Table 3.
Descriptive statistics | Element (μg/L) | |||
---|---|---|---|---|
Fe | Cu | Zn | Se | |
Mean | 1,183 | 392 | 7,148 | 23 |
Median | 1,080 | 383 | 7,667 | 23 |
SD | 602 | 174 | 2,316 | 8 |
Min value | 320 | 50 | 1,300 | 11 |
Max value | 2,410 | 740 | 10,900 | 42 |
IQR | 802.5 | 210.5 | 3,236.5 | 10 |
Literature values | ||||
Ref. [17] | 186–2,628 | 1,869–22,050 | 34.2–187.6 | |
Ref. [32] | 110–990 | 2,960–23,090 | 22.9–54.2 | |
Ref. [13], [33]* | 849 ± 154 | 590 ± 50* | 3,760 ± 510* | 15.2 ± 2.3* |
Ref. [19], [26]* | 390 ± 220 | 10,120 ± 5,080 | 29 ± 10* | |
Ref. [31] | 570 ± 336 | 6,040 ± 3,590 |
* refers to Elem. Conc.