1. Existing Priority Substances EQS revision - MS questionnaire
WG E Chemical Aspects
Brussels June 2010
Agenda item 3(i)(a)
Helen Clayton
WFD Team
DG Environment
European Commission

2. Questionnaire on existing priority substances
21 MS returned questionnaires – thank you!
Document WG E(1)-10-03(i)(a) summarises MS proposals for review of EQS.
Summaries of responses to other questions will be circulated when analysis is complete.
Responses will be analysed in relation also to the source screening and measures sheets for existing substances.

3. Substances for which EQS should be reviewed because of new RAR data
Anthracene
Fluoranthene
Naphthalene
The 5 PAHs
Check RAR for pitch: relevant new info?

4. Substances for which more stringent EQS might be derived because of (new) RAR data
Lead + compounds (2008 RAR)
Nickel + compounds (2008 RAR)
PBDE (higher AF used in RAR?; + OctaBDE to be covered following prioritisation)

5. Substances for which EQS should be reviewed in order to comply with new EQS guidance
Carbon tetrachloride
Chlorpyrifos-ethyl
The 4 cyclodiene pesticides
para,para-DDT
Tetrachlor-ethylene
Trichlor-ethylene

6. Substances whose EQS should be reviewed for other reasons
Benzene
Carcinogenicity means human health should be assessment endpoint - more stringent EQS?
Hexachlorobenzene
Hexachlorobutadiene
Mercury + compounds
Biota EQS should take account of different sensitivities of species, life stages etc
Mercury: less stringent EQS in view of exceedances due to natural background?

7. Substances for which some MS suggested less stringent EQS (or EQS for other matrices) because of analytical difficulties
2 PAHs : Benzo(g,h,i)-perylene and Indeno(1,2,3-cd)-pyrene
PBDE
Cadmium + compounds
C10-13 chloroalkanes
Chlorpyrifos-ethyl
The 4 cyclodiene pesticides
Endosulfan
Hexachlorobenzene
Hexachlorobutadiene
Nonylphenols
Octylphenols
Pentachlorobenzene
Tributyltin compounds