Simple download service (Atom) of the dataset: History of vulnerable areas.

History of vulnerable areas. Division at the municipal or cadastral section boundary. This table contains all vulnerable areas taken prefectoral since 2007. This table should not be used without a filter. To have the vulnerable areas valid, filter the layer with the “est_valid” field equal to ‘Yes’. The layer N_VULNERABLE_ZSUP_021 is already filtered. The delimitation of areas vulnerable to pollution by nitrates of agricultural origin was made in the context of Decree No 93-1038 of 27 August 1993, which transposes Directive 91/676/EEC into French law. This delimitation, prepared in each department and in each region by working groups, involving various departments and bodies concerned as well as representatives of the agricultural profession, is based on the knowledge acquired of nitrate levels in the aquifers and rivers and on the levels observed during various monitoring campaigns on a monitoring network set up for that purpose. Each prefect co-ordinating basin fixed by decree the communes or part of a commune forming part of the vulnerable area. Up-to-date layer at 02/07/2018.