Scientific Opinion on "Draft Environmental Quality Standards for Priority Substances under the Water Framework Directive" - Clothianidin

SCHEER WG on Water Framework Directive
SCHEER members: Marian Scott (Chair), Marco Vighi (Rapporteur), Thomas Backhaus, Teresa Borges, Peter Hoet, Pim de Voogt
External experts: Andrew Johnson, Jan Linders
Contact:SANTE-C2-SCHEERec [dot] europa [dot] eu (SANTE-C2-SCHEER[at]ec[dot]europa[dot]eu)
On request from: European Commission
Adopted on: 25 March 2022

The dossier on Environmental Quality Standards for “Clothianin” was reviewed by the SCHEER according to the general mandate on EQS dossiers.

The SCHEER endorses the MAC-QS_fw,eco = 0.34 µg L^-1, derived with a deterministic procedure. The SCHEER agrees with the decision of not considering reliable the probabilistic approach due to the high degree of uncertainty.

For saltwater, the SCHEER endorses the deterministic MAC-QS_sw,eco = 0.034 µg L^-1.

The SCHEER endorses the AA-QS_{fw, eco} = 0.01 µg L^-1, derived with a deterministic procedure. The probabilistic procedure is not applied due to the scarcity of data.

For saltwater, the SCHEER endorses the deterministic AA-QS_sw,eco = 0.001 µg L^-1.

The SCHEER agrees with the decision of not deriving an EQS for secondary poisoning.

For human health, the SCHEER endorses a QS_biota,hh = 12 mg kg^-1 and the adoption of the general drinking water standard for pesticides (0.1 µg L^-1).

Keywords:

pesticides, neonicotinoid, clothianidin, Water Framework Directive, environmental quality standards

Opinion to be cited as:

SCHEER (Scientific Committee on Health, Environmental and Emerging Risks), Final Opinion on Draft Environmental Quality Standards for Priority Substances under the Water Framework Directive - Clothianidin, 25 March 2022.