. 2023 Jan 16;9(1):e13017. doi: 10.1016/j.heliyon.2023.e13017

Table 3.

Soil pollution classification by the Nemerow Pollution Index (PI_Nemerow).

Class	I	II	III	IV	V
PI_Nemerow	≤0.7	0.7–1	1–2	2–3	≥3
Soil quality	uncontaminated	Danger range	Low contamination	Moderate contamination	Severe contamination