Post on 09-Apr-2018
WHAT IS CHROMIUM VI?WHAT IS CHROMIUM VI?Hexavalent Chromium Cr(VI) is a Hexavalent Chromium Cr(VI) is a metal particle that can occur metal particle that can occur naturally in rocks but is most naturally in rocks but is most commonly produced by industrial commonly produced by industrial processes.processes.
Strong ability as an oxidizer makes Strong ability as an oxidizer makes it excellent for coatings, corrosion it excellent for coatings, corrosion resistance, etc.resistance, etc.
NEW TWA EXPOSURE LEVELSNEW TWA EXPOSURE LEVELS
Previous PEL Previous PEL –– 52 ug/m52 ug/m33
New PEL New PEL –– 5.0 ug/m5.0 ug/m33
OSHA Action Level OSHA Action Level -- 2.5 ug/m2.5 ug/m33
WHERE IS CHROMIUM VI FOUND?WHERE IS CHROMIUM VI FOUND?
Pigments (red or orange color)Pigments (red or orange color)Paints/CoatingsPaints/CoatingsMetal PlatingMetal PlatingPortland CementPortland CementSteel Mfg Steel Mfg –– Stainless Steel, AlloysStainless Steel, AlloysWelding or Cutting Stainless Steel Welding or Cutting Stainless Steel ––Most common form of exposureMost common form of exposure
WHERE IS CR VI FOUND IN WHERE IS CR VI FOUND IN FOOD PROCESSING INDUSTRY?FOOD PROCESSING INDUSTRY?
Welding Stainless Steel Welding Stainless Steel Stick Electrode WeldingStick Electrode Welding MIG/TIG WeldingMIG/TIG Welding
WHERE IS CR VI FOUND IN FOOD WHERE IS CR VI FOUND IN FOOD PROCESSING INDUSTRY?PROCESSING INDUSTRY?
Plasma Cutting Stainless Steel Plasma Cutting Stainless Steel
HEALTH HAZARDS HEALTH HAZARDS ASSOCIATED WITH CR VI ASSOCIATED WITH CR VI
Lung CancerLung Cancer
Nasal passage ulcerationsNasal passage ulcerations
Skin ulcerationsSkin ulcerations
Allergic and irritant contact dermatitisAllergic and irritant contact dermatitis
HOW DO EXPOSURES HOW DO EXPOSURES OCCUR?OCCUR?
InhalationInhalation -- chromium dust, mist, or fumes chromium dust, mist, or fumes from welding or cutting on stainless steelfrom welding or cutting on stainless steel
Skin ContactSkin Contact –– hands, beards, clothinghands, beards, clothing
IngestionIngestion –– food and beverage food and beverage contaminationcontamination
EXPOSURE DETERMINATIONEXPOSURE DETERMINATIONApproved ACGIH air monitoring methodsApproved ACGIH air monitoring methods
Initial monitoringInitial monitoring< 2.5 ug/m< 2.5 ug/m33 Action Level Action Level –– no action requiredno action required
Periodic monitoringPeriodic monitoring>>2.5 ug/m2.5 ug/m33 Action Level Action Level
–– Periodic monitoring every 6 months Periodic monitoring every 6 months
>>5.0 ug/m5.0 ug/m33 –– PEL PEL Periodic monitoring every 3 monthsPeriodic monitoring every 3 monthsEmployee notification of resultEmployee notification of result
Additional MonitoringAdditional MonitoringRequired if changes are made to process, materials, eq, etc.Required if changes are made to process, materials, eq, etc.
COMPLIANCE METHODS
Engineering/Work Practice Controls
PPE & Respiratory Protection
Hygiene Methods
Housekeeping
Medical Surveillance
ENGINEERING CONTROLSENGINEERING CONTROLSReduce employee exposure < PELReduce employee exposure < PEL
Reduce to lowest level possible then Reduce to lowest level possible then supplement with PPE.supplement with PPE.
Demonstrate no exposures >PEL for 30 or Demonstrate no exposures >PEL for 30 or more days/year then engineering controls not more days/year then engineering controls not needed.needed.
PPE & RESPIRATORY PPE & RESPIRATORY PROTECTIONPROTECTION
Protective clothing and equipmentProtective clothing and equipmentNo cost to employeeNo cost to employeeBased on exposure levelsBased on exposure levels
Respiratory protection is required when:Respiratory protection is required when:Welding outside of regulated areasWelding outside of regulated areasExposure > 5.0 ug/mExposure > 5.0 ug/m33 (PEL)(PEL)Exposure > 5.0 ug/mExposure > 5.0 ug/m33 (PEL) for fewer than 30 (PEL) for fewer than 30 daysdaysEmergenciesEmergencies
HYGIENE METHODSHYGIENE METHODSSpecialized laundry procedures for protective Specialized laundry procedures for protective clothing clothing
Change rooms and storage areasChange rooms and storage areas
Washing facilitiesWashing facilities
Food/drink prohibited in regulated areasFood/drink prohibited in regulated areas
HOUSEKEEPINGHOUSEKEEPING
HEPA filter vacuums required for cleanupHEPA filter vacuums required for cleanup
No compressed air allowed during cleanupNo compressed air allowed during cleanup
Hexavalent waste disposed of in sealed Hexavalent waste disposed of in sealed labeled bagslabeled bags
MEDICAL SURVEILLANCEMEDICAL SURVEILLANCEMedical surveillance required if AL is Medical surveillance required if AL is exceeded 30 days/yearexceeded 30 days/year
Initial evaluation within 30 days of assignmentInitial evaluation within 30 days of assignment
Annual evaluation Annual evaluation
Emergency evaluationEmergency evaluation
Termination of employment evaluationTermination of employment evaluation
SAFETY TRAININGSAFETY TRAINING
Elements of the Hexavalent Chromium Elements of the Hexavalent Chromium StandardStandard
Hazard Communication Hazard Communication
PPE & Respiratory ProtectionPPE & Respiratory Protection
Hygiene Hygiene
HousekeepingHousekeeping
COMPLIANCE DATESCOMPLIANCE DATESEffective Date Effective Date –– February 28, 2006February 28, 2006
Full Compliance Dates:Full Compliance Dates:November 27, 2006 November 27, 2006 -- 20 or more employees20 or more employeesMay 30, 2007 May 30, 2007 –– 19 or fewer employees19 or fewer employees
Engineering Controls Compliance Dates:Engineering Controls Compliance Dates:May 31, 2010 May 31, 2010 –– first standard to definitively state first standard to definitively state Engineering controls to be used by certain dateEngineering controls to be used by certain date
DEFINED ACTION PLAN
Determine whether standard applies
All plants tested via air sampling methods by 11-01-06
Communication of results to employees via training
IH SAMPLINGDetermine employee exposure while welding on stainless steel
Build historical database to show activities below threshold for:
Different types of welding –MIG/TIG/stick/plasmaStated activities on different dates at different plants
IH MONITORING RESULTS21 plants sampled
Sampling activities type: vat repair, equipment repair, etc.
Highest Exposures
Stick Welding
Plasma Cutting
ENGINEERING CONTROLSPortable exhaust –welding on production floor
Ensure equipment is operating efficiently and employees use it!
RESPIRATORY PROTECTIONRESPIRATORY PROTECTIONTypeType
N95 respiratorN95 respiratorWhen to useWhen to use
Fabrication welding projects outside of Fabrication welding projects outside of designated welding areasdesignated welding areasPlasma Cutting Plasma Cutting
ENGINEERING/WORK ENGINEERING/WORK PRACTICE CONTROLSPRACTICE CONTROLS
Consistent and Proper Use of Local Exhaust Consistent and Proper Use of Local Exhaust Ventilation Controls Ventilation Controls –– snorkels/hoods etc.snorkels/hoods etc.
Discussion PointDiscussion Point
HYGIENE METHODSHYGIENE METHODSFood/drink prohibited in welding areasFood/drink prohibited in welding areas
Personal HygienePersonal HygieneWash Hands and Face After WeldingWash Hands and Face After Welding
HOUSEKEEPINGHOUSEKEEPING
All surfaces must be maintained as free as All surfaces must be maintained as free as practicable of accumulations of welding dust practicable of accumulations of welding dust and particles. and particles.
No compressed air allowed during cleanup. No compressed air allowed during cleanup. Cleaning equipment must be handled in Cleaning equipment must be handled in manner that minimizes reentry of welding manner that minimizes reentry of welding dust and particles.dust and particles.
Wrapping It Up!Does it Apply?Exposure Analysis!Control Methods!Medical Surveillance!Employee Training!