Ce diaporama a bien été signalé.
Nous utilisons votre profil LinkedIn et vos données d’activité pour vous proposer des publicités personnalisées et pertinentes. Vous pouvez changer vos préférences de publicités à tout moment.
Application of Industrial Hygiene Risk
Assessment Model at Nine sites in Six
countries in Asia
Maharshi Mehta, CSP, CIH, A...
Agenda
•Background
•Industrial Hygiene Risk assessment Model – Introduction
•Risk assessment methods
•Results
•Challenges
...
Background
• Industrial Hygiene Risk Assessment (IHRA, Qualitative)
conducted at 9 sites in Asia.
• Included wastewater tr...
Industrial Hygiene Risk Assessment
Model - Introduction
• Qualitative assessments were performed.
• Risk was evaluated wit...
Risk Ranking
• Risk ranking for each criterion
• Separate calculation for inhalation risk, skin absorption
• Final risk as...
Before Beginning the Assessment..
• Obtained chemical list, composition, % of ingredient,
properties (Vapor Pressure), exp...
Data Collection Process
• Walkthrough to identify Homogeneous Exposure Groups
(HEGs).
• Detailed review of each HEG
• Inte...
Risk Ranking and Exposure
Monitoring Plan
• Manually in batch upload template taken for
company intranet work
• Or directl...
Company IHRA Software
• Access to portal through secure login.
• Initially, activity description sheet is uploaded on the
...
Results
High and Medium Risk Activities
Identified – Partial List
No. Type of industry Activity Agent (s) of Concern
1 Parts Repai...
No. Type of industry Activity Agent (s) of Concern
6 Healthcare Soldering Lead
7 Healthcare Mold Preparation n-butyl glyci...
Challenges in Data Collection Process
• Frequency Duration
– Variability at repair shop based on when parts
come for repai...
Approaches adopted
• Obtain history on frequency duration in last
week/month/year
• Interview multiple operators in differ...
Additional challenge and approach
adopted
• Non-availability of Occupational Exposure Limits (OELs),
as inhalation ranking...
Benefits
• Systematic approach to identify all potential risk of routine
and non-routine activities
• Cost-effective
– Exp...
Conclusions
• IHRA was a powerful tool in identifying potentially high,
medium and low risk HEGs.
• Subsequent limited exp...
Future Action Plan
• Frequency-duration criteria to include acutely toxic
compound less frequently used for shorter durati...
Questions? Thank You!
Vous avez terminé ce document.
Prochain SlideShare
What to Upload to SlideShare
Suivant
Prochain SlideShare
What to Upload to SlideShare
Suivant

Partager

Applied industrial hygiene risk assessment globally AIHce Montreal 2013

Applied industrial hygiene risk assessment globally AIHce Montreal 2013

  • Soyez le premier à aimer ceci

Applied industrial hygiene risk assessment globally AIHce Montreal 2013

  1. 1. Application of Industrial Hygiene Risk Assessment Model at Nine sites in Six countries in Asia Maharshi Mehta, CSP, CIH, Ankit Sharma T. Mehta, International Safety Systems, Inc. , Washingtonville, NY, New Delhi, India
  2. 2. Agenda •Background •Industrial Hygiene Risk assessment Model – Introduction •Risk assessment methods •Results •Challenges • Lessons Learned •Future Action Plan
  3. 3. Background • Industrial Hygiene Risk Assessment (IHRA, Qualitative) conducted at 9 sites in Asia. • Included wastewater treatment unit, parts repair shops, healthcare equipment assembly, wind turbine assembly and power control assembly shops. • Purpose of the assessment was to qualitatively identify high, medium and low risk activities
  4. 4. Industrial Hygiene Risk Assessment Model - Introduction • Qualitative assessments were performed. • Risk was evaluated with respect to the following hazards and probability of occurrence: – Duration and Frequency of activity – Inhalation hazard – Airborne potential – Engineering Controls – Past Monitoring Records – Skin contact potential – Skin Hazard – Ingestion Risk
  5. 5. Risk Ranking • Risk ranking for each criterion • Separate calculation for inhalation risk, skin absorption • Final risk as sum of inhalation, skin absorption and multiplication of ingestion risk.
  6. 6. Before Beginning the Assessment.. • Obtained chemical list, composition, % of ingredient, properties (Vapor Pressure), exposure limits, skin hazards, ingestion risk • Opening meeting was held with site head, production leaders, environment health and safety team, utilities team and relevant departments to discuss purpose of assessment.
  7. 7. Data Collection Process • Walkthrough to identify Homogeneous Exposure Groups (HEGs). • Detailed review of each HEG • Interviews – Process details – Frequency duration, volume used • Observations of exposure controls, work practices • Data review – Previous reliable, reproducible and representative exposure monitoring – Preventive maintenance • Closing meeting to discuss observations and recommendations
  8. 8. Risk Ranking and Exposure Monitoring Plan • Manually in batch upload template taken for company intranet work • Or directly entered in to company intranet work • Determined high, medium low risk ranking • Development of exposure monitoring plan for HEGs
  9. 9. Company IHRA Software • Access to portal through secure login. • Initially, activity description sheet is uploaded on the software and the risk assessment sheet is completed and uploaded. • The results are considered incomplete till reviewed and approved by the concerned IH Leader for the business instance of the company. • Assessments can be edited and updated online based on modifications in the process at the site.
  10. 10. Results
  11. 11. High and Medium Risk Activities Identified – Partial List No. Type of industry Activity Agent (s) of Concern 1 Parts Repair Shop Acid Gas stripping Hydrogen Chloride 2 Parts Repair Shop Repair of parts (Welding, Grinding and Polishing) Hexavalent Chromium, Nickel, Cobalt, Ozone, Noise 3 Parts Repair Shop Ultrasonic Cleaning Potassium Hydroxide / Sodium Hydroxide 4 Parts Repair Shop Aluminum Oxide blasting in walk-in booths Respirable Particulates, Noise 5 Healthcare Glass Sealing Nitrogen Dioxide
  12. 12. No. Type of industry Activity Agent (s) of Concern 6 Healthcare Soldering Lead 7 Healthcare Mold Preparation n-butyl glycidyl ether 8 Healthcare Cleaning of parts - Finishing Toluene 9 Wastewater Treatment Chlorine Tonner Replacement Chlorine 10 Turbine Assembly Application of Polyurethane Paint on Hub Methyl Isocyanate
  13. 13. Challenges in Data Collection Process • Frequency Duration – Variability at repair shop based on when parts come for repair and customer requirements – Potential short term exposure will have lower ranking, however high potential risk for STEL/ ceiling limit substance • More than 50 chemicals, chemical ingredients/HEG – may sound like time consuming process
  14. 14. Approaches adopted • Obtain history on frequency duration in last week/month/year • Interview multiple operators in different shifts to understand variation. • Checking inventory and stock records of chemicals. • Review of production / repair data records for previous weeks / months / years duration frequency. • Increase/decrease risk based on professional judgment • Selecting sentinel agent in liquid, gaseous and solid phase from all 50+ chemicals/HEG and conduct detailed IHRA for sentinel agent
  15. 15. Additional challenge and approach adopted • Non-availability of Occupational Exposure Limits (OELs), as inhalation ranking primarily based on Occupational Exposure Limits. • Professional judgment for hazard ranking based on hazard properties when OEL is not available • Approach adopted – Risk Phrases – HSDB and other references
  16. 16. Benefits • Systematic approach to identify all potential risk of routine and non-routine activities • Cost-effective – Exposure monitoring for only 20 high/medium risk activities identified from 200 risk assessments. – Exposure monitoring for about 20 chemicals from list of 300+ chemicals – Corporate EHS professionals are not involved in IHRA Critical when corporation has 1500+ site • Opportunity to implement controls before monitoring.
  17. 17. Conclusions • IHRA was a powerful tool in identifying potentially high, medium and low risk HEGs. • Subsequent limited exposure monitoring confirmed the potential risk • Improved process and engineering controls reduced health risk • Professional judgment is critical in determining degree of risk
  18. 18. Future Action Plan • Frequency-duration criteria to include acutely toxic compound less frequently used for shorter duration • Modify ranking criteria to reduce professional judgment – Airborne ranking based on vapor pressure or particle size • Comprehensive filed and class room training for site EHS professionals – Conducting IHRA – Working with software and uploading process • Analysis of high, medium and low potential risk identified at sites globally and ensure steps are taken to reduce risk
  19. 19. Questions? Thank You!

Applied industrial hygiene risk assessment globally AIHce Montreal 2013

Vues

Nombre de vues

1 111

Sur Slideshare

0

À partir des intégrations

0

Nombre d'intégrations

1 010

Actions

Téléchargements

0

Partages

0

Commentaires

0

Mentions J'aime

0

×