Dataset Direct Download Service (WFS): Areas Vulnerable to Pollution by Nitrates of Agricultural Origin in the Indre-et-Loire

Vulnerable areas are land designated in accordance with European Directive No. 91-676.

A vulnerable area is a part of the territory where water pollution by direct or indirect discharge of nitrates of agricultural origin or other nitrogen compounds that may become nitrates threatens in the short term the quality of aquatic environments and, in particular, the supply of drinking water.

Vulnerable areas shall be considered as vulnerable areas where:
— Groundwater and surface fresh water, in particular those used or intended for water abstraction for human consumption, with a nitrate content exceeding 50 milligrams per litre,
— The waters of estuaries, coastal and marine waters and surface fresh waters which undergo eutrophication to which the enrichment of the water with nitrogen compounds from agricultural sources contributes.

An action programme shall be implemented in each department concerned, setting out the requirements to be complied with by all farmers in the corresponding vulnerable area. They are constructed in consultation with all relevant stakeholders, based on a local diagnosis. They aim to correct the most pollution-generating practices.
Outside vulnerable areas, a national code of good agricultural practice is voluntary.

Each vulnerable area corresponds to a prefectural decree (coordinating basin prefect) after consulting the departmental council of Hygiene, the general and regional councils and the basin committee. Vulnerable areas shall be reviewed at least every 4 years.
This decree is the founding regulatory text of the vulnerable area.

The list of municipalities or parts of municipalities in the Loire-Bretagne basin classified as vulnerable areas is drawn from Prefectural Orders Nos 21.231 and 21.230 of 30 August, supplemented by their annexes.

The list of municipalities or parts of municipalities in the Seine-Normandie basin classified as vulnerable areas is derived from Prefectural Order No IDF — 2021-08-04-00005 of 4 August 2021, supplemented by its annexes

脆弱区域（Vulnerable areas）指依据欧盟第91/676号指令划定的土地。

脆弱区域指领土范围内因直接或间接排放农业源硝酸盐（nitrates）或其他可转化为硝酸盐的氮化合物引发水污染，且该污染在短期内威胁水生环境质量，尤其是饮用水供应的区域。

符合以下任一情形的区域可认定为脆弱区域：
—— 地下水及地表淡水（尤其用于或拟用于人类饮用水取水的水体）的硝酸盐含量超过50毫克/升；
—— 河口、近岸海域及地表淡水水体发生富营养化（eutrophication），且该富营养化系由农业源氮化合物的水体富集所引发。

各相关省均应制定行动方案，明确对应脆弱区域内所有农户需遵守的要求。此类方案基于本地诊断结果，经与所有相关利益攸关方协商后制定，旨在纠正污染最为严重的农业生产行为。在非脆弱区域内，国家良好农业操作规范（national code of good agricultural practice）为自愿性标准。

每个脆弱区域的划定均需经卫生部门议会、总议会及区域议会、流域委员会协商后，由流域协调省长令（prefectural decree）予以确定。脆弱区域的划定至少每4年需进行一次复核。该省长令为脆弱区域的基础性监管文本。

卢瓦尔河-布列塔尼流域内被划定为脆弱区域的市镇或市镇部分区域清单，依据8月30日发布的第21.231号及第21.230号省长令及其附件整理而成。

塞纳河-诺曼底流域内被划定为脆弱区域的市镇或市镇部分区域清单，则依据2021年8月4日发布的第IDF—2021-08-04-00005号省长令及其附件整理而成。