FITO LÓPEZ, CARLOS (2015). CASES STUDIES: APPLICATION OF THE WEB BASED TOOLKIT TO ASSESS THE RISK...

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nCases 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 [email protected]

NanoforumMilan / September , 2015

REACHnano is partly funded by the European Commission Life+ with grant agreement LIFE11 ENV/ES/549

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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)

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1. Scope and activities covered in the case study


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n1. 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)

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n1. Scope and activies covered in the case study

Activities covered


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)

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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


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.

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2. Risk Assessment Module: Exposure estimations measured data


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Preparation of the exposure scenario – case 1

2. Application of the Risk Assessment Module


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Risk Characterization – case 1



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Analysis of measured data



• Concentrations levels > 20.000 pt/cm3

• Mass concentration (OPS): 0.1 – 0.5 mg/cm3

• Estimated levels: 0.045 mg/cm3

• Correlation accepted

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Analysis of measured data



• Concentrations levels > 20.000 pt/cm3

• Mass concentration (OPS): 0.05 mg/cm3



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Data Analysis – case 3

• Mass concentration (dust track): 0.035 mg/cm3



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Carlos Fito López [email protected]

Thank you for your attention ¡

FITO LÓPEZ, CARLOS (2015). CASES STUDIES: APPLICATION OF THE WEB BASED TOOLKIT TO ASSESS THE RISK...

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Transcript of FITO LÓPEZ, CARLOS (2015). CASES STUDIES: APPLICATION OF THE WEB BASED TOOLKIT TO ASSESS THE RISK...