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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.