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. 2020 Mar 26;10(4):610. doi: 10.3390/nano10040610

Table 8.

Toxicity categories for terrestrial ecotoxicity.

Toxicity Categories EC50 (mg/kg Soil Dry Weight)
Very toxic (VT)/Acute 1 (A1) ≤ 10
Toxic (T)/Acute 2 (A2) > 10 – ≤ 100
Harmful (H)/Acute 3 (A3) > 100 – ≤ 1000