WEL Compliance Tool

Does Your Workplace Know Its New Exposure Limits?

From 1 December 2026, Australia’s new Workplace Exposure Limits (WEL) replace the old Workplace Exposure Standards (WES). Use this tool to find substances relevant to your site and check what has changed.

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Limits reduced
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New substances
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NTGCs: no safe limit
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NTGCs: No Safe Limit
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⬇ Reduced limit
✦ New addition
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☠ NTGC: no safe limit
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Check WEL values against your current exposure controls

  • 1-Bromopropane

    ✦ New

    Current WES: No WES | New WEL: TWA: 0.1 ppm / 0.5 mg/m³ | Industry: general

  • 1,3-Dioxolane

    ✦ New

    Current WES: No WES | New WEL: TWA: 20 ppm / 61 mg/m³ | Industry: general

  • 2-Ethylhexanoic acid

    ✦ New

    Current WES: No WES | New WEL: TWA: 5 mg/m³ | Industry: general

  • 2-Ethylhexanol

    ✦ New

    Current WES: No WES | New WEL: TWA: 1 ppm / 5.33 mg/m³ | Industry: general

  • 2-Methoxyethanol

    ⬇ Reduced

    Current WES: TWA: 5 ppm | New WEL: TWA: 0.1 ppm | Industry: general

  • 2-Methoxyethyl acetate

    ⬇ Reduced

    Current WES: TWA: 5 ppm | New WEL: TWA: 0.1 ppm | Industry: manufacturing

  • 2-Methylbutyl acetate

    ✦ New

    Current WES: No WES | New WEL: TWA: 50 ppm; STEL: 100 ppm | Industry: manufacturing

  • 2-N-Dibutylaminoethanol

    ⬇ Reduced

    Current WES: TWA: 2 ppm | New WEL: TWA: 0.5 ppm | Industry: general

  • 2,3-Pentanedione

    ✦ New

    Current WES: No WES | New WEL: TWA: 0.02 ppm / 0.083 mg/m³ | Industry: food

  • 2,4-Pentanedione

    ✦ New

    Current WES: No WES | New WEL: TWA: 25 ppm / 102 mg/m³ | Industry: general

  • 2,4,6-Trinitrotoluene (TNT)

    ⬇ Reduced

    Current WES: TWA: 0.5 mg/m³ | New WEL: TWA: 0.1 mg/m³ | Industry: manufacturing

  • Acetic anhydride

    ⬇ Reduced

    Current WES: Peak: 5 ppm | New WEL: TWA: 0.5 ppm; STEL: 1 ppm | Industry: general

  • Acetone

    ⬇ Reduced

    Current WES: TWA: 500 ppm; STEL: 1000 ppm | New WEL: TWA: 250 ppm; STEL: 500 ppm | Industry: general

  • Acetonitrile

    ⬇ Reduced

    Current WES: TWA: 40 ppm; STEL: 60 ppm | New WEL: TWA: 20 ppm | Industry: general

  • Acrolein

    ⬇ Reduced

    Current WES: TWA: 0.1 ppm; STEL: 0.3 ppm | New WEL: TWA: 0.02 ppm; STEL: 0.05 ppm | Industry: general

  • Acrylic acid

    ⬆ Increased

    Current WES: TWA: 2 ppm | New WEL: TWA: 10 ppm | Industry: general

  • Allyl alcohol

    ⬇ Reduced

    Current WES: TWA: 2 ppm; STEL: 4 ppm | New WEL: TWA: 1 ppm; STEL: 4 ppm | Industry: manufacturing

  • Ammonia

    ⬇ Reduced

    Current WES: TWA: 25 ppm; STEL: 35 ppm | New WEL: TWA: 20 ppm; STEL: 35 ppm | Industry: manufacturing

  • Ammonium perfluorooctanoate

    ⬇ Reduced

    Current WES: TWA: 0.1 mg/m³ | New WEL: TWA: 0.01 mg/m³ | Industry: general

  • Aniline and homologues

    ⬇ Reduced

    Current WES: TWA: 2 ppm | New WEL: TWA: 0.5 ppm | Industry: general

  • Arsenic and compounds (as As)

    ⬇ Reduced

    Current WES: TWA: 0.05 mg/m³ | New WEL: TWA: 0.01 mg/m³ | Industry: general

  • Barium sulfate (inhalable)

    ⬇ Reduced

    Current WES: TWA: 10 mg/m³ | New WEL: TWA: 4 mg/m³ | Industry: general

  • Barium sulfate (respirable)

    ✦ New

    Current WES: No WES | New WEL: TWA: 1.35 mg/m³ | Industry: general

  • Benomyl

    ⬇ Reduced

    Current WES: TWA: 0.84 ppm | New WEL: TWA: 0.08 ppm | Industry: general

  • Benzene

    ⬇ Reduced

    Current WES: TWA: 1 ppm; STEL: 5 ppm | New WEL: TWA: 0.05 ppm | Industry: manufacturing

  • Beryllium and compounds

    ⬇ Reduced

    Current WES: TWA: 0.002 mg/m³ | New WEL: TWA: 0.00002 mg/m³; STEL: 0.0002 mg/m³ | Industry: welding

  • Bisphenol-A

    ✦ New

    Current WES: No WES | New WEL: TWA: 2 mg/m³ | Industry: general

  • Cadmium and compounds (as Cd)

    ⬇ Reduced

    Current WES: TWA: 0.01 mg/m³ | New WEL: TWA: 0.001 mg/m³ | Industry: welding

  • Calcium hydroxide

    ⬇ Reduced

    Current WES: TWA: 5 mg/m³ | New WEL: TWA: 1 mg/m³; STEL: 4 mg/m³ | Industry: general

  • Calcium oxide

    ⬇ Reduced

    Current WES: TWA: 2 mg/m³ | New WEL: TWA: 1 mg/m³ | Industry: general

  • Calcium sulfate

    ⬇ Reduced

    Current WES: TWA: 10 mg/m³ | New WEL: Renamed; TWA: 1.5 mg/m³ | Industry: general

  • Carbaryl

    ⬇ Reduced

    Current WES: TWA: 5 mg/m³ | New WEL: TWA: 0.5 mg/m³ | Industry: general

  • Carbon disulfide

    ⬇ Reduced

    Current WES: TWA: 10 ppm | New WEL: TWA: 1 ppm | Industry: general

  • Carbon monoxide

    ⬇ Reduced

    Current WES: TWA: 30 ppm | New WEL: TWA: 20 ppm | Industry: general

  • Carbon tetrachloride

    ↔ Renamed

    Current WES: TWA: 0.1 ppm | New WEL: TWA: 0.1 ppm; STEL: 5 ppm | Industry: manufacturing

  • Chlorine

    ⬇ Reduced

    Current WES: TWA: 1 ppm; STEL: 3 ppm | New WEL: TWA: 0.5 ppm; STEL: 1 ppm | Industry: manufacturing

  • Chlorobenzene

    ⬇ Reduced

    Current WES: TWA: 10 ppm | New WEL: TWA: 5 ppm | Industry: manufacturing

  • Chloroform

    ⬇ Reduced

    Current WES: TWA: 2 ppm | New WEL: TWA: 0.5 ppm | Industry: manufacturing

  • Chlorpyrifos

    ⬇ Reduced

    Current WES: TWA: 0.2 mg/m³ | New WEL: TWA: 0.1 mg/m³ | Industry: agriculture

  • Copper dusts and mists

    ↔ Renamed

    Current WES: TWA: 1 mg/m³ | New WEL: TWA: 1 mg/m³ (inhalable); 0.2 mg/m³ (respirable) | Industry: welding

  • Copper fumes

    ⬇ Reduced

    Current WES: TWA: 0.2 mg/m³ | New WEL: TWA: 0.01 mg/m³ | Industry: welding

  • Cyclohexane

    ↔ Renamed

    Current WES: TWA: 100 ppm; STEL: 300 ppm | New WEL: TWA: 100 ppm | Industry: general

  • Cyclohexanone

    ⬇ Reduced

    Current WES: TWA: 25 ppm | New WEL: TWA: 10 ppm; STEL: 20 ppm | Industry: general

  • Cyclohexylamine

    ⬇ Reduced

    Current WES: TWA: 10 ppm | New WEL: TWA: 2 ppm | Industry: general

  • Diacetyl

    ✦ New

    Current WES: No WES | New WEL: TWA: 0.01 ppm / 0.04 mg/m³; STEL: 0.02 ppm | Industry: food

  • Diazinon

    ⬇ Reduced

    Current WES: TWA: 0.1 mg/m³ | New WEL: TWA: 0.01 mg/m³ | Industry: agriculture

  • Dichlorvos (DDVP)

    ⬇ Reduced

    Current WES: TWA: 0.1 ppm | New WEL: TWA: 0.01 ppm | Industry: agriculture

  • Diesel particulate matter (as respirable elemental carbon)

    ✦ New

    Current WES: No WES | New WEL: TWA: 0.01 mg/m³ | Industry: welding

  • Diethanolamine

    ⬇ Reduced

    Current WES: TWA: 3 ppm | New WEL: TWA: 0.11 ppm | Industry: general

  • Diethylamine

    ⬇ Reduced

    Current WES: TWA: 10 ppm; STEL: 25 ppm | New WEL: TWA: 2 ppm; STEL: 10 ppm | Industry: general

  • Dimethylformamide

    ⬇ Reduced

    Current WES: TWA: 10 ppm | New WEL: TWA: 5 ppm | Industry: general

  • Ethyl acrylate

    ⬇ Reduced

    Current WES: Peak: 5 ppm | New WEL: TWA: 2 ppm; STEL: 5 ppm | Industry: manufacturing

  • Ethyl alcohol

    ⬇ Reduced

    Current WES: TWA: 1000 ppm | New WEL: TWA: 200 ppm; STEL: 800 ppm | Industry: manufacturing

  • Ethyl benzene

    ⬇ Reduced

    Current WES: TWA: 100 ppm; STEL: 125 ppm | New WEL: TWA: 20 ppm | Industry: manufacturing

  • Ethyl chloride

    ⬇ Reduced

    Current WES: TWA: 1000 ppm | New WEL: TWA: 100 ppm | Industry: manufacturing

  • Fenamiphos

    ⬇ Reduced

    Current WES: TWA: 0.1 mg/m³ | New WEL: TWA: 0.05 mg/m³ | Industry: agriculture

  • Flour (cereal) dust

    ✦ New

    Current WES: No WES | New WEL: TWA: 0.5 mg/m³ | Industry: construction

  • Formaldehyde

    ⬇ Reduced

    Current WES: TWA: 1 ppm; STEL: 2 ppm | New WEL: TWA: 0.1 ppm; STEL: 0.3 ppm | Industry: general

  • Furfural

    ⬇ Reduced

    Current WES: TWA: 2 ppm | New WEL: TWA: 0.2 ppm | Industry: general

  • Furfuryl alcohol

    ⬇ Reduced

    Current WES: TWA: 10 ppm; STEL: 15 ppm | New WEL: TWA: 0.2 ppm | Industry: manufacturing

  • Glutaraldehyde

    ⬇ Reduced

    Current WES: Peak: 0.1 ppm | New WEL: Peak: 0.05 ppm | Industry: manufacturing

  • Grain dust (oats, wheat, barley)

    ⬇ Reduced

    Current WES: TWA: 4 mg/m³ | New WEL: TWA: 1.5 mg/m³ | Industry: construction

  • Hydrogen chloride

    ⬇ Reduced

    Current WES: Peak: 5 ppm | New WEL: Peak: 2 ppm | Industry: manufacturing

  • Hydrogen cyanide

    ⬇ Reduced

    Current WES: TWA: 10 ppm; STEL: 10 ppm | New WEL: TWA: 0.9 ppm; STEL: 4.5 ppm | Industry: general

  • Hydrogen fluoride (as F)

    ⬇ Reduced

    Current WES: Peak: 3 ppm | New WEL: TWA: 0.5 ppm; Peak: 2 ppm | Industry: general

  • Hydrogen sulfide

    ⬇ Reduced

    Current WES: TWA: 10 ppm; STEL: 15 ppm | New WEL: TWA: 1 ppm; STEL: 5 ppm | Industry: general

  • Isopropyl alcohol

    ⬇ Reduced

    Current WES: TWA: 400 ppm; STEL: 500 ppm | New WEL: TWA: 200 ppm; STEL: 400 ppm | Industry: manufacturing

  • Malathion

    ⬇ Reduced

    Current WES: TWA: 10 mg/m³ | New WEL: TWA: 1 mg/m³ | Industry: agriculture

  • Maleic anhydride

    ⬇ Reduced

    Current WES: TWA: 0.25 ppm | New WEL: TWA: 0.0025 ppm | Industry: general

  • Manganese dust/fume and compounds (as Mn)

    ⬇ Reduced

    Current WES: TWA: 1 mg/m³ | New WEL: Inhalable TWA: 0.1 mg/m³; Respirable TWA: 0.02 mg/m³ | Industry: welding

  • Methomyl

    ⬇ Reduced

    Current WES: TWA: 2.5 mg/m³ | New WEL: TWA: 0.2 mg/m³ | Industry: agriculture

  • Methyl acrylate

    ⬇ Reduced

    Current WES: TWA: 10 ppm | New WEL: TWA: 2 ppm | Industry: manufacturing

  • Methyl alcohol

    ⬇ Reduced

    Current WES: TWA: 200 ppm; STEL: 250 ppm | New WEL: TWA: 100 ppm | Industry: manufacturing

  • Methyl bromide

    ⬇ Reduced

    Current WES: TWA: 5 ppm | New WEL: TWA: 1 ppm | Industry: general

  • Methyl chloride

    ⬇ Reduced

    Current WES: TWA: 50 ppm; STEL: 100 ppm | New WEL: TWA: 20 ppm; STEL: 80 ppm | Industry: manufacturing

  • Methyl ethyl ketone (MEK)

    ⬆ Increased

    Current WES: TWA: 150 ppm; STEL: 300 ppm | New WEL: TWA: 200 ppm; STEL: 300 ppm | Industry: manufacturing

  • Methyl isobutyl ketone

    ⬇ Reduced

    Current WES: TWA: 50 ppm; STEL: 75 ppm | New WEL: TWA: 20 ppm; STEL: 75 ppm | Industry: manufacturing

  • Methylene bisphenyl isocyanate (MDI)

    ↔ Renamed

    Current WES: See Isocyanates | New WEL: Renamed: Isocyanates (poly-) as NCO; TWA: 0.02 mg/m³; STEL: 0.07 mg/m³ | Industry: manufacturing

  • Mineral turpentine

    ⬇ Reduced

    Current WES: TWA: 480 mg/m³ | New WEL: Renamed: Mineral spirits; TWA: 296 mg/m³ | Industry: general

  • Molybdenum, soluble compounds (as Mo)

    ⬇ Reduced

    Current WES: TWA: 5 mg/m³ | New WEL: TWA: 0.5 mg/m³ | Industry: welding

  • Nitrogen dioxide

    ⬇ Reduced

    Current WES: TWA: 3 ppm; STEL: 5 ppm | New WEL: TWA: 0.5 ppm; STEL: 1 ppm | Industry: general

  • Phenyl isocyanate

    ✦ New

    Current WES: No WES | New WEL: TWA: 0.005 ppm / 0.024 mg/m³ | Industry: manufacturing

  • Polyvinyl chloride (respirable dust)

    ✦ New

    Current WES: No WES | New WEL: TWA: 1 mg/m³ | Industry: manufacturing

  • Respirable crystalline silica (RCS)

    ↔ Renamed

    Current WES: TWA: 0.05 mg/m³ | New WEL: TWA: 0.05 mg/m³ (enforced as WEL) | Industry: construction

  • Silicon carbide (non-fibrous, inhalable)

    ✦ New

    Current WES: No WES | New WEL: TWA: 10 mg/m³ | Industry: construction

  • Titanium dioxide

    ⬇ Reduced

    Current WES: TWA: 10 mg/m³ | New WEL: TWA: 1.2 mg/m³ (inhalable); 0.3 mg/m³ (respirable) | Industry: general

  • Tungsten, metal and compounds (as W)

    ✦ New

    Current WES: No WES | New WEL: TWA: 3 mg/m³ | Industry: welding

  • Welding fumes (not otherwise classified)

    ⬇ Reduced

    Current WES: TWA: 5 mg/m³ | New WEL: TWA: 1 mg/m³ | Industry: welding

  • Wood dust

    ⬇ Reduced

    Current WES: TWA: 1 mg/m³ | New WEL: TWA: 0.5 mg/m³ (hardwood); 1 mg/m³ (softwood) | Industry: construction

  • Chromium VI compounds (inc. zinc chromates)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: welding

  • Allyl chloride

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: manufacturing

  • Coal tar pitch volatiles (as benzene solubles)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: manufacturing

  • Ethylene dichloride (1,2-Dichloroethane)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: manufacturing

  • 4,4'-Methylene bis(2-chloroaniline) MOCA

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: manufacturing

  • Vinyl chloride monomer (Chloroethylene)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: manufacturing

  • Acrylamide

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • Acrylonitrile (Vinyl cyanide)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • Benzidine

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • 1,3-Butadiene

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • 1,2-Dibromoethane (ethylene dibromide)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • Dimethyl sulfate

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • Ethylene oxide (Oxirane)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • Hydrazine

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • Lead chromate (as Cr)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • PAH mixture containing benzo[a]pyrene

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

  • Vinyl bromide (Bromoethylene)

    ☠ NTGC

    Current WES: WES listed (see current WES) | New WEL: No WEL. NTGC: eliminate, substitute or minimise | Industry: general

Reduced
Limit tightened
New
Newly listed
Increased
Limit relaxed
Renamed
Name/notation changed
NTGC
No safe limit

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This tool is for general informational purposes only, based on publicly available data from Safe Work Australia. Always verify values against the official Safe Work Australia WEL list and relevant legislation before making compliance decisions.