Table 2 Summary of the Effect Time (ETx) for survival (LTx) and reproduction for Enchytraeus crypticus when exposed to Cu (1400 and 180 mg Cu/kg DW soil for CuO-NPs and CuCl2, respectively) in LUFA 2.2 soil.

From: Shorter lifetime of a soil invertebrate species when exposed to copper oxide nanoparticles in a full lifespan exposure test

  Survival
LT10 LT20 LT50 LT80 Model & parameters
Control 127 157 218 260 Threshold 2P
(117 < CI < 173) (151 < CI < 164) (207 < CI < 227) (242 < CI < 278) (S:0.006; Y0: 19.1)
CuCl2 77 113 175 237 Logistic 2P
(59 < CI < 95) (102 < CI < 125) (167 < CI < 184) (218 < CI < 256) (S:0.006; Y0:19.3)
CuO-NPs 23 64 145 204 Threshold 2P
(n.d.) (40 < CI < 88) (130 < CI < 160) (175 < CI < 233) (S:0.005; Y0:19.7)
  Reproduction
ET 10 ET 20 ET 50 ET 80 Model & parameters
Control 110 128 158 188 Logistic 2P
(99 < CI < 121) (120 < CI < 135) (153 < CI < 163) (179 < CI < 197) (S:0.012; Y0:110.9)
CuCl2 110 120 138 155 Logistic 2P
(101 < CI < 118) (114 < CI < 126) (134 < CI < 142) (149 < CI < 162) (S:0.020; Y0:100.23)
CuO-NPs 23 48 92 135 Logistic 2P
(10 < CI < 36) (39 < CI < 57) (86 < CI < 97) (125 < CI < 145) (S:0.008; Y0:97.7)
  1. n.d. = not determined. 95% Confidence Intervals (CI) are shown in brackets.