Table 1 Averages concentrations of heavy metals (mg/kg−1) from the investigated transect, on the tailing pond from Certeju de Sus - Romania, 2015.
Transect | As | Cu | Mn | Ni | Pb | Zn |
|---|---|---|---|---|---|---|
T1 | 178.1 (± 21.45) | 24.3 (± 2.17) | 863.6 (± 49.20) | 64.13 (± 19.47) | 153.68 (± 49.06) | 755.54 (± 269.82) |
T2 | 234.56 (± 56.12) | 24.14 (± 15.31) | 1054.2 (± 281.65) | 68.70 (± 13.73) | 159.6 (± 19.58) | 1028.54 (± 554.55) |
T3 | 211.04 (± 29.82) | 29.72 (± 6.65) | 1014.8 (± 202.72) | 68.25 (± 25.06) | 172.64 (± 34.84) | 672.86 (± 255.44) |
T4 | 225.36 (± 19.56) | 40.92 (± 6.52) | 1304.33 (± 600.56) | 33.51 (± 29.05) | 236.2 (± 47.287) | 608.8 (± 50.68) |
T5 | 268.37 (± 79.57) | 42.10 (± 9.05) | 1269.75 (± 378.80) | 56.07 (± 20.07) | 292.35 (± 90.37) | 681.15 (± 120.96) |
Legal normal values | 5 | 20 | 900 | 20 | 20 | 100 |
The alert values | 15–25 | 100–200 | 1500–2000 | 75–200 | 50–250 | 300–700 |
The intervention values | 25–50 | 200–500 | 2500–4000 | 150–500 | 100–1000 | 600–1500 |
