The ECOH Band Model for OEL Compliance & Web Application Brochure

Om Malik ECOH Management Inc. Mississauga. Ontario, Canada www.ecoh.ca Occupational Hygiene Association of Ontario PDC Toronto, October 17, 2008 2 •? Ontario Ministry of Labour Concerned about SME compliance with OELs •? Wanted a very simple, cost effective tool to help them select & implement appropriate engineering controls •? Preferably a WEB based application 3 •? Pharmaceutical Industry •? COSHH Essentials (British) •? Alternative based on WHMIS (Canada): ECOH Bands Exposure Control for Occupational Health 4 “Essentially, all models are wrong but some are useful.” George E.P. Box, Industrial Statistician 5 Control Selection Airborne Conc. Health Effect TLV/OEL Exposure Compliance Requirements Toxicity 6 DERIVATION OF ECOH CONTROL BANDS 7 Airborne Conc. Volatility Dustiness Quantity + +Solids Liquids 8 LOW MEDIUM HIGH grams kilograms tonnes ml litres cubic metres (packets (kegs or drums) (bulk) or bottles) 3 Levels: 9 Description Dust Level Pellets, flakes, granules Little dust LOW Visible dust; Dust Settles out Quickly MED Fine, light powder Dust remains airborne HIGH 10 Boiling Point Level >150°C LOW 50 to 150°C MED <50°C HIGH 11 2 Medium 3 High 3 High 1 Small 2 Medium 3 High 1 Small 1 Small 2 Medium Dustiness Volatility High Medium Low Small Medium Large QUANTITY 12 Combining Exposure Potential and Health Hazard Rating 13 Description WHMIS Rating Minimal hazard; relatively harmless; Practically non-toxic; no significant health risk Slight hazard; slightly toxic Not a WHMIS controlled product LOW Moderate hazard; moderately toxic D1B, D2B MED Serious hazard; highly (or very) toxic D1A, D2A, E HIGH WHMIS health classification is established * Health hazard rating: a three-tier system *D1A, D1B: acute toxicity; D2A, D2B: other toxic effects (chronic) 14 %withTLV15 Medium High High Low Medium High Low Low Medium Health Hazard High Medium Low Small Medium Large Exposure Potential 16 Combining Risk Level with OEL Rating 17 C: LOW Less than 50 ppm for vapors Less than 0.5 mg/m3 for solids & mists Substances with Ceiling Exposure Values B:MEDIUM Between 50 & 500 ppm for vapors Between 0.5 & 5.0 mg/m3 for solids & mists A: HIGH Greater than 500 ppm for vapors Greater than 5.0 mg/m3 for solids & mists No OEL and no available Toxicological data Distribution of OELs (mg/m3) SCALE eCOSHH ECOH (TWA+CEV) >10 mg/m3 9 69 10 147 5 1 116 0.5 68 0.1 117 0.05 54 0.01 <0.01 15 Distribution of OELs (ppm) SCALE eCOSHH ECOH (TWA+CEV) >500 ppm 22 22 500 84 84 50 5 94 271 0.5 90 0.05 65 < 0.05 22 20 21 APPENDIX 2. Control Decision Circle 22 •? Entries: ~2300 substances •? ~700 with TLV/OEL •? Chemical Names •? Synonyms •? CAS Numbers •? Data, Properties: •? TLV/OEL •? Boiling Point, °C (Liquids) •? Health Hazard Rating (High, Medium, Low) 23 Quantity & Dustiness Boiling Point OEL/TLV Health Hazard CONTROL ADVICE CAS Number Synonym Chemical Name ECOH WEB Calculator 24 25 26 27 28 29 30 Access ECOH WEB CALCULATOR at www.ecoh.ca » [News/Publications] » [Occupational Exposure Limits (OEL) Web Calculator] Exercises with ECOH Web Calculator Operation Contaminant Amount Dustiness Control Sand Blasting Silica Large High Chrome Plating Sulfuric Acid Potass. Dichromate ? ? --- ? Vapour Degreasing TCE Large --- Painting (Brushing) Toluene Mineral Spirits Small Large --- --- Machining Mineral Oil Small --- Grinding Iron Medium Low