COSHH Training : Complete Guide to Controlling Hazardous Substances at Work

When Fatima, a facilities manager at a Dubai manufacturing plant, discovered that three of her workers had developed respiratory issues within the same month, she knew something was seriously wrong. The investigation revealed inadequate control measures for chemical vapors in the production area—a clear violation of hazardous substance regulations that could have been prevented with proper COSHH training and assessment.

Fatima’s experience isn’t unique. Across the UAE and globally, thousands of workers face daily exposure to hazardous substances that can cause anything from minor skin irritation to life-threatening diseases. The difference between safe operations and workplace disasters often comes down to one thing: proper understanding and implementation of COSHH principles.

Whether you’re a safety manager, employer, supervisor, or worker handling chemicals, cleaning products, dust, fumes, or biological agents, this guide will help you understand what COSHH means, why it matters, and how to implement effective control measures.

What is COSHH?

COSHH stands for** Control of Substances Hazardous to Health**.

Originally introduced in the UK (1988, revised 2002), COSHH provides a structured approach to managing hazardous substances in the workplace. Its principles are widely adopted globally and align with UAE occupational health and safety regulations.

COSHH Full Form
C – Control
O – Of
S – Substances
H – Hazardous
H – to Health

What COSHH Involves

• Identifying hazardous substances
• Assessing risks
• Implementing control measures
• Monitoring exposure
• Reviewing controls regularly
• Why COSHH Matters

Exposure to hazardous substances can lead to:

• Occupational asthma
• Dermatitis
• Occupational cancers
• Respiratory diseases
• Poisoning
• Impact on Businesses
• Financial loss (medical costs, downtime)
• Legal penalties
• Reputational damage
• Operational disruption

The 8 Principles of COSHH

1. Identify Hazardous Substances
   Create inventory
   Collect Safety Data Sheets (SDS)

2. Assess the Risks
   Who is exposed?
   How severe is the risk?

3. Control Exposure (Hierarchy)
   Elimination
   Substitution
   Engineering controls
   Administrative controls
   PPE

4. Maintain Control Measures
   Train workers
   Inspect systems
   Maintain equipment

5. Monitor Exposure
   Air sampling
   Health checks

6. Provide Training
   Hazard awareness
   Safe handling
   Emergency response

7. Plan for Emergencies
   Spill response
   First aid
   Evacuation procedures

8. Review Regularly
   Annual reviews
   After incidents
   When processes change

COSHH is not just about compliance—it’s about protecting lives.

Every workplace that handles hazardous substances must:

• Identify risks
• Control exposure
• Train people
• Monitor health

Your Next Steps

• Create a chemical inventory
• Collect Safety Data Sheets
• Conduct COSHH assessments
• Implement controls
• Train your workforce

👉Read full Guide: COSHH Training