This book is a guidebook for the health and safety of workers and will help to prevent workplace accidents. It covers five sections of work environments with dangerous hazards and high health risk. Every chapter has been expanded to include knowledge and skills to promote and maintain safety and health in a work environment, and these chapters analyse the duties of employers and employees. Risk factors in relation to safety in specific workplaces and issues concerning contamination prevention and control are investigated, and hazards and risks when workers are using equipment or handling hazardous materials and waste are examined. This book includes multiple points of interest for businesses and industries with potentially harmful work environments: • Welding works • Municipality’s waste collection • Working in modern workshops • Working on sea vessels • Working on offshore wind farms Hazards in welding environments are analyzed and steps to minimizing health and safety risks in welding operations are put forward. Concerning municipality waste collection, this book gives an overview of waste, waste management processes, and research concerning health hazards, illnesses and injuries. As machine tools pose multiple hazards, this book studies requirements for a safe workshop, along with the equipment requirements and their possible hazards, inspection and service procedures. Accidents at sea are still a common occurrence, but significant progress has been made in recent decades and all involved stakeholders enact accident avoidance and mitigation measures in accordance with current norms and legislation. This additional effort was made to present the duties and responsibilities from seafarers up to ship owner and the best practices proposed to conduct successful sea operations without damage or loss. Finally, this guidance presents risks and hazards on health, safety and environmental parameters that inform about the procedures and standards that are applied in the offshore wind industry.