Table 9.
Acute EC50 (95% confidence limit) data for standard and additional aquatic species considered valid in the dossier of Organophosphate A. NC = a reliable 95% confidence limit could not be calculated
| Species | Taxonomy | 48‐h EC50 (μg/L) | 72‐h EC50 (μg/L) | 96‐h EC50 (μg/L) | |
|---|---|---|---|---|---|
| 1 | Daphnia magna | Crustacea; Cladocera | 0.48 (0.34–0.69) | 0.25 (0.19–0.32) | 0.17 (0.12–0.23) |
| 2 | Asellus aquaticus | Crustacea; Isopoda | 6.16 (4.89–7.76) | 5.27 (4.07–6.82) | 3.43 (2.75–4.26) |
| 3 | Gammarus pulex | Crustacea; Amphipoda | 0.38 (0.20–0.70) | 0.24 (0.04–1.34) | 0.23 (0.20–0.25) |
| 4 | Neocaridina denticulata | Crustacea; Decapoda | 327 (NC) | 237 (147–381) | 171 (NC) |
| 5 | Procambarus sp. | Crustacea; Decapoda | 1.70 (1.03–2.80) | 1.29 (0.82–2.01) | 1.20 (0.75–1.93) |
| 6 | Chironomus riparius | Insecta; Chironomidae | 0.44 (0.32–0.59) | 0.32 (0.22–0.47) | 0.18 (0.07–0.43) |
| 7 | Anax imperator | Insecta; Anisoptera | 3.13 (NC) | 1.66 (1.55–1.77) | 1.63 (NC) |
| 8 | Cloeon dipterum | Insecta; Ephemeroptera | 0.76 (NC) | 0.41 (0.33–0.50) | 0.31 (0.26–0.38) |
| 9 | Notonecta maculata | Insecta; Heteroptera | 9.07 (7.18–11.5) | 6.06 (4.46–8.31) | 2.78 (NC) |
| 10 | Paraponyx stratiotata | Insecta; Lepidoptera | 2.94 (1.65–5.24) | 3.87 (2.14–6.92) | 2.86 (1.17–6.97) |
| 11 | Plea minutissima | Insecta; Heteroptera | 2.65 (2.06–3.39) | 1.55 (NC) | 1.29 (0.92–1.80) |
| 12 | Ranatra linearis | Insecta; Heteroptera | 12 (NC) | 4.40 (2.80–7.10) | 3.33 (2.95–3.76) |
| 13 | Sialis lutaria | Insecta; Megaloptera | 1.55 (0.25–9.58) | 1.07 (0.96–1.20) | 0.96 (NC) |