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  • Phytoplancon is one of the 4 biological quality elements (BQE) for the assessment of the ecological status of the natural water bodies. The evaluation of this BQE is only relevant for the large rivers where the quantity of phytoplancton is significant and can be evaluated. The natural water bodies of typology VI present significant phytoplancton concentrations to allow an assessment. Some of the heavy modified waterbodies (HMWB) present significant phytoplancton concentrations too, these are the HMWB Sûre (WB III-2.2.1) and the HMWB Our (WB V-1.2). The annual frequency for phytoplancton monitoring is 6 samples between April and October.

  • Décharges de déchets inertes, de construction et de démolition

  • Entrepôts de déchets

  • Risk assessment of the groundwater body regarding the failure of the good state in 2027.

  • Risk assessment of the groundwater body regarding the good chemical state in 2027.

  • Risk assessment of the groundwater body regarding the good quantitative state in 2021.

  • In the detailed programme of measures, the types of measures related to hydromorphology (HY) and urban wastewater management (SWW) which are defined in the catalogue of measures of the second river basin management plan, were assigned to the individual water bodies. The objective of this assignation is to identify for each water body those measures that will help to reduce the pressures and deficits present in the water body, thereby improving its status or maintaining its good status. The hydromorphological measures include the improvement of the ecological continuity, the renaturation of water courses as well as the regulation of the minimal flow. Some hydromorphological types of measures can have a positive effect on the reduction of floods.

  • Due to the prolonged drought and the warm and sunny weather, we advise all citizens to reserve the use of drinking water, as far as possible, to essential uses such as food preparation and hygiene.

  • Drinking water shortage (level « orange »)

  • The concept of aquatic habitat connectivity is based on the migration of aquatic species from habitats presenting favorable local conditions to habitats presenting less favorable habitats. Based on the structural quality mapping carried out in 2013-2014 and the planning conditions and restrictions, the watercourse network of the luxemburgish surface water bodies was divided into six categories of functional elements.