Site Information and assistance

On this page:

We are reviewing the Workplace exposure standards for airborne contaminants to ensure they are based on the highest quality, contemporary evidence and supported by a rigorous, scientific approach.

The draft evaluation reports for each chemical will be available for public comment. Chemicals will be released alphabetically throughout 2019 and 2020. Public comment will be open for each release for a period of four weeks on Engage.

The chemical release groups and the anticipated dates for opening public comment are outlined below. Please note these dates are indicative only. For the latest information please continue to visit Engage.

Schedule of releases

  • Silica, crystalline (respirable dust)
    • cristobalite
    • quartz
    • tridymite
    • tripoli
  • Coal (containing < 5 % quartz; respirable dust
  • Acetaldehyde
  • Acetic acid
  • Acetic anhydride
  • Acetone
  • Acetonitrile
  • Acetylsalicylic acid
  • Acrolein
  • Acrylamide
  • Acrylic acid
  • Acrylonitrile
  • Aldrin
  • Allyl alcohol
  • Allyl chloride
  • Allyl glycidyl ether (AGE)
  • Allyl propyl disulfide
  • α-Alumina
  • Aluminium
    • metal dust
    • welding fumes
    • oxide
    • alkyls (NOC
    • pyro powders
    • soluble salts
  • 2-Aminopyridine
  • Amitrole
  • Ammonia
  • Ammonium chloride (fume)
  • Ammonium perfluorooctanoate
  • Ammonium persulfate
  • Ammonium sulphamate
  • Amyl acetate (iso-, n-, sec- isomers)
  • Aniline and homologues
  • Anisidine (o-, p- isomers)
  • Antimony and compounds
  • Antimony trioxide
  • α-Naphthyl thiourea (ANTU)
  • Arsenic and soluble compounds
  • Arsine
  • Atrazine
  • Azinphos-methyl
  • Barium
    • sulphate
    • soluble compounds
  • Benomyl
  • Benzene
  • Benzidine *
  • 1H-Benzotriazole *
  • Benzoyl chloride *
  • Benzoyl peroxide
  • Benzyl chloride
  • Beryllium and compounds
  • Biphenyl
  • Bismuth telluride
  • Bismuth telluride, Se-doped
  • Bisphenol-A*
  • Bisphenol-A diglycidyl ether *
  • Boron oxide
  • Bromine pentafluoride
  • Bromoform
  • 1-Bromopropane *
  • 2-Butoxyethanol
  • Butyl acetate (n-, sec-, t- isomers)
  • n-Butyl alcohol
  • t-Butyl chromate
  • Butyl mercaptan
  • But-2-yne-1,4-diol *
  • Calcium hydroxide
  • Calcium silicate
  • Calcium sulphate

Deferred to Release 4

  • Bitumen fumes
  • Borates, tetra, sodium salts
    • anhydrous
    • decahydrate
    • pentahydrate
  • Boron tribromide
  • Boron trifluoride
  • Bromacil
  • Bromine
  • 1,3-Butadiene 
  • Butane
  • 2-Butoxyethyl acetate
  • n-Butyl acrylate
  • Butyl alcohol (sec-, t- isomers)
  • n-Butyl glycidyl ether (BGE)
  • n-Butyl lactate
  • Butylamine
  • o-sec-Butylphenol
  • p-t-Butyltoluene γ-butyrolactone *
  • γ-butyrolactone *
  • Cadmium and compounds
  • Caesium hydroxide
  • Calcium carbonate
  • Calcium cyanamide
  • Calcium oxide
  • Camphor, synthetic
  • e-Caprolactam (dust and vapour)
  • Caprolactam (dust)
  • Captafol
  • Captan
  • Carbaryl
  • Carbofuran
  • Carbon black
  • Carbon dioxide (including in coal mines)
  • Carbon disulphide
  • Carbon monoxide
  • Carbon tetrabromide
  • Carbonyl fluoride
  • Cellulose (paper fibre)
  • Chlordane
  • Chlorinated camphene
  • Chlorinated diphenyl oxide
  • Chlorine dioxide
  • Chlorine trifluoride
  • Chloroacetaldehyde
  • Chloroacetone
  • α-Chloroacetophenone
  • Chloroacetyl chloride
  • Chlorobromomethane
  • Chlorodifluoromethane
  • Chloroform
  • bis(Chloromethyl) ether
  • Chloromethyl methyl ether *
  • Chloropentafluoroethane
  • Chloropicrin
  • β-Chloroprene
  • 2-Chloropropionic acid
  • o-Chlorostyrene
  • Chlorosulphonic acid
  • o-Chlorotoluene
  • Clopidol

Deferred to Release 5

  • Carbon tetrachloride
  • Catechol
  • Chlorine
  • 1-Chloro-1-nitropropane
  • Chlorobenzene
  • o-Chlorobenzylidene malononitrile
  • Chlorpyrifos
  • Chromium
    • II) compounds
    • III) compounds
    • metal
    • (VI) compounds, certain water insoluble
    • (VI) compounds, water soluble
  • Chrysene *
  • Coal tar pitch volatiles (as benzene solubles)
  • Cobalt
    • carbonyl
    • hydrocarbonyl *
    • metal dust and fume
  • Copper
    • fume
    • dusts & mists
  • Cotton dust, raw
  • Cresol (all isomers)
  • Crotonaldehyde
  • Crufomate
  • Cumene
  • Cyanamide
  • Cyanides and cyanide salts *
  • Cyanogen
  • Cyanogen chloride
  • Cyclohexane
  • Cyclohexanol
  • Cyclohexanone
  • Cyclohexene
  • Cyclohexylamine
  • Cyclonite
  • Cyclopentadiene
  • Cyclopentane
  • Cyhexatin
  • 2,4-Dichlorophenoxyacetic acid (2,4-D)
  • Dichlorodiphenyl-trichloroethane (DDT)
  • Decaborane
  • Demeton
  • Diacetone alcohol
  • Diacetyl *
  • Diazinon
  • Diazomethane
  • Diborane
  • 1,2-Dibromo ethane *
  • Dibutyl phenyl phosphate
  • Dibutyl phosphate
  • Dibutyl phthalate
  • 2-N-Dibutylaminoethanol 
  • 1,1-Dichloro-1-nitroethane
  • 1,4-Dichloro-2-butene *
  • 1,3-Dichloro-5,5-dimethyl hydantoin
  • Dichloroacetic acid *
  • Dichloroacetylene
  • o-Dichlorobenzene
  • p-Dichlorobenzene
  • 3,3'-Dichlorobenzidine
  • Dichlorodifluoromethane
  • 1,1-Dichloroethane
  • Dichloroethyl ether
  • 1,2-Dichloroethylene
  • Dichlorofluoromethane
  • Dichloropropene
  • 2,2-Dichloropropionic acid
  • Dichlorotetrafluoroethane
  • Dichlorvos
  • Dicrotophos
  • Dicyclopentadiene
  • Dicyclopentadienyl iron
  • Dieldrin
  • Diesel engine emissions *
  • Diethanolamine 
  • Diethyl ketone
  • Diethyl phthalate
  • Diethyl sulfate *
  • Diethylamine
  • 2-Diethylaminoethanol
  • Diethylene glycol monobutyl ether *
  • Diethylene triamine
  • Difluorodibromomethane
  • Diglycidyl ether (DGE)
  • Diglycidyl resorcinol ether *
  • Diisobutyl ketone
  • Diisopropylamine
  • Dimethyl acetamide
  • Dimethyl carbomoyl chloride *
  • Dimethyl ether
  • Dimethyl sulfide *
  • Dimethyl sulphate
  • Dimethylamine
  • Dimethylaminoethanol
  • N,N-Dimethylaniline
  • N,N-Dimethylethylamine
  • Dimethylformamide
  • 1,1-Dimethylhydrazine
  • Dimethylphthalate
  • Dimethylsulfamoyl chloride
  • Dinitolmide
  • Dinitrobenzene (m-, o-, p- isomers)
  • Dinitro-o-cresol
  • Dinitrotoluene
  • 1,4-Dioxane
  • Dioxathion
  • 1,3-Dioxolane
  • Diphenylamine
  • Dipropyl ketone
  • Diquat
  • Di-sec-octyl phthalate
  • Disulfiram
  • Disulfoton
  • 2,6-Di-t-butyl-p-cresol
  • Diuron
  • Divinyl benzene
  • 2,6-Dimethylaniline (DMA)
  • Ethylenediaminetetraacetic acid (EDTA)
  • Emery (dust) 
  • Endosulfan
  • Endrin
  • Enflurane
  • Epichlorohydrin
  • EPN
  • Ethanolamine
  • Ethion
  • 2-Ethoxyethanol
  • 2-Ethoxyethyl acetate
  • Ethyl acetate
  • Ethyl acrylate
  • Ethyl alcohol
  • Ethyl benzene
  • Ethyl bromide
  • Ethyl butyl ketone
  • Ethyl chloride
  • Ethyl cyanoacrylate
  • Ethyl ether
  • Ethyl formate
  • Ethyl mercaptan
  • Ethyl silicate
  • Ethylamine
  • Ethylene
  • Ethylene chlorohydrin
  • Ethylene dichloride
  • Ethylene glycol (particulate and vapour)
  • Ethylene glycol dinitrate
  • Ethylene oxide
  • Ethylene thiourea
  • Ethylenediamine
  • Ethylenimine
  • 2-Ethylhexanoic acid
  • 2-Ethylhexanol
  • Ethylidene norbornene
  • N-Ethylmorpholine
  • Fenamiphos
  • Fensulfothion
  • Fenthion
  • Ferbam
  • Ferrovanadium dust
  • Flour dust (cereal) *
  • Fluorides
  • Fluorine
  • Fonofos
  • Formaldehyde
  • Formamide
  • Formic acid
  • Furfural
  • Furfuryl alcohol
  • Gallium arsenide *
  • Germanium tetrahydride
  • Glutaraldehyde
  • Glycerin mist 
  • Glycidol
  • Glyoxal *
  • Grain dust (oats, wheat, barley)
  • Graphite (respirable dust)
  • Hafnium
  • Halothane
  • Hard metals (containing cobalt and tungsten carbide) *
  • Heptachlor
  • Heptane (n-Heptane)
  • Hexachlorobenzene *
  • Hexachlorobutadiene
  • Hexachlorocyclopentadiene
  • Hexachloroethane
  • Hexachloronaphthalene
  • Hexafluoroacetone
  • Hexahydrophthalic anhydride *
  • Hexamethyl phosphoramide *
  • Hexamethylene diisocyanate
  • Hexane
    • n-Hexane
    • other isomers
  • sec-Hexyl acetate
  • Hexylene glycol
  • Hydrazine
  • Hydrogen bromide
  • Hydrogen chloride
  • Hydrogen cyanide 
  • Hydrogen fluoride
  • Hydrogen peroxide
  • Hydrogen selenide
  • Hydrogen sulphide
  • Hydroquinone
  • Hydroxyacetic acid butyl ester *
  • Hydroxypropyl acrylate *
  • 2-Hydroxypropyl acrylate
  • Indene
  • Indium and compounds
  • Iodine
  • Iodoform
  • Iron oxide fume
  • Iron pentacarbonyl
  • Iron salts, soluble
  • Isoamyl acetate
  • Isoamyl alcohol
  • Isobutyl acetate
  • Isobutyl alcohol
  • Isocyanates 
  • Isooctyl alcohol
  • Isopentane (2-methyl butane) *
  • Isophorone
  • Isophorone diisocyanate
  • Isopropoxyethanol
  • Isopropyl acetate
  • Isopropyl alcohol
  • Isopropyl ether
  • Isopropyl glycidyl ether (IGE)
  • Isopropylamine
  • N-Isopropylaniline
  • Kaolin
  • Ketene
  • Lead arsenate
  • Lead chromate
  • Lindane
  • Lithium hydride
  • Liquified petroleum gas (LPG)
  • Magnesite 
  • Magnesium oxide (fume
  • Malathion
  • Maleic anhydride
  • Manganese cyclopenta-dienyl tricarbonyl
  • Manganese (dust, compounds and fume)
  • Man-made mineral fibres (fibrous dust) *
  • Man-made vitreous (silicate) fibres (MMVF)
  • Mercury
    • alkyl compounds
    • aryl compounds
    • elemental vapour
    • inorganic divalent compounds
    • inorganic monovalent compounds
  • Mesityl oxide
  • Methacrylic acid
  • Methomyl
  • 1-Methoxy-2-propanol acetate
  • Methoxychlor
  • 2-Methoxyethanol
  • 2-Methoxyethyl acetate
  • (2-Methoxymethylethoxy) propanol
  • 4-Methoxyphenol
  • Methyl 2-cyanoacrylate
  • Methyl acetate
  • Methyl acetylene
  • Methyl acetylene-propadiene mixture (MAPP)
  • Methyl acrylate
  • Methyl alcohol
  • N-Methyl aniline
  • Methyl bromide
  • Methyl chloride
  • Methyl demeton
  • Methyl ethyl ketone (MEK)
  • Methyl ethyl ketone peroxide
  • Methyl formate
  • Methyl hydrazine
  • Methyl iodide
  • Methyl isoamyl ketone
  • Methyl isobutyl carbinol
  • Methyl isobutyl ketone
  • Methyl isocyanate
  • Methyl isopropyl ketone
  • Methyl mercaptan
  • Methyl methacrylate
  • Methyl n-amyl ketone
  • Methyl n-butyl ketone
  • Methyl parathion
  • Methyl propyl ketone
  • Methyl silicate
  • α-Methyl styrene
  • 1-Methyl-2-pyrrolidone
  • Methylacrylonitrile
  • Methylal
  • Methylamine
  • 2-Methylbutyl acetate *
  • Methylcyclohexane
  • Methylcyclohexanol
  • o-Methylcyclohexanone
  • Methylcyclopentadienyl manganese tricarbonyl
  • 4,4’-Methylene bis(2-chloroaniline)
  • Methylene bis(4-cyclo-hexylisocyanate)
  • Methylene bisphenyl isocyanate (MDI)
  • Methylene chloride
  • 4,4'-Methylene dianiline
  • 5-Methylheptan-3-one
  • Methyl-tert butyl ether
  • Methyl vinyl ketone *
  • Metribuzin
  • Mevinphos
  • Mica
  • Mineral turpentine
  • Molybdenum (soluble and insoluble compounds)
  • Monochloroacetic acid
  • Monocrotophos
  • Morpholine
  • Naled
  • Naphthalene
  • Natural rubber latex *
  • Neopentane (2,2-Dimethylpropane) *
  • Nickel carbonyl
  • Nickel dichloride
  • Nickel dinitrate
  • Nickel
    • insoluble *
    • metal
    • powder
    • soluble compounds
    • sulphide roasting (fume and dust)
    • salt, nitric acid
  • Nicotine
  • Nitrapyrin
  • Nitric acid
  • Nitric oxide
  • 5-Nitro-o-toluidine *
  • p-Nitroaniline
  • Nitrobenzene
  • p-Nitrochlorobenzene
  • Nitroethane
  • Nitrogen dioxide
  • Nitrogen trifluoride
  • Nitroglycerine (NG)
  • Nitromethane
  • Nitropropane (1-, 2-)
  • N-Nitrosodimethylamine *
  • Nitrotoluene (2-, 3-, 4-)
  • Nitrous oxide
  • Nonane
  • Octachloronaphthalene
  • Octane
  • Oil mist, refined mineral
  • Osmium tetroxide
  • Oxalic acid
  • 2,2'-Oxybis(ethanol)
  • Oxygen difluoride
  • Ozone
  • Paraffin wax (fume)
  • Paraquat (respirable)
  • Parathion
  • Polychlorinated biphenyl (PCBs; 42%, 54% chlorine)
  • Pentaborane
  • Pentachloronaphthalene
  • Pentachloronitrobenzene
  • Pentachlorophenol
  • Pentaerythritol
  • Pentane
  • 2,3-Pentanedione (Acetyl propionyl) *
  • 2,4-Pentanedione *
  • Peracetic acid *
  • Perchloroethylene
  • Perchloromethyl mercaptan
  • Perchloryl fluoride
  • Perfluoroisobutylene
  • Perfluorooctanoic acid (PFOA) and its inorganic salts *
  • Perlite dust 
  • Petrol (gasoline)
  • Phenol
  • Phenothiazine
  • Phenyl ether (vapour)
  • Phenyl glycidyl ether (PGE)
  • Phenyl isocyanate *
  • Phenyl mercaptan *
  • N-Phenyl-2-naphthylamine *
  • Phenylenediamine (m-, o-, p- isomers)
  • Phenylhydrazine
  • Phenylphosphine
  • Phorate
  • Phosgene
  • Phosphine
  • Phosphoric acid
  • Phosphorus
    • yellow
    • oxychloride
    • pentachloride
    • pentasulphide
    • trichloride
  • Phthalic anhydrid
  • m-Phthalodinitrile
  • Picloram
  • Picric acid
  • Pindone
  • Piperazine (dihydrochloride and salts)
  • Piperidine
  • Platinum (metal and soluble salts)
  • Polycyclic aromatic hydrocarbon (PAH) mixture when containing benzo[a]pyrene *
  • Polyvinyl chloride *
  • Portland cement
  • Potassium hydroxide
  • Potassium persulfate
  • Propane-1,2-diol (vapour and particulates)
  • Propane sultone *
  • Propargyl alcohol
  • β-Propiolactone
  • Propionic acid
  • Propoxur
  • Propranolol
  • n-Propyl acetate
  • Propyl alcohol
  • n-Propyl nitrate
  • Propylene dichloride
  • Propylene glycol dinitrate
  • Propylene glycol monomethyl ether
  • Propylene imine
  • Propylene oxide
  • Pyrethrum
  • Pyridine
  • Quinone
  • Resorcinol
  • Rhodium
  • Ronnel
  • Rosin core solder pyrolysis products (as formaldehyde)
  • Rotenone
  • Rouge dust
  • Selenium compounds (excluding hydrogen selenide)
  • Selenium hexafluoride
  • Sesone
  • Silica – amorphous
    • diatomaceous earth (uncalcined)
    • fume (thermally generated; respirable dust)
    • fumed silica (respirable dust)
    • precipitated silica
    • silica gel
    • fused
  • Silicon
  • Silicon carbide
  • Silicon tetrahydride
  • Silver (metal and soluble compounds)
  • Soapstone (respirable dust)
  • Sodium azide
  • Sodium bisulphite
  • Sodium fluoroacetate
  • Sodium hydroxide
  • Sodium metabisulphite
  • Sodium persulfate
  • Starch
  • Stearates
  • Stibine
  • Strychnine
  • Styrene, monomer
  • Subtilisins (proteolytic enzymes as 100% pure crystalline enzyme)
  • Sucrose 
  • Sulfotep
  • Sulphur dioxide
  • Sulphur hexafluoride
  • Sulphur monochloride
  • Sulphur pentafluoride
  • Sulphur tetrafluoride
  • Sulphuric acid
  • Sulphuryl fluoride
  • Sulprofos
  • Synthetic mineral fibres (SMF)
  • 2,4,5-Trichlorophenoxyacetic acid (2,4,5-T)
  • Talc (containing no asbestos fibres)
  • Tantalum (metal and oxide dusts)
  • Tellurium and compounds
  • Tellurium hexafluoride
  • Temephos
  • TEPP
  • Terephthalic acid *
  • Terphenyls
  • 1,1,2,2-Tetrabromoethane
  • 1,1,2,2-Tetrachloro-1,2-difluoroethane
  • 1,1,1,2-Tetrachloro-2,2-difluoroethane
  • 1,1,2,2-Tetrachloroethane
  • Tetrachloronaphthalene
  • Tetraethyl lead
  • 1,1,1,2-Tetrafluoroethane
  • Tetrafluoroethylene *
  • Tetrahydrofuran
  • Tetramethyl lead
  • Tetramethyl succinonitrile
  • Tetranitromethane
  • Tetrasodium pyrophosphate
  • Tetryl
  • Thallium (soluble compounds)
  • 4,4'-Thiobis (6-t-butyl-m-cresol)
  • Thioglycolic acid
  • Thionyl chloride
  • Thiram
  • Tin,
    • metal
    • organic compounds
  • Tin oxide and inorganic compounds (except Stannane)
  • Titanium dioxide
  • o-Tolidine *
  • Toluene
  • Toluene-2,4-diisocyanate (TDI)
  • Toluidine (m-, o-, p- isomers)
  • Tributyl phosphate
  • 1,1,2-Trichloro-1,2,2-trifluoroethane
  • Trichloroacetic acid
  • 1,2,4-Trichlorobenzene
  • 1,1,1-Trichloroethane
  • 1,1,2-Trichloroethane
  • Trichloroethylene
  • Trichlorofluoromethane
  • Trichloronaphthalene
  • 1,2,3-Trichloropropane
  • Triethanolamine
  • Triethylamine
  • Trifluorobromomethane
  • Triglycidylisocyanurate (TGIC)
  • Trimellitic anhydride
  • Trimethylamine
  • 2,4,5-Trimethylaniline *
  • Trimethylbenzene (including 1,2,3-, 1,2,4-, 1,3,5-)
  • Trimethyl phosphite
  • 2,4,6-Trinitrotoluene (TNT)
  • Triorthocresyl phosphate
  • Triphenyl amine
  • Triphenyl phosphat
  • Tungsten (soluble and insoluble compounds)
  • Turpentine (wood)
  • Uranium (soluble and insoluble compounds)
  • Urethane  *
  • n-Valeraldehyde
  • Vanadium (respirable dust and fume)
  • Vegetable oil mists
  • Vinyl acetate
  • Vinyl bromide
  • Vinyl chloride, monomer
  • 4-Vinyl cyclohexene *
  • Vinyl cyclohexene dioxide
  • N-Vinyl-2-pyrrolidone *
  • Vinyl toluene
  • Vinylidene chloride
  • Vinylidene fluoride *
  • Warfarin
  • Welding fumes (NOC)
  • White spirits (including Type 3 *)
  • Wood dust (soft and hard)
  • Xylene (o-, m-, p- isomers)
  • m-Xylene-α,α'-diamine
  • Xylidine
  • Yttrium (metal and compounds)
  • Zinc chloride (fume)
  • Zinc chromates
  • Zinc oxide (dust and fume)
  • Zirconium compounds  

*Chemicals proposed for addition.

Contribute to the review

To stay up-to-date with the review into workplace exposure standards, or take part in consultation opportunities, subscribe to the chemical exposure standards mailing list.

If you have any further questions about workplace exposure standards, email WES@swa.gov.au.

This site is undergoing constant refinement. If you have noticed something that needs attention or have ideas for the site please let us know.

Last modified on Thursday 21 November 2019 [10816|92901]