The data generated enables risks to be benchmarked against internationally recognized guidance on tolerable risk levels for employees and public. The assessment also provides a basis for the appropriate level of control to be implemented in the most cost effective way.
Major plant hazards come from toxic gas release, fire and explosions. Detailed consequence analysis of each source, including blast modelling, thermal radiation profiles for fires and gas dispersion modelling that applies data relating to the impact of concentrations of toxic gas (see gas dispersion modelling and gas & vapour explosions below) enables calculation of risk levels around the plant and individual items of equipment.
Individual risk contours can be generated that show the risk to individuals working on the plant and also to people living in the local area.