Quantitative Risk Assessment (QRA)

Quantitative Risk Assessment (QRA)

Quantitative Risk Assessment (QRA) systematically estimates the likelihood and consequences of hazardous events, including fires, explosions, and toxic releases. QRA provides a robust, data-driven basis for managing safety, environmental, and economic risks in high-hazard industries, supporting ALARP demonstration and informed decision-making.

Qualitative Risk Assessment

Qualitative Risk Assessment (QRA) provides a structured, deterministic approach to identifying, assessing, and managing risks in high-hazard industries. It supports the demonstration that engineering designs, safety measures, and operational practices are robust, effective, and aligned with ALARP principles. Using methods such as hazard identification (HAZID), risk matrices, bowtie analysis, and human factors assessment, we help organisations manage complex risks, comply with regulatory and industry standards like ISO 31000, IEC 61511, and Seveso III, and protect people, assets, and the environment across the asset lifecycle.

DSEAR Risk Assessment

DSEAR (Dangerous Substances and Explosive Atmospheres Regulations) assessments are required in UK workplaces handling flammable gases, vapours, mists, dusts, or explosive atmospheres. These assessments instill the ALARP principle, starting with inherent safety, ventilation, ignition control and mitigation. By focusing on both technical and organisational controls, DSEAR risk assessments help protect people (as well as property) from fire, explosion, and related hazards.

Hazard Identification (HAZID)

Hazard Identification (HAZID) is the foundation of any risk assessment and a critical first step in effective risk management. Unidentified hazards cannot be controlled, so a systematic and structured approach to hazard identification is essential to protect people, assets, the environment, and business continuity. Across industries and lifecycle stages, we apply a wide range of HAZID methods — from workshops, checklists, and walkdowns using tools like FMEA, HAZOP, and bowtie analysis — helping clients identify hazards, evaluate their risks, and comply with regulatory frameworks such as Seveso III, COMAH, ISO 31000 and IEC 61511.

Air Emissions Risk Assessment

Air quality assessments use atmospheric dispersion modelling to evaluate the impact of industrial emissions on local air quality, human health, and sensitive ecosystems. Following UK Environment Agency guidance, including screening and detailed assessments, these studies support environmental permit applications, compliance strategies, emissions reduction plans, and sustainable development.

Safety Cases and Safety Reports

A Safety Case or HSSE (Health, Safety, Security & Environmental) Case demonstrates that a high-hazard facility has identified its major accident hazards, assessed the associated risks, and implemented sufficient controls to reduce those risks to a tolerable or ALARP level. Safety cases are tailored to industry, site-specific, and regulatory requirements, providing assurance to regulators, workforce, and stakeholders that risks to people, the environment, and assets are systematically identified, managed, and continuously monitored. They play a central role in regulatory regimes such as the Nuclear Installations Act, UK Offshore Installations (Safety Case) Regulations, COMAH Regulations, and Seveso III Directive.