of the exposure to airborne ENPs at laboratory scale- The case study work on the characterization of the occupational exposure to TiO2 during a functionalization process.
- 7. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation 2. Risk Assessment Module: Exposure estimations measured data REACHnano is funded by DG Environment under the LIFE+ Programme Environmental Policy and Governance (LIFE11 ENV/ES/000549)
- 8. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Preparation of the exposure scenario – case 1 2. Application of the Risk Assessment Module REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 9. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 10. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 11. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Risk Characterization – case 1 2. Application of the Risk Assessment Module REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 12. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Analysis of measured data 2. Application of the Risk Assessment Module REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials • Concentrations levels > 20.000 pt/cm3 • Mass concentration (OPS): 0.1 – 0.5 mg/cm3 • Estimated levels: 0.045 mg/cm3 • Correlation accepted
- 13. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Preparation of the exposure scenario – case 2 2. Application of the Risk Assessment Module REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 14. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 15. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 16. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Analysis of measured data 2. Application of the Risk Assessment Module REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials • Concentrations levels > 20.000 pt/cm3 • Mass concentration (OPS): 0.05 mg/cm3 • Estimated levels: 0.008 mg/cm3 • Correlation accepted
- 17. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Preparation of the exposure scenario – case 3 2. Application of the Risk Assessment Module REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 18. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials
- 19. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation REACHnano - Development of a Web Based toolkit to support the Chemical Safety Assessment of Nanomaterials 2. Application of the Risk Assessment Module Data Analysis – case 3 • Mass concentration (dust track): 0.035 mg/cm3 • Estimated levels: 0.017 mg/cm3 • Correlation accepted
- 20. Confidential.OnlyforinternaluseofCompany Business,Science&Innovation Carlos Fito López cfito@itene.com Thank you for your attention ¡