Context
Chemical incidents most often happen following leaks, explosions or fires in industrial settings.
Most sites using chemicals are required to perform risk assessments and have plans to mitigate the effects of accidental release.
The terrorist use of chemical warfare agents is rare but important. For example, the Tokyo subway attacks involving Sarin have provided significant insight into how to deal with such incidents.
The effects of chemical poisoning may be acute or may produce long lasting, chronic health effects that may carry a significant health burden [1].