Upload
others
View
5
Download
1
Embed Size (px)
Citation preview
Environmental Health & Engineering, Inc. | www.eheinc.com 1
A NEW APPROACH TO CHEMICAL EXPOSURE ASSESSMENT: BETTER PROTECTION, IMPROVED EFFICIENCY
TABLE 1 PRIORITIZING CHEMICALS BASED ON SEMI-QUANTITATIVE EVALUATION
Semi-Quantitative Industrial Hygiene Ranking Scheme
Rating*
OEL Ranking (mg/m3)
Engineering Controls Intensity of Use
Quantity Frequency Duration
Mass Volume
1 >100 Full (e.g., fume hood, fully
enclosed glove box) ≤1 mg ≤ 1 mL ≤1 month ≤15 min
2 ≤100 Partial (e.g., LEV) ≤100 mg ≤100 mL
≤1 per week ≤1 hour
3 ≤10 Enclosed (e.g., HPLC
bottles) ≤500 mg
≤500 mL
≤3 per week ≤4 hours
4 <2 None (e.g., open bench) Grams Liters >3 per week >4 hours OEL occupational exposure limit mg/m3 milligrams per cubic meter mL milliliters
* The rating applies to each of the six categories, ranking, engineering controls, mass, volume, duration individually.
Exposure rating = OEL Ranking x Engineering Control x Intensity of Use Average
TABLE 2 RANKING BASED ON RESULTS
Preliminary Quantitative Exposure Rating Scheme
Exposure Rating Description
1 Maximum concentration ≥ lowest OEL
2 Maximum concentration ≥ 50% and < lowest OEL
3 Maximum concentration ≥ 10% and <50% of the lowest OEL
4 Maximum concentration <10% of the lowest OEL
OEL occupational exposure limit
Environmental Health & Engineering, Inc. | www.eheinc.com 2
TABLE 3 AIHA GUIDANCE FOR SAMPLING FREQUENCY (AIHA, 2006)
Guidance for Sampling Frequency (AIHA, 2006)
Exposure Rating Description Typical Monitoring Frequency
1 Exposures ≥OEL Quarterly
2 Exposures ≥50% and <OEL Semi-annually
3 Exposures ≥25% and <50% of the OEL Annual
4 Exposures <25% of the OEL Biannual
OEL occupational exposure limit
EXPOSURE ASSESSMENT PROCESS
AIHA, 2006
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
February 5 2014February 5, 2014
Compliance-based Approach v.Comprehensive Program
OSHA AAALACInternal
EHS Audits
www.eheinc.com 2
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
IH Management of the Past
Exposure Assessment
www.eheinc.com 3
Exposure Monitoring
IH Management Moving Forward
Engineering ControlsHazard
Communication
AdministrativeControls
Hazardous Materials
Management Exposure Assessment
www.eheinc.com 4
Personal Protective Equipment
Exposure Monitoring
Education and Training
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Current Approach
Sample collection Analysis Reporting
www.eheinc.com 5
New Approach
St t
Sample collection Analysis Reporting
Strategy
www.eheinc.com 6
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
New Approach
St t
Sample collection Analysis Reporting
Strategy
R t
www.eheinc.com 7
Reassessment
Barriers
• Very large/incomplete chemical inventories
• Resources
• Time
• Other issues are priority
Very large/incomplete inventoriesLack of a programLimited resources
www.eheinc.com 8
• Lack of a programManual processes
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Laboratory
No IH Program
None/few EH&S staff
Inconsistent data gathering
www.eheinc.com 9
g g
Many chemicals
www.eheinc.com 10
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Step 1: Narrowing InventoriesStep 1: Narrowing Inventories
Step 2: Information Gathering
www.eheinc.com 11
Step 3: Prioritization
Step 1 – Narrowing Inventories
~5,000
www.eheinc.com 12
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Step 1 – Narrowing Inventories
~5,000
www.eheinc.com 13
Step 1 – Narrowing Inventories
~5,000
www.eheinc.com 14
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Step 2 – Information Gathering
www.eheinc.com 15
Step 2 – Information Gathering
Intensity• Intensity
• Controls
• Automated tools
www.eheinc.com 16
tools
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Step 2 – Information Gathering
www.eheinc.com 17
Isoflurane Noise
LAAs Metal alloys
Step 3 - Prioritization
Table 1 Semi-Quantitative Industrial Hygiene Ranking Scheme
Rating*OEL
Ranking (mg/m3)
Engineering ControlsIntensity of Use
QuantityFrequency Duration
Mass Volume
1 >100Full (e.g., fume hood, fully enclosed glove
box)≤1 mg ≤mL ≤1 month ≤15 min
2 ≤100 Partial (e.g., LEV) ≤100 mg≤100 mL
≤1 per week
≤1 hour
www.eheinc.com 18
mL week
3 ≤10Enclosed (e.g., HPLC
bottles)≤500 mg
≤500 mL
≤3 per week
≤4 hour
4 <2None (e.g., open
bench)Grams Liters >3 per week >4 hours
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Step 3 – Laboratory
Rankings
Agent
Rankings
Exposure Rating
PriorityGroup
UseOEL
EngineeringControl
Quantity Frequency Duration
Chloroform 3 4 2 3 3 32 1Preparing
cells
Hydrogen peroxide
4 4 4 3 3 53 1Cleaningsurfaces
Cleaning
www.eheinc.com 19
Isopropanol 1 4 3 3 3 12 2Cleaningsurfaces
Noise NA 1 NA 3 2 3 4Cagewash
Step 3 – Laboratory
Rankings
Agent
Rankings
Exposure Rating
PriorityGroup
UseOEL
EngineeringControl
Quantity Frequency Duration
Chloroform 3 4 2 3 3 32 1Preparing
cells
Hydrogen peroxide
4 4 4 3 3 53 1Cleaningsurfaces
Cleaning
Chloroform 3 4 2 3 3 32 1Preparing
cells
OEL x Control x Average intensity = Ranking
www.eheinc.com 20
Isopropanol 1 4 3 3 3 12 2Cleaningsurfaces
Noise NA 1 NA 3 2 3 4Cagewash
OEL x Control x Average intensity = Ranking
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Targeted Assessment
Laboratory
5,000
www.eheinc.com 21
Targeted Assessment
Laboratory
5,000
www.eheinc.com 22
25 high~50 lower
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Quantitative Exposure Results
www.eheinc.com 23
Step 1: Narrowing Inventories
Step 2: Information Gathering
Step 3: Prioritization
www.eheinc.com 24
Step 4: Program Maintenance
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Step 1: Narrowing Inventories
Step 2: Information Gathering
Step 3: Prioritization
www.eheinc.com 25
Step 4: Program Maintenance
Step 1: Narrowing Inventories
Step 2: Information Gathering
Step 3: Prioritization
1
2
www.eheinc.com 26
Step 4: Program Maintenance3
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Step 1: Narrowing Inventories
Step 2: Information Gathering
Step 3: Prioritization
www.eheinc.com 27
Step 4: Program Maintenance
Managing the Program
SharePoint
www.eheinc.com 28
SharePoint
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
SharePoint Tools
• Create Sampling Event calendar
• Populate list of standards for comparison
• Real-time measurements and exposure monitoring events lists
www.eheinc.com 29
Scheduling Events
www.eheinc.com 30
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Sampling Program Tracking
www.eheinc.com 31
• Enter data from exposure monitoring events
• Enter data for real-time measurements
Automate the Program
VS
www.eheinc.com 32
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Reporting Dashboard
www.eheinc.com 33
• Provides infrastructure d t l
Summary
and tools• Customizable• Better use resources• Standardize data
collection
www.eheinc.com 34
• Centralized management system
• Auto-administration
A New Approach to Chemical Exposure Assessment: Better Protection, Improved Efficiency
Environmental Health & Engineering, Inc. | www.eheinc.com
Additional Information:
Exposure Assessment Program p gDevelopmenthttp://www.eheinc.com/ih_exp_assess.htm
EH&E SharePoint Solutionshttp://www.eheinc.com/ehe_web_solutions.htm
Microsoft SharePoint http://sharepoint.microsoft.com/Pages/Default.aspx
Contact Information:
Erin [email protected]
Karrie [email protected]