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Table 1 NOEC and EC 10 from tests with NM-300K and silver nitrate

From: Hazard assessment of a silver nanoparticle in soil applied via sewage sludge

  Potential ammonium oxidation Microbial biomass Respiration inhibition
  NOEC EC10 NOEC EC10 NOEC EC10
  (mg/kg dry soil) (mg/kg dry soil) (mg/kg dry soil) (mg/kg dry soil) (mg/L) (mg/L)
3 h NM-300K - - - - <9 27.9
(24.0 to 30.0)
Silver nitrate - - - - <1 1.1 (n.d.)
24 h NM-300K <0.56 0.6 >15.0 n.d. - -
(0.0 to 1.3)
Silver nitrate 0.56 0.9 <0.19 n.d. - -
(0.6 to 1.2)
7 days NM-300K <0.56 1.1 <0.56 n.d. - -
(n.d. to 1.7)
Silver nitrate n.d. 1.2 5.0 2.5 (n.d.) - -
(0.8 to 1.5)
28 days NM-300K <0.56 0.5 1.67 1.0 (n.d.) - -
(0.0 to 1.0)
Silver nitrate 0.56 1.4 n.d. n.d. (n.d.) - -
    (1.2 to 1.6)     
  1. (x) 95% confidence interval, n.d. not determined.