CasNr: Tester. 5d EC Selenastrum capricornutum h NOEC h LC h LC Onchorhynchus mykiss 3

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1 Penkonazol Fane 1 - Preparat Handelsnavn: Topas 100 Fungicid Casr: Tester Test-type Test-varighet µg/l Art Litteratur PEC1 PEC Alger kronisk Fisk akutt Fisk kronisk Vannplanter akutt 5d EC50 80 Selenastrum capricornutum 4 10h OEC h LC d OEC 69 Daphnia magna, 96h LC Onchorhynchus mykiss 0d OEC 60 Pimephales promelas 14d EC50 0 Lemna gibba Basert på µg/l Usikkerhetsfaktor Verdi (µg/l) AMF basert på PEC1 Laveste L(EC) MF basert på PEC LavesteOEC ,9 Vurderingsgrunnlag for usikkerhetsfaktor: PEC:Kronisk OEC tre trofiske nivå. Laveste OEC brukes med UF=10 PEC1: L(E)C50 tilgjengeligfra tre trofiske nivå. Vannplanter mest følsomme. Derfor brukes UF=10 Tidligere MFI vannplante 11 Fane - Tester Alle tester Test-type Test-varighet µg/l Art Litteratur Vis Alger kronisk Fisk akutt Fisk kronisk Vannplanter akutt 10h LC d EC50 80 Selenastrum capricornutum 4 10h OEC h LC h IC Daphnia magna 1 1d OEC d OEC 69 Daphnia magna, 96h LC Onchorhynchus mykiss 0d OEC 60 Pimephales promelas 14d EC50 0 Lemna gibba Fane - Kommentarer Fane 4 - r Litteraturreferanser 1 Gustafsson K.,1988.Ekotoxicologisk utvardering av Penkonazol, verksam beståndsdel I Topas EC. Vetenskapeig utredning och dokumentation. Kjemikalieinspekjsonen. Sverige.

2 Penkonazol Bjørk M., 199. Amendment to ecotoxicological evaluation of penconazole. Scientific documentation and research. ational Chemical Inspectorate. Sweden Mattsoff L., Penconazole, ecotoxicological evaluation. Helsinki. 4 Tomlin ed.: The Pesticide Manual, Biologische Bundesanstalt fur Land- und Forstwirtschaft, BBA- r.655, 006 Fane 5 - Diverse info om preparatet Godkjenelsesdato: 199 Fornyet godkjenning: 001 Trukket (dato): SpesialAnalyse Metode: M60 Bestemmelsesgrense: 0,01 Dato siste gjennomgang: GC-MULTI Kommentarer

3 Vedlegg for Penkonazol Kilde: Svensk undersøkelse Penconazol Penconazole is a fungicide belonging to a group of systemic triazoles. The fungicide acts by inhibition of the ergosterol biosynthesis (). Penconazole is used in cultivation of fruit and strawberries. Cl H C (CH ) CH Cl CH 1.1 Physico-chemical properties Physico-chemical properties of penconazole are summarised in table 1.1. Table 1.1: Physico-chemical properties of penconazole. Reference CAS-o Empirical formula C 1 H 15 Cl Molecular weight [g/mol] 84. Solubility in water [mg/kg] 70 at 0ºC pka 1.51 at 0ºC Vapour pressure [Pa] at 5ºC Log P ow.7 at ph 5.6 and 5ºC Henry s law constant [Pa m /mol] at 0ºC 4 1. Toxicity to aquatic organisms The toxicity of penconazole to aquatic organisms is summarised in table 1.. Table 1.: Aquatic ecotoxicity data of penconazole. Species End-point Exposure duration Result [mg as/l] Reference Higher aquatic plants Lemna gibba frond number 14d, static EC Crustaceans

4 Daphnia magna immobility 4h, static IC Straus Daphnia magna immobility 4h, static IC Straus Daphnia magna reproduction 1d, flow-through OEC ), Fish Onchorhynchus mortality 96h, static LC mykiss Onchorhynchus mortality 96h, static LC mykiss Pimephales promelas (early life stage test) larval growth 0d, flow-through OEC 0.6 1) Effect concentration basis for calculation of PEC. Test substance purity 87.% The most sensitive of the tested species was Daphnia magna, with a OEC of mg/l. Short term studies are available from three trophic levels and long term studies from two. According to available studies Onchorhynchus mykiss is the most sensitive species for acute toxicity. However long term toxicity has not been tested for Onchorhynchus mykiss. Hence a higher assessment factor (100) is chosen to compensate the uncertainty. The PEC for penconazole is calculated to mg/l. 1. Bioaccumulation and persistence Penconazole is expected to bioaccumulate. The log P ow of.7 indicates a potential for bioaccumulation, which is confirmed by studies with the result BCF 0. Penconazole is stable for hydrolysis (1). The degradation has been studied in two water/sediment systems; Rhine water system and pond water system. The degradation proceeded very slowly with an approximate DT 50 of 11 weeks. However penconazole is readily adsorbed onto the sediments. After 7 days in the tests 5-54% of the added amount of penconazole is partitioned into sediment. () 1.4 Proposed water quality objective Since PEC is mg/l, the proposed water quality standard for penconazole is mg/l. 1.5 Comments Penconazole is not expected to reach surface and ground waters through the soil profile (1). Due to rapid adsorption onto the sediment, an additional quality objective is recommended for sediment.

5 1.6 Literature (1) Gustafsson K., Ekotoxicologisk utvärdering av Penkonazol, verksam beståndsdel I Topas EC. Vetenskaplig utredning och dokumentation. Kemikalieinspektionen. Sverige. () Björk M., 199. Amendment to ecotoxicological evaluation of penconazole. Scientific documentation and research. ational Chemical Inspectorate. Sweden. () Mattsoff L., Penconazole, ecotoxicological evaluation. Helsinki. (4) Tomlin, C., 000. The Pesticide Manual, 1 th edition. British Crop Protection Council.