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| HMs Parameters | As | Cd | Cr | Hg | Pb |
| AB AG AQ AP BZ (control) BB FI HL JQ KA NB1 NB2 OG AW WA WL | 4.24 ND ND 4.90 ND ND ND 4.10 ND 5.90 ND 4.06 0.92 5.17 4.43 6.30 | 8.30 8.03 5.90 10.62 2.33 5.70 8.03 15.02 7.51 12.43 11.40 12.70 5.70 13.73 15.80 16.80 | 36.52 26.7 36.52 51.00 20.34 38.73 45.40 58.70 32.10 49.80 47.60 48.70 35.41 67.50 67.50 56.43 | 0.90 0.91 ND 3.73 ND ND ND 2.32 ND 5.10 2.32 4.12 ND 5.90 ND 8.73 | 17.67 17.70 13.11 23.40 12.00 19.40 17.70 27.40 16.50 27.40 22.00 26.80 12.54 30.21 29.10 30.21 |