Chemistry:Zone rouge

Short description: Environmentally devastated WWI battlefields in France

Map showing conditions immediately following the war: totally destroyed areas in red, areas of major damage in yellow, moderately damaged areas in green, and undamaged areas in blue

A German trench at Delville Wood, near Longueval (Somme), that was destroyed in 1916 in the Red Zone

Verdun battlefield (2005)

The zone rouge (English: red zone) is a chain of non-contiguous areas throughout northeastern France that the French government isolated after the First World War. The land, which originally covered more than 1,200 square kilometres (460 sq mi), was deemed too physically and environmentally damaged by conflict for human habitation. Rather than attempt to immediately clean up the former battlefields, the land was allowed to return to nature. Restrictions within the Zone Rouge still exist today, although the control areas have been greatly reduced.

The zone rouge was defined just after the war as "Completely devastated. Damage to properties: 100%. Damage to Agriculture: 100%. Impossible to clean. Human life impossible".

Under French law, activities such as housing, farming, or forestry were temporarily or permanently forbidden in the Zone Rouge, because of the vast amounts of human and animal remains, and millions of items of unexploded ordnance contaminating the land. Some towns and villages were never permitted to be rebuilt after the war.

Main dangers

The areas are saturated with unexploded shells (including many gas shells), grenades, and rusting ammunition. Soils were heavily polluted by lead, mercury, chlorine, arsenic, various dangerous gases, acids, and human and animal remains. The area was also littered with ammunition depots and chemical plants.

Each year, numerous unexploded shells are recovered from former WWI battlefields in what is known as the iron harvest. According to the Sécurité Civile, the French agency in charge of the land management of Zone Rouge, 300 to 700 more years at this current rate will be needed to clean the area completely. Some experiments conducted in 2005–06 discovered up to 300 shells per hectare (120 per acre) in the top 15 cm (5.9 in) of soil in the worst areas.

Areas where 99% of all plants still die remain off limits (for example, two small pieces of land close to Ypres and the Woëvre), as arsenic constitutes up to 175,907 mg (175.9g) /kg of soil samples because arsenical shells were destroyed in the 1920s.

See also

• French villages destroyed in the First World War
• Involuntary park
• Iron harvest
• No man's land

Further reading

• Smith, Corinna Haven & Hill, Caroline R. Rising Above the Ruins in France: An Account of the Progress Made Since the Armistice in the Devastated Regions in Re-establishing Industrial Activities and the Normal Life of the People. New York: GP Putnam's Sons, 1920: 6.
• De Sousa David, La Reconstruction et sa Mémoire dans les villages de la Somme 1918–1932, Editions La vague verte, 2002, 212 pages
• Bonnard Jean-Yves, La reconstitution des terres de l'Oise après la Grande Guerre: les bases d'une nouvelle géographie du foncier, in Annales Historiques Compiégnoises 113–114, pp. 25–36, 2009.
• Parent G.-H., 2004. Trois études sur la Zone Rouge de Verdun, une zone totalement sinistrée I.L'herpétofaune – II.La diversité floristique – III.Les sites d'intérêt botanique et zoologique à protéger prioritairement. Ferrantia, 288 pages
• Bausinger, Tobias; Bonnaire, Eric; & Preuß, Johannes,. Exposure assessment of a burning ground for chemical ammunition on the Great War battlefields of Verdun, Science of the Total Environment 382:2–3, pp. 259–271, 2007.

External links

• Map of the Western Front in 1918 (in English)
• Déminage à Douaumont (in French and English)
• National Geographic: France’s Zone Rouge is a Lingering Reminder of World War I (in English)