Article 8d 2.

Where EQS for river basin specific pollutants have been set at Union level in accordance with Article 16(4) of Directive 2000/60/EC, and listed in Part C of Annex II to this Directive, those EQS shall take precedence over EQS for river basin specific pollutants established at national level in accordance with paragraph 1 of this Article. Those EQS set at Union level shall also be applied by the Member States to establish whether the river basin specific pollutants listed in Part C of Annex II to this Directive pose a risk.