Sethoxydim Risk Assessment
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- Appendix 3
- Poast 2 , 19.3% a.i.) for 14 days. Static test. 0, 0.56, 1.0, 1.8, 3.2, or 5.6 mg/L Tech BAS 9052 ( Poast
- Poast 2 , 19.3% a.i.) for 14 days. 0, 0.56, 1.0, 1.8, 3.2, or 5.6 mg/L Tech BAS 9052 ( Poast
Appendix 3: Toxicity of Poast to fish, aquatic invertebrates, and aquatic plants. Animal Exposure Response Reference Aquatic Plants Lemna gibba (duckweed) freshwater macrophyte Selenastrum capricornutum, freshwater green alga Selenastrum capricornutum, freshwater green alga Anabaena flos-aquae, freshwater blue-green alga 0, 0.56, 1.0, 1.8, 3.2, or 5.6 mg/L Tech BAS 9052 ( Poast 2 , 19.3% a.i.) for 14 days. Static test. 0, 0.56, 1.0, 1.8, 3.2, or 5.6 mg/L Tech BAS 9052 ( Poast 2 , 19.3% a.i.) for 14 days. 0, 0.56, 1.0, 1.8, 3.2, or 5.6 mg/L Tech BAS 9052 ( Poast 2 , 19.3% a.i.) for 14 days. 0, 0.56, 1.0, 1.8, 3.2, or 5.6 mg/L Tech BAS 9052 ( Poast 2 , 19.3% a.i.) for 14 days. NOEC <0.56 mg/L. Frond count increased at all test concentrations, no flowering was observed in treated or untreated cultures; dry weight increased at all test concentrations; and specific frond weight (dry weight/frond) increased at all test concentrations, but could not be evaluated statistically for the 5.6 mg/L concentration. Frond damage, indicated by brown translucent fronds was observed at the three highest concentrations and was greatest (14% brown) on day 14. Although not quantified, exposure at all concentrations seemed to increase root length. No effect on maximum standing crop (cells/mL), no effect on dry weight, and no effect on lag period, relative to controls NOEC>5.6 mg/L No significant growth inhibition or stimulation relative to controls NOEC>5.6 mg/L No significant growth inhibition or stimulation relative to controls NOEC>5.6 mg/L Hughes 1980a MRID 41400103 Hughes 1980b MRID 41400106 Hughes 1981a MRID 41400104 Hughes 1981a MRID 41400104 Appendix 3-5 Appendix 3: Toxicity of Poast to fish, aquatic invertebrates, and aquatic plants. Animal Exposure Response Reference Aquatic Plants (continued) Skeletonema 0, 0.56, 1.0, 1.8, 3.2, or 5.6 No significant growth Hughes 1981a costatum, marine mg/L Tech BAS 9052 ( inhibition or stimulation MRID 41400104A diatom Poast 2 , 19.3% a.i.) for 14 relative to controls days. NOEC>5.6 mg/L Navicula seminulum, 0, 0.56, 1.0, 1.8, 3.2, or 5.6 Significant growth Hughes 1981a freshwater diatom mg/L Tech BAS 9052 ( stimulation at all MRID 41400104 Poast 2 , 19.3% a.i.) for 14 concentrations. days. NOEC<0.56 mg/L Lemna gibba G3, 0, 0.56, 1.0, 1.8, 3.2, or 5.6 Significant growth Hughes 1981a (duckweed), mg/L Tech BAS 9052 ( stimulation at all MRID 41400104 freshwater Poast 2 , 19.3% a.i.) for 14 concentrations. macrophyte days. NOEC<0.56 mg/L Skeletonema 0, 0.56, 1.0, 1.8, 3.2, or 5.6 The effect on maximum Hughes 1981b costatum, marine mg/L Tech BAS 9052 ( standing crop (cells/mL) was MRID 41400105 diatom Poast 2 , 19.3% a.i.) for 12 decreased at 1.0 mg/L days. Algal assay bottle concentration but not at the test. three higher concentrations, no effect on dry weight, no effect on lag period. NOEC>5.6 mg/L Navicula seminulum 0, 0.56, 1.0, 1.8, 3.2, or 5.6 Significant growth Hughes 1981c Grun, freshwater mg/L Tech BAS 9052 ( stimulation at all MRID 41400107 diatom Poast 2 , 19.3% a.i.) for 16 concentrations, effect on days. Algal assay bottle maximum standing crop test. (cells/mL) increased at all concentrations, effect on dry weight increased at all concentrations, except 3.2 mg/L concentration, no effect on lag period at any concentration. NOEC<0.56 mg/L Anabaena 0, 0.56, 1.0, 1.8, 3.2, or 5.6 No effect on maximum Hughes 1981d flos-aquae, mg/L Tech BAS 9052 standing crop (cells/mL), no MRID 41400108 freshwater blue-green ( Poast 2 , 19.3% a.i.) for 14 effect on dry weight, no effect alga days. Algal assay bottle on lag period. test. NOEC>5.6 mg/L 1 BASF 1982: This is a summary of studies and provides little experimental detail. 2 All studies using Poast involve exposures to the formulation but all concentrations are expressed in units of mg sethoxydim and not mg of the formulated product. Appendix 3-6 WORKSHEETS FOR WORKSHEETS FOR Sethoxydim Sethoxydim WS Version 2.02 WS Version 2.02 NOTE: These are based on Worksheet Version 2.02. See SERA WSD 01-2.01, Documentation for Worksheets Version 2.02 - Human Health and Ecological Risk Assessments, dated October 13, 2001. These worksheets are arranged in the following order: Table of Contents Series A General values and models Series B Chemical specific data Series C Worker exposures Series D General public exposures Series E HHRA Summary Tables Series F ERA Exposures Series G ERA Summary Tables List of general references Most worksheets are designated by a simple alphanumeric code. For example, Worksheet D03 is the third worksheet in Series D. Some closely related worksheets as designated by an additional alphabetic sub-code. For example, Worksheets D01a and D01b are the direct spray scenarios for a child and a woman, respectively. The worksheets in Series A and B also have short descriptive synonyms, as indicated in the table of contents. For example, Worksheet A03 contains the general assumptions used in exposure assessments for the general public and is designated as PUBL. Yüklə 4,8 Kb. Dostları ilə paylaş:
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