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Vol 6 - Issue 1

Urban Risks

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Confinement of the population in case of toxic cloud: from the doctrine to its application in urban areas

This paper studies the doctrine of population containment’s in case of an industrial accident with toxic effects in France. The accident in Bhopal (India, 1984) led to one of the worst industrial disasters in history, with nearly 4000 victims in only a few hours following the explosion of a chemical plant and the release of a deadly gas into the atmosphere. Many countries are exposed to industrial accidents, and the occurrence of a catastrophic event is sometimes followed by changes in regulations and measures at the national or even international level: reinforcement of hazard studies and safety measures on the part of industrialists, warning measures and integration of vulnerability on the part of territorial management of issues. However, the low occurrence of major industrial accidents on a national scale and the low probability of their recurrence in the same territory (unlike natural hazards) are potentially a brake on these developments. The weakness of the resources and capacities of the populations to protect themselves from an industrial accident and its toxic effects are an illustration. The objective of this paper is to present how toxic effects are defined around industrial plants classified as Seveso in France, and its consequences on land use planning, on containment standards and on information to the population. From a case study, the industrial accident in the metropolis of Rouen Normandie on September 26, 2019, we show how people living in the 500-meter containment zone around the site behaved and study which local devices could be put in place to make the containment instruction applicable to the whole territory.

Other issues :


Volume 17- 1

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Volume 18- 2

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Volume 19- 3

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Volume 20- 4

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Volume 21- 5

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Volume 22- 6

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