
Health, Safety, and Environment Course
This Occupational Health, Safety, and Environment course gives you the practical knowledge and tools to protect workers, meet regulatory requirements, and build a stronger safety culture. From hazard identification to environmental compliance, every topic is grounded in real workplace application. Whether you're stepping into a safety role or advancing an existing career, this course delivers the skills employers demand.
What you will learn:
You will learn how to identify and control workplace hazards using the hierarchy of controls, conduct thorough incident investigations, and produce risk assessments that drive real corrective action. The course covers industrial hygiene, occupational health surveillance, and environmental management, including waste handling and pollution prevention. You will also learn how to design and audit OHS and environmental management systems aligned with internationally recognized standards. Strategic topics include safety culture development, performance measurement, and ESG integration. By the end, you will be equipped to lead safety and environmental programs at any organizational level.
How you study in practice Health, Safety, and Environment Course
How you practise Health, Safety, and Environment Course
For companies looking to train their team
With Dedika for Business, the course includes exercises and examples tailored to your own business and the way your company needs.
Course Content
8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsFoundations of Occupational Health and Safety
Foundations of Occupational Health and Safety
Lesson 1 • Key OHS Concepts and Terminology
Defines hazard, risk, exposure, and control as foundational vocabulary. Precise terminology enables accurate communication across all subsequent topics.
Lesson 2 • History and Evolution of Workplace Safety
Traces OHS from early industrial hazards to modern risk-based frameworks. Provides context for why current standards exist and how they developed.
Lesson 3 • Business Case for Safety Investment
Quantifies direct and indirect costs of workplace incidents and links safety ROI to organizational performance. Supports evidence-based justification for OHS budgets.
Lesson 4 • Roles and Responsibilities in OHS
Maps accountability across management, supervisors, workers, and safety officers. Clarifies how shared responsibility drives effective safety culture.
Lesson 5 • Legal and Regulatory Frameworks
Explains employer and worker duties under general-duty regulatory principles. Connects compliance obligations to practical workplace responsibilities.
Chapter 2HideHide detailsSee detailsHazard Identification and Risk Assessment
Hazard Identification and Risk Assessment
Lesson 1 • Risk Evaluation and Prioritization
Uses likelihood-consequence matrices to score and rank identified risks. Prioritization directs limited resources to the highest-impact controls first.
Lesson 2 • Reviewing and Updating Assessments
Establishes triggers and schedules for reassessment after changes or incidents. Continuous review keeps risk controls aligned with evolving workplace conditions.
Lesson 3 • Hazard Identification Methods
Applies walkthroughs, job safety analysis, and structured checklists to surface hazards. Systematic methods reduce reliance on memory and subjective judgment.
Lesson 4 • Types of Workplace Hazards
Categorizes physical, chemical, biological, ergonomic, and psychosocial hazards. Broad classification enables comprehensive workplace surveys.
Lesson 5 • Documenting and Communicating Risk Assessments
Structures risk registers and communicates findings to stakeholders clearly. Proper documentation supports accountability and regulatory compliance.
Chapter 3HideHide detailsSee detailsHazard Control and Prevention Strategies
Hazard Control and Prevention Strategies
Lesson 1 • Engineering Controls in Practice
Covers ventilation, guarding, noise enclosures, and ergonomic redesign as engineered solutions. Engineering controls reduce exposure without relying on worker behavior.
Lesson 2 • Verifying Control Effectiveness
Uses monitoring, audits, and leading indicators to confirm controls perform as intended. Verification closes the loop between risk assessment and actual exposure reduction.
Lesson 3 • Personal Protective Equipment Selection and Use
Guides PPE selection based on hazard type, fit testing, and maintenance requirements. Correct PPE use is the final barrier when other controls cannot fully eliminate risk.
Lesson 4 • Hierarchy of Controls Framework
Explains elimination, substitution, engineering, administrative, and PPE controls in priority order. The hierarchy guides selection of the most protective feasible option.
Lesson 5 • Administrative Controls and Safe Work Procedures
Develops job rotation, permit-to-work systems, and written safe work procedures. Administrative controls complement engineering measures when elimination is not feasible.
Chapter 4HideHide detailsSee detailsOccupational Health and Industrial Hygiene
Occupational Health and Industrial Hygiene
Lesson 1 • Occupational Health Surveillance Programs
Designs pre-placement, periodic, and exit health examinations linked to exposure profiles. Surveillance detects early health effects and validates control adequacy.
Lesson 2 • Biological and Ergonomic Health Hazards
Identifies pathogen exposure routes and musculoskeletal disorder risk factors in work tasks. Early recognition enables targeted controls before chronic conditions develop.
Lesson 3 • Principles of Industrial Hygiene
Defines anticipation, recognition, evaluation, and control as the industrial hygiene cycle. This framework structures all subsequent exposure assessment activities.
Lesson 4 • Physical Agents: Noise, Vibration, and Radiation
Measures noise dose, hand-arm vibration, and non-ionizing radiation against health-based limits. Physical agent control prevents hearing loss, vascular damage, and tissue injury.
Lesson 5 • Chemical Exposure Assessment
Covers air sampling strategies, occupational exposure limits, and safety data sheet interpretation. Accurate assessment determines whether chemical controls are adequate.
Chapter 5HideHide detailsSee detailsIncident Investigation and Reporting
Incident Investigation and Reporting
Lesson 1 • Investigation Reporting and Lessons Learned
Structures formal investigation reports and disseminates lessons across the organization. Sharing findings builds organizational learning and prevents similar incidents elsewhere.
Lesson 2 • Root Cause Analysis Techniques
Applies fault tree analysis, fishbone diagrams, and the five-whys method to identify systemic causes. Root-cause focus prevents recurrence rather than assigning individual blame.
Lesson 3 • Incident Classification and Reporting Obligations
Distinguishes fatalities, injuries, near-misses, and dangerous occurrences by severity. Correct classification triggers appropriate reporting timelines and investigation depth.
Lesson 4 • Securing the Scene and Gathering Evidence
Establishes scene preservation, witness interviewing, and physical evidence collection protocols. Reliable evidence is the foundation of accurate root-cause analysis.
Lesson 5 • Corrective and Preventive Action Planning
Develops SMART corrective actions tied to identified root causes and assigns ownership. Structured action plans ensure findings translate into lasting workplace improvements.
Chapter 6HideHide detailsSee detailsEnvironmental Management Fundamentals
Environmental Management Fundamentals
Lesson 1 • Environmental Aspects and Impacts
Identifies organizational activities that interact with air, water, soil, and biodiversity. Aspect-impact analysis is the starting point for all environmental management decisions.
Lesson 2 • Environmental Monitoring and Reporting
Designs ambient and stack monitoring programs and prepares regulatory environmental reports. Monitoring data demonstrates compliance and identifies emerging environmental issues.
Lesson 3 • Environmental Regulatory Compliance
Maps permit requirements, discharge limits, and reporting obligations to operational activities. Compliance management prevents regulatory penalties and reputational damage.
Lesson 4 • Hazardous Waste Identification and Management
Classifies hazardous waste by characteristic and manages storage, labeling, and disposal. Proper handling protects workers, communities, and the environment from toxic exposure.
Lesson 5 • Pollution Prevention and Waste Minimization
Applies source reduction, reuse, recycling, and treatment in priority order to minimize waste. Prevention-first strategies reduce disposal costs and environmental liability.
Chapter 7HideHide detailsSee detailsOHS and Environmental Management Systems
OHS and Environmental Management Systems
Lesson 1 • OHS Management System Implementation
Covers hazard identification, objectives, operational controls, and competence requirements for OHS systems. Systematic implementation embeds safety into daily organizational processes.
Lesson 2 • Environmental Management System Implementation
Applies aspect-impact registers, environmental objectives, and operational controls within a formal system. Structured implementation ensures consistent environmental performance across sites.
Lesson 3 • Management System Principles and Structure
Explains Plan-Do-Check-Act logic and the high-level structure shared by major management system standards. A common structure enables integration of OHS and environmental programs.
Lesson 4 • Internal Auditing of Management Systems
Trains auditors to plan, conduct, and report conformance audits against system requirements. Internal audits identify gaps before external certification or regulatory reviews.
Lesson 5 • Management Review and Continual Improvement
Structures management review inputs, outputs, and follow-up actions to drive system improvement. Regular reviews ensure leadership engagement and resource allocation for OHS and environment.
Chapter 8HideHide detailsSee detailsStrategic OHS and Environmental Leadership
Strategic OHS and Environmental Leadership
Lesson 1 • OHS Performance Measurement and KPIs
Selects balanced leading and lagging indicators and builds dashboards for executive reporting. Meaningful metrics enable data-driven decisions and demonstrate OHS program value.
Lesson 2 • Corporate Sustainability and ESG Integration
Aligns OHS and environmental programs with environmental, social, and governance reporting frameworks. Integration elevates safety and environment from compliance functions to strategic assets.
Lesson 3 • Change Management for OHS and Environment
Applies management-of-change processes to assess OHS and environmental impacts before implementing operational changes. Structured change management prevents new hazards from being introduced.
Lesson 4 • Strategic Planning for Long-Term OHS Excellence
Develops multi-year OHS and environmental strategic plans with resource allocation and governance structures. Strategic planning transforms reactive safety programs into proactive organizational capabilities.
Lesson 5 • Building and Sustaining Safety Culture
Diagnoses cultural maturity using established models and designs targeted interventions. A strong safety culture is the most durable driver of incident reduction.
Your valid completion certificate
This course is for you:
Supervisors stepping into formal safety responsibilities for the first time.
HR professionals expanding their scope to include workforce health programs.
Environmental coordinators who need to integrate occupational safety knowledge.
Operations managers accountable for regulatory compliance across multiple sites.
Recent graduates pursuing entry-level roles in health, safety, or environment.
Career changers drawn to purpose-driven work that protects people and communities.
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