What is Control of Substances Hazardous to Health (COSHH)?
Control of Substances Hazardous to Health is a structured occupational health and industrial hygiene framework designed to identify, evaluate, and control risks arising from exposure to hazardous substances in the workplace. In industrial environments, these substances include chemicals, hydrocarbons, solvents, dusts, vapours, fumes, mists, gases, and biological agents generated during routine operations, maintenance activities, and process upsets.
A technically sound COSHH assessment examines:
- The intrinsic health hazards of substances
- Potential exposure routes (inhalation, dermal, ingestion, ocular)
- Frequency and duration of exposure
- Effectiveness of engineering and administrative controls
The objective of Control of Substances Hazardous to Health is to reduce occupational exposure risks to as low as reasonably practicable (ALARP) while maintaining operational efficiency and regulatory compliance.
At iFluids Engineering, COSHH is implemented as a hazardous substance risk assessment discipline, integrated with process operations, industrial hygiene practices, and task-based exposure evaluation not as a checklist-driven compliance exercise.
Importance of Control of Substances Hazardous to Health in Qatar’s Industrial Sector
Qatar’s oil & gas, LNG, petrochemical, and utilities sectors operate with high inventories of hazardous materials under elevated pressures and temperatures. The potential for occupational exposure is inherent in such environments.
A comprehensive Control of Substances Hazardous to Health assessment supports:
- Protection against acute toxic exposure (e.g., H₂S, benzene vapours)
- Prevention of long-term occupational illness and chronic health effects
- Compliance with workplace health and safety expectations
- Strengthening of occupational hygiene and exposure monitoring programs
- Risk-informed decision-making during maintenance and shutdown activities
Unlike process safety studies that focus on catastrophic events, COSHH assessments address routine and task-based health risks, ensuring day-to-day workforce protection.
Scope of Our Control of Substances Hazardous to Health Services in Qatar
| Service Area | Key Activities | Technical Focus |
|---|---|---|
| Hazardous Substance Identification | Chemical inventory review, SDS evaluation, GHS classification, identification of process by-products | Establishing a complete hazardous substance register and defining intrinsic health hazards |
| Exposure Assessment & Industrial Hygiene Evaluation | Task-based exposure review, pathway assessment, ventilation evaluation, OEL comparison | Qualitative, semi-quantitative, or data-supported exposure estimation aligned with industrial hygiene best practices |
| Health Risk Characterisation | OEL/TLV/STEL benchmarking, cumulative exposure review, toxicity evaluation, workforce risk identification | Determining health risk magnitude and prioritizing control measures |
COSHH Risk Assessment Methodology
Our Control of Substances Hazardous to Health methodology is structured, auditable, and technically defensible.
1. Substance Inventory & Data Analysis
- Hazard classification review
- Toxicological endpoint evaluation
- Establishment of exposure benchmarks
2. Exposure Evaluation
- Assessment of work practices and operating conditions
- Review of existing engineering controls (containment, ventilation, isolation)
- Evaluation of PPE suitability and limitations
3. Risk Determination
- Hazard–exposure comparison
- Prioritisation of health risks
- Identification of exposure scenarios requiring mitigation
4. Control Strategy Development
- Engineering improvements (local exhaust ventilation, closed transfer systems)
- Administrative measures (restricted access, training, procedural controls)
- PPE optimisation and monitoring strategies
5. Reporting & Compliance Documentation
- COSHH assessment report
- Hazardous substance register
- Action tracking and periodic review recommendations
Integration with Process Safety and Risk Engineering
Effective Control of Substances Hazardous to Health does not operate in isolation. Our COSHH services are aligned with:
- HAZID and HAZOP studies
- Quantitative Risk Assessment (QRA)
- Fire and Explosion Risk Assessment (FERA)
- Industrial hygiene monitoring programs
- Management of Change (MOC) procedures
This integration ensures that health risks from hazardous substances are assessed alongside process hazards, providing a complete operational risk profile.
Standards and Technical Framework
Our COSHH services in Qatar are aligned with:
- International occupational health and industrial hygiene principles
- GHS hazard classification systems
- Recognized occupational exposure limit frameworks
- Oil & gas and petrochemical industry best practices
All assessments are based on exposure science, toxicology, and practical engineering judgement never template scoring or generic documentation.
Industries Supported in Qatar
Our Control of Substances Hazardous to Health services are tailored for:
- Upstream, midstream, and downstream oil & gas facilities
- LNG and gas processing plants
- Petrochemical and chemical manufacturing operations
- Power generation and utilities
- Tank farms, terminals, and storage facilities
Each COSHH study is site-specific and task-focused, reflecting actual operational practices within Qatar’s industrial environment.
Why iFluids Engineering for Control of Substances Hazardous to Health in Qatar?
Organizations engage iFluids Engineering because we deliver:
- Technically rigorous COSHH assessments
- Strong industrial hygiene expertise
- Clear, implementable exposure control strategies
- Integration with broader risk engineering frameworks
- Audit-ready, regulator-aligned documentation
We treat Control of Substances Hazardous to Health as a core occupational risk management discipline ensuring workforce protection, operational continuity, and sustainable compliance.
Engage Our COSHH Specialists in Qatar
If your facility handles hazardous chemicals or process-generated contaminants, a structured Control of Substances Hazardous to Health assessment is essential for protecting workforce health and meeting compliance expectations.
Contact iFluids Engineering to strengthen your hazardous substance management framework and enhance workplace health protection across your operations.