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Table 2 Levels of heavy metals on soils recorded from Chinapintza and La Pangui sites of Zamora-Chinchipe, Ecuador

From: Generalist arbuscular mycorrhizal fungi dominated heavy metal polluted soils at two artisanal and small − scale gold mining sites in southeastern Ecuador

Name of site

Levels of heavy metals in ppm

Al

Cd

Cr

Cu

Pb

Zn

Hg

Au

Chinapintza*

9426.83 ± 2211.24

4.25 ± 9.73

17.43 ± 3.51

131.84 ± 117.89

1501.25 ± 915.31

886.16 ± 595.30

26.26 ± 13.03

15.99 ± 7.13

La Pangui**

7922.37 ± 3556.19

3.13 ± 2.19

13.02 ± 8.50

94.83 ± 60.44

560.53 ± 283.53

460.42 ± 390.55

17.33 ± 12.88

9.58 ± 6.39

Soil quality reference***

 

1.4 – 22.0

64.0 – 87.0

63.0 – 91.0

70.0 – 600.0

200.0 – 360.0

6.6 – 50.0

 
  1. *Mean value of 4 data
  2. **Mean value of 6 data
  3. ***Canadian Council of Ministers of the Environment (2007). The lower level is a reference value for agricultural and higher level is for industrial use
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BMC Microbiology

ISSN: 1471-2180

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