Table 2 Individual heavy metal potential ecological hazard indices Ei and sums.

From: Heavy metal pollution migration and its ecological impact on microbial communities in the karst region of Guangxi

Point

As

Zn

Cd

Pb

RI

S1

II

I

I

I

I

S2

I

I

I

I

I

S3

III

I

I

I

II

S4

V

I

I

I

III

S5

III

I

I

I

I

S6

III

I

I

I

II

S7

I

I

I

I

I

S8

III

I

I

I

I

S9

I

I

I

I

I

S10

IV

I

I

I

II

S11

I

I

II

I

I

S12

I

I

I

I

I

  1. Note: I, II, III, IV, V indicates the risk level, and the highest RI is IV.
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