If all the preventive measures fail and there is a clear and present danger , then there is a need for detection of chemical attacks , collective protection , and decontamination . Since industrial accidents can cause dangerous chemical releases ( e.g. , the Bhopal disaster ) , these activities are things that civilian , as well as military , organizations must be prepared to carry out . In civilian situations in developed countries , these are duties of HAZMAT organizations , which most commonly are part of fire departments
Bhopal disaster
Bhopal disaster
Chemical warfare