On 1st December 2026, Australia will implement one of the most significant updates to occupational exposure standards in more than a decade.
For HSE Managers, WHS professionals and operational leaders, these changes represent far more than a simple change in terminology from Workplace Exposure Standards (WES) to Workplace Exposure Limits (WEL). They reinforce a growing expectation that organisations identify and manage all significant exposure pathways – including dermal absorption – not just inhalation.
For industries such as emergency services, mining, foundries, heavy manufacturing, utilities, oil and gas and aviation, this places greater emphasis on contamination control, effective decontamination procedures and reducing exposure wherever reasonably practicable.
Here’s what you need to know.
The Regulatory Shift: From WES to WEL
From 1st December 2026, Workplace Exposure Standards will become Workplace Exposure Limits (WELs).
While many exposure values remain unchanged, the new framework strengthens expectations around how hazardous substances are managed and reinforces that exposure limits are values that must not be exceeded.
One of the most significant developments is the introduction of DSEN (Dermal Sensitisation) and RSEN (Respiratory Sensitisation) notations.
For substances carrying a DSEN notation, inhalation is no longer the only exposure pathway requiring attention. Organisations may also need to demonstrate that skin exposure risks have been identified, assessed and appropriately controlled.
This means that effective respiratory protection alone may not be enough.
PAHs: Understanding the “No Safe Limit” Approach
One of the most significant updates affects Polycyclic Aromatic Hydrocarbons (PAHs).
Safe Work Australia identifies PAH mixtures containing Benzo[a]pyrene as Non-Threshold Genotoxic Carcinogens (NTGCs).
Unlike many hazardous substances, these contaminants have no recognised safe level of exposure.
Instead, organisations are expected to reduce worker exposure as far as reasonably practicable.
This is particularly relevant for workers exposed to:
- Diesel exhaust
- Fire soot
- Combustion residues
- Industrial oils
- Coal tar products
- Heavy industrial contamination
For many organisations, the focus is no longer simply measuring airborne concentrations – it is reducing contamination before it can continue to expose workers through skin contact.
Five Immediate Actions for HSE Managers
Preparing for the new Workplace Exposure Limits doesn’t require reinventing your entire safety system—but it does require reviewing whether your existing controls address dermal exposure.
1. Review Your Chemical Register
Identify substances that carry DSEN or RSEN notations.
Where dermal exposure is identified, ensure your existing control measures adequately address skin contamination – not just airborne exposure.
2. Review Your Decontamination Procedures
Ask yourself:
- How quickly can workers remove contamination?
- Are they waiting until the end of shift?
- Is contamination remaining on skin during meal breaks or travel home?
For many contaminants, the most effective opportunity for removal is immediately after exposure.
3. Look Beyond Air Monitoring
Air monitoring remains an important part of workplace health monitoring – but it doesn’t measure contaminants that remain on workers’ skin.
Many carcinogenic compounds, including PAHs found in diesel exhaust and fire residues, can continue to present exposure risks after workers leave the hazard zone.
Effective decontamination should form part of your overall exposure control strategy.
4. Validate Your Control Measures
Not every cleaning product is designed to remove hazardous industrial contamination.
Independent testing conducted by professors at Manchester Metropolitan University demonstrated De-Wipe’s ability to remove more than 91% of Benzo[a]pyrene—one of the most hazardous PAHs—from contaminated skin following exposure.
When selecting exposure controls, look for products supported by independent scientific evidence rather than general cleaning claims.
5. Train Workers on Dermal Exposure
Even the best products cannot protect workers if they are used incorrectly—or not used at all.
Ensure workers understand:
- why dermal contamination matters
- when to decontaminate
- which areas require cleaning
- why immediate removal significantly reduces ongoing exposure.
Why Organisations Are Choosing De-Wipe
Effective exposure control requires practical solutions that workers will actually use.
De-Wipe has been developed specifically for occupational decontamination in high-risk industries.
Scientifically Validated
Independent testing by Manchester Metropolitan University demonstrated significant removal of hazardous PAHs, including more than 91% removal of Benzo[a]pyrene from contaminated skin in a *single pass.
Dermatologically Tested
Rated “Excellent” by Dermatest, ensuring De-Wipe is suitable for repeated use on the hands, face, neck and other exposed skin without causing irritation.
Complete Decontamination System
From Large Individual Wipes (30cm x 20cm) individually packaged or via 40 wipe MultiPacks, giant XL Wipes/towels (60cm x 30cm) right through to Equipment Wipes, Equipment Wash, and Hand, Hair & Body Wash, De-Wipe provides a complete contamination management system for personnel and equipment.
Supporting Sustainable Safety
Modern safety programmes increasingly balance worker protection with environmental responsibility.
Unlike many conventional industrial wipes, De-Wipe products are manufactured using 100% biodegradable materials, helping organisations strengthen both their WHS and ESG commitments without compromising performance.
Protecting workers should never come at the expense of protecting the environment.
Your 2026 Workplace Exposure Checklist
Before 1st December 2026, ask yourself:
✅ Have we reviewed chemicals carrying DSEN or RSEN notations?
✅ Do our decontamination procedures address skin exposure?
✅ Can workers decontaminate immediately after exposure?
✅ Are our cleaning products scientifically validated?
✅ Have workers been trained on dermal exposure risks?
If you cannot confidently answer “Yes” to every question, now is the time to review your exposure control programme.
Ready for December 2026?
The organisations best prepared for the new Workplace Exposure Limits won’t be the ones reacting after the deadline—they’ll be the ones implementing practical exposure controls today.
Whether you’re reviewing your chemical register, updating your decontamination procedures or looking to strengthen your dermal exposure controls, we’re here to help.
Request a complimentary Decontamination Review or Book an On-Site Trial to see how De-Wipe can support your workplace exposure management programme.
