This chapter presents the approach to the literature review examining scenarios involving hydrogen leakage. Six scenarios relevant for hydrogen safety are briefly presented. Key takeaways and further areas of research are also discussed.

This section addresses some of the main hydrogen safety concerns. Possible scenarios, including vapour cloud dispersion, ignition and hydrogen tank rupture, are discussed, along with their possible consequences. The section also identifies significant safety hazards and proposes the most important prevention measures.

The mapping exercise presents scholarly output, including experimental and modelling studies, relating to six selected scenarios of hydrogen-related accidents. The main conclusions from the study of the literature and identified knowledge gaps are also discussed for each scenario.