Table 18.
Calculated EP50 (endpoint mortality plus immobility) and corresponding HP5 values (and 95% confidence limits) for all 13 aquatic arthropods (see Table 8) and exposure profiles of exposure scenarios A–F by using the GUTS‐RED‐IT model
| Species | Exposure scenarios | ||||||
|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | ||
| EP50 values GUTS‐RED‐IT | |||||||
| 1 | Daphnia magna | 122 (97–145) | 39 (32–49) | 161 (9,127–191) | 66 (54–78) | 28 (23–32) | 40 (33–47) |
| 2 | Asellus aquaticus | 1,445 (1,221–1,626) | 488 (416–671) | 1,953 (1,648–2,319) | 801 (651–901) | 342 (283–390) | 488 (412–580) |
| 3 | Gammarus pulex | 66 (49–80) | 22 (16–37) | 88 (69–110) | 35 (29–46) | 15 (11–19) | 22 (18–27) |
| 4 | Neocaridina denticulata | 50,000 (39,063–65,625) | 16,875 (12,590–26,631) | 67,500 (51,680–90,901) | 27,500 (21,484–37,813) | 11,875 (8,906–15,586) | 16,875 (12,887–23,203) |
| 5 | Procambarus spec. | 352 (264–461) | 166 (135–228) | 479 (377–598) | 195 (153–244) | 85 (69–111) | 132 (107–181) |
| 6 | Chironomus riparius | 93 (70–111) | 33 (26–44) | 127 (99–143) | 51 (42–60) | 22 (17–26) | 33 (27–39) |
| 7 | Anax imperator | 620 (530–673) | 347 (280–390) | 830 (706–913) | 339 (297–373) | 149 (130–158) | 264 (235–298) |
| 8 | Cloeon dipterum | 134 (117–155) | 49 (45–62) | 181 (158–203) | 73 (64–85) | 32 (28–36) | 48 (45–57) |
| 9 | Notonecta maculata | 1,758 (1,636–1,978) | 605 (563–691) | 2,383 (2,215–2,606) | 967 (897–1,069) | 413 (382–455) | 605 (568–681) |
| 10 | Paraponyx stratiotata | 566 (419–743) | 352 (286–468) | 762 (583–934) | 332 (228–415) | 142 (112–181) | 293 (253–403) |
| 11 | Plea minutissima | 576 (514–641) | 208 (184–334) | 781 (691–854) | 317 (281–352) | 135 (122–153) | 205 (183–256) |
| 12 | Ranatra linearis | 2,031 (1,746–2,380) | 674 (590–1,179) | 2,754 (2,410–3,098) | 1,113 (939–1,287) | 474 (408–548) | 684 (555–801) |
| 13 | Sialis lutaria | 264 (204–338) | 88 (69–110) | 352 (275–439) | 144 (113–180) | 61 (49–76) | 88 (69–110) |
| Median HP 5 log‐normal (95% confidence interval) | 34 (15–120) | 14 (5.9–54) | 45 (20–160) | 19 (8.2–69) | 8.0 (3.4–30) | 13 (5.4–48) | |