2004 Review of Occupational Exposure Limits in Ontario

Transcription

1 Acetonitrile [ ] - Skin 40 ppm (67 60 ppm (100 Acetonitrile [ ] - Skin 20 ppm Exposure limit reduced, STEV eliminated MW Acrylonitrile [ ] (Designated Substance) 2 ppm ( (21.7 mg/m 3 ) Acrylonitrile [ ] - Skin (Designated Substance) 2 ppm (4.3 Addition of skin irritant notation, elimination of CEV MW Allyl propyl disulfide [ ] 2 ppm (12 3 ppm (18 Allyl propyl disulfide [ ] 0.5 ppm Exposure limit reduced, STEV eliminated MW tert-amyl methyl ether [ ] 250 ppm (1, ppm (1,295 tert-amyl methyl ether (TAME) [ ] 20 ppm Acronym added, exposure limit reduced, STEV eliminated MW Asphalt fumes [ ] 5 Asphalt (Bitumen) fume [ ], as benzene-soluble aerosol 0.5 Nomenclature, allowable exposure based on the benzene-soluble aerosol inhalable fraction Azinphos-methyl [ ] - Skin 0.2 Azinphos-methyl [ ] Skin 0.2 Exposure limit developed for aerosol as an inhalable fraction MW Bis (2-(dimethylaminoethyl))ether [ ] 5 ppm (33 Bis (2-(diethylaminoethyl))ether (DMAEE) [ ] - Skin 0.05 ppm 0.15 ppm Acronym added, exposure limit reduced, addition of skin notation, addition of STEVMW Page 1 of 17

2 2,6-Bis (1,1-dimethylethyl)-4- methylphenol [ ] 10 2,6-Bis (1,1-dimethylethyl)-4- methylphenol [ ] also known as Butylated hydroxytoluene (BHT) 2 Nomenclature, allowable exposure limit developed for aerosol as an inhalable fraction MW Butane [ ] 800 ppm (1,900 Butane, all isomers [ ] 1,000 ppm Exposure limit increased 2-Butoxyethyl acetate [ ] - Skin 25 ppm ( ppm (492 2-Butoxyethyl acetate (EGBEA) [ ] 20 ppm Acronym added, exposure limit reduced, STEV removed, Skin notation removed n-butyl alcohol [ ] - Skin 50 ppm (150 n-butanol [ ] 20 ppm Name of substance, TWAEV developed, CEV removed, Skin notation removed MW Calcium carbonate, including marble (total dust) [ ] 10 Calcium carbonate [ ] 10 (D) Nomenclature, notation added Caprolactam, aerosol [ ] 0.25 ppm (1 Caprolactam [ ] 5 Unit of measurement, allowable exposure developed for aerosol as an inhalable fraction Captan [ ] 5 Captan [ ] 5 Allowable exposure developed as an inhalable fraction MW Page 2 of 17

3 Carbofuran [ ] 0.1 Carbofuran [ ] 0.1 Allowable exposure developed for aerosol as an inhalable fraction MW Chloro-2-propanol [ ] 2-Chloro-1-propanol [ ] Skin 1-Chloro-2-propanol [ ] 2-Chloro-1-propanol [ ] - Skin 1 ppm MW Chlorpyrifos [ ] - Skin Chlorpyrifos [ ] - Skin 0.1 aerosol as an inhalable fraction, STEV removed MW Cyclohexane [ ] Cyclohexanone [ ] - Skin 300 ppm (1, ppm (100 Cyclohexane [ ] 100 ppm Exposure limit reduced MW Cyclohexanone [ ] - Skin 20 ppm 50 ppm Exposure limit reduced, STEV introduced MW Page 3 of 17

4 Demeton [ ] - Skin 0.01 ppm (0.11 Demeton [ ] - Skin 0.05 aerosol as an inhalable fraction MW Demeton-S-methyl [ ] Skin Demeton-S-methyl [ ] Skin ,2-Dichloropropionic acid [ ] 1 ppm (6 2,2-Dichloropropionic acid [ ] 5 Allowable exposure limit developed as an inhalable fraction MW Dichlorvos [ ] - Skin 0.1 ppm (0.9 Dichlorvos (DDVP) [ ] Skin 0.1 aerosol as an inhalable fraction, acronym addedmw Page 4 of 17

5 Dicrotophos [ ] Skin 0.25 Dicrotophos [ ] Skin 0.05 the aerosol as an inhalable fraction MW Diesel fuel [ ; ; ; ; ], as total hydrocarbons - SkinMW various Diesel fuel [ ; ; ; ; ], as total hydrocarbons - Skin 100 ( ar,ar-dimethylbenzenamine (sum of all isomers) [ ] - Skin 0.5 ppm ar,ar-dimethylbenzenamine (sum of all isomers) [ ] Skin also known as Xylidine 0.5 ppm the aerosol as an inhalable fraction MW Dimethyl sulfide [ ] Dimethyl sulfide [ ] 10 ppm MW Dioxathion [ ] - SkinMW Dioxathion [ ] - Skin 0.1 the aerosol as an inhalable fraction Page 5 of 17

6 1,3-Dioxolane [ ] MW ,3-Dioxolane [ ] 20 ppm Disulfoton [ ] 0.1 Disulfoton [ ] - Skin 0.05 the aerosol as an inhalable fraction, skin notation added Dodecyl mercaptan [ ] Dodecyl mercaptan [ ] 0.1 ppm MW Ethane [ ] No specific exposure limit currently. Substance is listed as an asphyxiant in Part 9 of the regulation Ethane [ ] 1,000 ppm TWAEV developed for substance, substance moved from Part 9 (Asphyxiants) of the regulation to Part 4. O-Ethyl O-p-nitrophenyl phenylphosphonothioate [ ] - SkinMW O-Ethyl O-p-nitrophenyl phenylphosphonothioate (EPN) [ ] - Skin 0.1 Allowable exposure limit developed as an inhalable fraction, acronym added Ethion [ ] - Skin 0.4 Ethion [ ] - Skin 0.05 aerosol as an inhalable fraction MW Page 6 of 17

7 2-Ethylhexanoic acid [ ] MW Ethylhexanoic acid [ ] 5 Ethyl tert-butyl ether (ETBE) [ ] MW Ethyl tert-butyl ether (ETBE) [ ] 5 ppm Wheat flour dust (total dust) 3 Flour dust 0.5 Nomenclature, allowable exposure limit developed as an inhalable fraction Gasoline [ ] 900 1,500 Gasoline [ ] 300 ppm 500 ppm CAS number, unit of measurement Glyoxal [ ]MW Glyoxal [ ] 0.1 Hexahydrophthalic anhydride, All isomers [ ; ; ] Hexahydrophthalic anhydride, All isomers [ ; ; ] mg/m3 MW Page 7 of 17

8 1-Hexene [ ] 30 ppm 1-Hexene [ ] 50 ppm Exposure limit increased Hydrogen bromide [ ] 3 ppm (10 Hydrogen bromide [ ] 2 ppm Exposure limit reduced MW Hydrogen Chloride [ ] MW ppm (7.4 Hydrogen Chloride [ ] 2 ppm Exposure limit reduced Isobutyl nitrite [ ] Isobutyl nitrite [ ] 1 ppm MW Isopropyl acetate [ ] 250 ppm (1, ppm ( 1,295 Isopropyl acetate [ ] 100 ppm 200 ppm Exposure limit reduced MW Isopropyl alcohol [ ] MW ppm ( ppm (1,225 Isopropanol [ ] 200 ppm 400 ppm Exposure limit reduced, nomenclature Kerosene, straight-run [ ] hydrosulferized [ ] 35 ppm (250 ) Kerosene [ ; ]/Jet fuels as total hydrocarbon (p) - Skin MW variable 200 Exposure limit reduced, jet fuels added (nomenclature), exposure limit developed as, skin notation added L.P.G. (Liquified petroleum gas) [ ] 1,800 L.P.G. (Liquified petroleum gas) [ ] 1000 ppm Unit of measure changed Page 8 of 17

9 Magnesium oxide fume [ ] MW40.32 Malathion [ ] - Skin MW Magnesium oxide [ ] Malathion [ ] - Skin 1 Allowable exposure changed from fume content to inhalable fraction Allowable exposure limit developed as a aerosol inhalable fraction Maleic anhydride [ ] MW ppm (1 Maleic anhydride [ ] 0.1 ppm Exposure limit reduced Manganese, dust compounds (as manganese) [ Manganese-containing fume (as manganese) [ ] Manganese [ ] inorganic compounds, as Mn STEV eliminated TWAEV limit developed to apply to exposure to 0.2 Manganese, Manganese component of Manganese-containing inorganic compounds Methane [ ] No specific exposure limit currently. Substance is listed as an asphyxiant in Part 9 of the regulation Methane [ ] 1,000 ppm TWAEV developed for substance, substance moved from Part 9 of the regulation (Exposure Values for Simple Asphyxiants) to Part 4 MW 18 Methyl tert-butyl ether (MTBE) [ ] Methyl tert-butyl ether (MTBE) [ ] 50 ppm MW Page 9 of 17

10 Methyl methacrylate [ ] MW ppm (410 Methyl methacrylate [ ] 50 ppm 100 ppm Exposure limit reduced, STEV introduced Mevinphos [ ] - Skin 0.01 ppm ( ppm (0.3 Mevinphos [ ] - Skin 0.01 aerosol as an inhalable fraction, STEV eliminated Molybdenum metal, dioxide disulfide (as molybdenum) [ ] 10 Molybdenum [ ], as Mo Soluble compounds 0.5 e) Nomenclature, limit for soluble compounds of Mo reduced, limits for insoluble compounds developed as inhalable respirable fractions Molybdenum trioxide molybdates (as molybdenum) [ ] 5 Metal insoluble compounds 10 or 3 e) Monocrotophos [ ] 0.25 Monocrotophos [ ] - Skin 0.05 Allowable exposure limit developed as a fraction of inhalable aerosol, skin notation added Page 10 of 17

11 Naled [ ] - Skin 3 Naled [ ] 0.1 Natural gas [ ] Natural gas [ ] 1,000 ppm Allowable exposure limit developed as a aerosol inhalable fraction, skin notation removed Natural rubber latex [ ], as Total proteins - Skin Natural rubber latex [ ], as Total proteins Skin mg/m3 p,p -Oxybis(benzenesulfonyl hydrazide) [ ] p,p -Oxybis(benzenesulfonyl hydrazide) [ ] 0.1 Parathion [ ] - Skin 0.05 Parathion [ ] - Skin 0.05 Allowable exposure limit developed as a aerosol inhalable fraction Page 11 of 17

12 Particulates (insoluble) Not Otherwise Classified (PNOC) 10 (D) or 3 (D)(respira ble) Particles (insoluble or poorly soluble) Not Otherwise Specified (PNOS) 10 or 3 e) Nomenclature, (D) notation removed n-amyl acetate [ ] 100 ppm (530 Pentyl acetate, Sum of all isomers [ ; ; ; ; ; ] 50 ppm 100 ppm New format of listing includes all pentyl isomers of acetate, as a summed total exposure, 3 new isomers sec-amyl acetate [ ] 125 ppm (660 Isoamyl acetate [ ] 100 ppm (530 Perfluorobutyl ethylene [ ] (Phenoxymethyl)oxirane [ ] Phenyl mercaptan [ ] - Skin Perfluorobutyl ethylene [ ] 0.1 ppm (Phenoxymethyl)oxirane [ ] Skin also known as Phenyl glycidyl ether (PGE) MW Phenyl mercaptan [ ] - Skin 100 ppm 0.1 ppm Nomenclature, skin notation added 0.1 ppm MW Page 12 of 17

13 Phosphorothionic acid 0,0-diethyl o-(6-methyl)-2-(1-methylethyl)-4- pyrimidinyl) ester [ ] - Skin 0.1 Diazinon [ ] - Skin 0.01 mg/m 3 Name of substance, allowable exposure limit developed as aerosol inhalable fractionmw Phosphorus (yellow or white) [ ] 0.1 Phosphorus (yellow) [ ] 0.1 Nomenclature, CAS number updated Propane [ ] 2,500 ppm Propane [ ] 1,000 ppm Exposure limit reduced MW 50 n-propyl alcohol [ ] - Skin 200 ppm ( ppm (615 n-propanol (n-propyl alcohol) [ ] 200 ppm 250 ppm Nomenclature, skin notation removed MW Propionaldehyde [ ] Propionaldehyde [ ] 20 ppm MW 58.1 Propylene oxide [ ]] MW Propylene oxide [ ] 2 ppm Pyridine [ ] 5 ppm (16 Pyridine [ ] 1 ppm Exposure limit reduced MW Page 13 of 17

14 Rosin core solder pyrolysis products (as formaldehyde) 0.1 Rosin core solder thermal decomposition products (colophony) [ ] (L) TWAEV withdrawn, notation (L) added to require exposure by all routes be carefully controlled to levels as low as possible, CAS number added, nomenclature Silica, Crystalline Quartz [ ] (Designated Substance) MW e) Silica, Crystalline Quartz [ ] (Designated Substance) 0.05 e) Exposure limit reduced Silicon Carbide (total dust) [ ] 10 (D) Silicon Carbide [ ] Nonfibrous 10 (D) or 3 e)(d) Individual limits developed for Nonfibrous Fibrous forms, limits developed for the inhalable /or respirable fraction with appropriate notation Fibrous (including whiskers) MW e fibre(f)) Sulfuric acid [ ] 1 3 Sulfuric acid [ ] 0.2 (thoracic) Introduces allowable exposure limit for thoracic particulate mass, STEV removed Page 14 of 17

15 Synthetic Vitreous Fibres (Man made Mineral Fibres) Continuous filament glass fibres Continuous filament glass fibres, inhalable 5 Synthetic Vitreous Fibres Continuous filament glass fibres e fibre(f)) or 5 Specific limit for refractory ceramic fibres introduced, limit developed as a respirable fraction or inhalable fraction, (F) notation added where appropriate Glass wool fibres Glass wool fibres e fibre(f)) Rock wool fibres Rock wool fibres e fibre(f)) Slag wool fibres Slag wool fibres e fibre(f)) Special purpose glass fibres Synthetic vitreous fibres, not otherwise classified (excluding fibrous glass dust mineral wool fibre) (E) Special purpose glass fibres Refractory ceramic fibres e fibre(f)) 0.2 f/cc e fibre(f)) Synthetic vitreous fibres, not otherwise classified (E) Page 15 of 17

16 Terbufos [ ] SkinMW Terbufos [ ] Skin 0.01 g/m 3 Tetrafluoroethylene [ ] MW Tetrafluoroethylene [ ] 2 ppm Isocyanates, Toluene diisocyanate (Designated Substance) ppm (0.2 µmoles/m 3 ) 0.02 ppm (0.8 µmoles/m 3 ) Isocyanates, Toluene-2,4 or 2,6- diisocyanate (or as a mixture) [ ; ] (Designated Substance) ppm 0.02 ppm Nomenclature, introduction of STEV elimination of CEV increases exposure limit Trichlorphon [ ] MW Trichlorphon [ ] 1 Turpentine [ ] 560 Turpentine [ ] MW selected monoterpenes [ ; ; ] MW variable 20 ppm Allowable exposure reduced, selected monoterpenes added to regulation, unit of measurement N-Vinyl-2-pyrrolidone [ ] MW N-Vinyl-2-pyrrolidone [ ] 0.05 ppm Zinc oxide (total dust) [ ] 10 mg/ m 3 Zinc oxide [ ] 2 mg/ m 3 e) 10 mg/ m 3 e) Allowable exposure reduced, consolidation of listing, limits developed for the respirable fraction, STEV added Zinc oxide fume [ ] 5 mg/ m 3 10 mg/ m 3 Page 16 of 17

17 Shading of row denotes substance is a new addition to the regulation. 1 TWAEV: Time weighted average exposure value; the average of the airborne concentrations of a biological or chemical agent determined from air samples of the airborne concentrations to which a worker is exposed in eight-hour day or a 40-hour week. 2 STEV: Short-term exposure value; is the maximum airborne concentration of a biological or chemical agent to which a worker is exposed in any 15-minute period determined from a single sample or a time-weighted average of sequential samples taken during such a period. 3 CEV: Ceiling exposure value; is the maximum airborne concentration of a biological or chemical agent to which a worker is exposed at any time. (D) Particulate matter containing no asbestos less than 1% crystalline silica. (E) A secondary limit of 5 (total dust) is recommended to deal with dusty operations where fibre counts are usually difficult to determine. Where both types of measurements are made simultaneously, the more restrictive limit should be used to assess the exposures. (F) Respirable fibres: length > 5um; aspect ratio _> 3 :1 as determined by the membrane filter method at X magnification (4-mm objective), using phase-contrast illumination. (P) Application of limit restricted to conditions in which there are negligible aerosol exposures. (L) means ACGIH recommends that exposure by all routes should be carefully controlled to levels as low as possible. Page 17 of 17