Element | This study mean | This study range | SQG non polluted | SQG moderately polluted | SQG heavily polluted | ||
---|---|---|---|---|---|---|---|
Dry season | Rainy season | Dry season | Rainy season | ||||
Cd | 2.6 | 2.7 | 2.1–2.9 | 2.5–3.1 | – | – | > 6 |
Cr | 27.2 | 24.4 | 16.2–43.7 | 18.3–29.4 | < 25 | 25–75 | > 75 |
Cu | 5.1 | 3.4 | 1.6–15.3 | 2.1–6.2 | < 25 | 25–50 | > 50 |
Pb | 153.8 | 124.2 | 124.4–256.4 | 101.4–133.7 | < 40 | 40–60 | > 60 |
Ni | 23.6 | 20.6 | 15.6–36.2 | 14.6–24 | < 20 | 20–50 | > 50 |
Zn | 25.8 | 20.2 | 4.0–110.0 | 4.8–38.2 | < 90 | 90–200 | > 200 |