#The study of the socio-professional world shows a large variety of ways in which people perceive danger. These perceptions vary according to what kind of domain this danger is set up in, i.e. the individual, a population, nature or premises.
#The diversity of these centres of interest has led to different activities, study techniques and preventive measures (ergonomics, health and safety in industrial surroundings, human reliability, installations security/safety, sanitary engineering, applied ecology, epidemicology, industrial toxicology, crisis management, etc.) which coexist but, more often than not, ignore one another.

Is there a particular way to treat the subject of Health, Safety and Environmental matters in a global fashion? Is it possible, somehow, amongst the various methods of approche, to find a silver lining which would allow to consider the subject in line of account with a unified means?