## 3 Results
### Lower Intertidal Zone
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline
**Sample** & **Depth** & **Cr** & **Ni** & **Cu** & **Zn** & **As** & **Cd** & **Hg** & **Pb** \\ \hline \multirow{4}{*}{S9} & 0–10 cm & 97.92 \(\pm\) & 26.90 \(\pm\) & 34.77 \(\pm\) & 95.15 \(\pm\) & 21.47 \(\pm\) & 0.48 \(\pm\) & 0.33 \(\pm\) & 37.19 \(\pm\) \\  & 1.89 & 0.33 & 0.47 & 0.60 & 0.16 & 0.02 & 0.08 & 1.16 \\ \cline{2-10}  & 10–20 & 98.50 \(\pm\) & 29.08 \(\pm\) & 41.45 \(\pm\) & 177.89 \(\pm\) & 78.47 \(\pm\) & 2.58 \(\pm\) & 0.23 \(\pm\) & 62.33 \(\pm\) \\  & cm & 4.37 & 0.78 & 2.14 & 32.77 & 31.50 & 1.06 & 0.04 & 12.11 \\ \cline{2-10}  & 20–30 & 98.95 \(\pm\) & 29.41 \(\pm\) & 38.98 \(\pm\) & 102.79 \(\pm\) & 22.19 \(\pm\) & 0.66 \(\pm\) & 0.22 \(\pm\) & 37.00 \(\pm\) \\  & cm & 5.53 & 1.66 & 2.98 & 5.64 & 0.85 & 0.03 & 0.04 & 0.49 \\ \hline \multirow{4}{*}{S10} & 0–10 cm & 90.08 \(\pm\) & 25.59 \(\pm\) & 37.30 \(\pm\) & 105.57 \(\pm\) & 21.03 \(\pm\) & 0.50 \(\pm\) & 0.37 \(\pm\) & 40.07 \(\pm\) \\  & 0.76 & 0.88 & 2.07 & 9.01 & 1.42 & 0.00 & 0.09 & 4.72 \\ \cline{2-10}  & 10–20 & 100.86 \(\pm\) & 26.89 \(\pm\) & 35.79 \(\pm\) & 106.34 \(\pm\) & 20.52 \(\pm\) & 0.53 \(\pm\) & 0.32 \(\pm\) & 36.49 \(\pm\) \\  & cm & 5.97 & 1.13 & 2.08 & 10.38 & 0.90 & 0.10 & 0.04 & 2.20 \\ \cline{2-10}  & 20–30 & 98.85 \(\pm\) & 27.64 \(\pm\) & 39.26 \(\pm\) & 97.24 \(\pm\) & 21.03 \(\pm\) & 0.58 \(\pm\) & 0.28 \(\pm\) & 37.86 \(\pm\) \\  & cm & 3.83 & 0.56 & 2.08 & 2.00 & 1.75 & 0.04 & 0.02 & 1.33 \\ \hline \multirow{4}{*}{S11} & 0–10 cm & 91.48 \(\pm\) & 25.98 \(\pm\) & 32.51 \(\pm\) & 128.32 \(\pm\) & 19.82 \(\pm\) & 0.50 \(\pm\) & 2.84 \(\pm\) & 36.42 \(\pm\) \\  & 6.88 & 0.29 & 0.89 & 32.57 & 1.06 & 0.05 & 2.42 & 2.21 \\ \cline{2-10}  & 10–20 & 98.17 \(\pm\) & 27.82 \(\pm\) & 36.72 \(\pm\) & 124.35 \(\pm\) & 49.26 \(\pm\) & 1.01 \(\pm\) & 0.78 \(\pm\) & 47.11 \(\pm\) \\  & cm & 4.36 & 1.24 & 2.38 & 27.78 \(\pm\) & 28.19 & 0.37 & 0.42 & 10.30 \\ \cline{2-10}  & 20–30 & 159.26 \(\pm\) & 34.98 \(\pm\) & 37.11 \(\pm\) & 110.31 \(\pm\) & 22.35 \(\pm\) & 0.92 \(\pm\) & 0.49 \(\pm\) & 40.52 \(\pm\) \\  & cm & 56.12 & 8.21 & 2.29 & 12.89 & 0.87 & 0.16 & 0.19 & 0.47 \\ \hline \multirow{4}{*}{S12} & 0–10 cm & 90.15 \(\pm\) & 30.10 \(\pm\) & 32.75 \(\pm\) & 104.86 \(\pm\) & 17.86 \(\pm\) & 0.49 \(\pm\) & 0.31 \(\pm\) & 36.01 \(\pm\) \\  & 9.27 & 5.03 & 1.79 & 2.56 & 1.80 & 0.03 & 0.04 & 3.13 \\ \cline{2-10}  & 10–20 & 107.01 \(\pm\) & 32.14 \(\pm\) & 37.97 \(\pm\) & 108.61 \(\pm\) & 19.92 \(\pm\) & 0.71 \(\pm\) & 0.35 \(\pm\) & 44.19 \(\pm\) \\  & cm & 2.19 & 2.67 & 1.16 & 5.50 & 0.44 & 0.06 & 0.04 & 0.12 \\ \cline{2-10}  & 20–30 & 103.50 \(\pm\) & 32.20 \(\pm\) & 40.53 \(\pm\) & 115.91 \(\pm\) & 23.56 \(\pm\) & 0.83 \(\pm\) & 0.32 \(\pm\) & 46.89 \(\pm\) \\  & cm & 3.03 & 0.53 & 0.90 & 3.32 & 0.64 & 0.01 & 0.03 & 0.93 \\ \hline \multirow{4}{*}{S13} & 0–10 cm & 95.03 \(\pm\) & 30.16 \(\pm\) & 44.76 \(\pm\) & 118.77 \(\pm\) & 23.11 \(\pm\) & 0.60 \(\pm\) & 0.12 \(\pm\) & 40.40 \(\pm\) \\  & 6.05 & 2.46 & 3.44 & 6.86 & 1.50 & 0.03 & 0.02 & 1.88 \\ \cline{2-10}  & 10–20 & 99.64 \(\pm\) & 32.35 \(\pm\) & 43.79 \(\pm\) & 115.31 \(\pm\) & 22.60 \(\pm\) & 0.80 \(\pm\) & 0.12 \(\pm\) & 44.69 \(\pm\) \\  & cm & 6.54 & 0.37 & 1.12 & 14.37 & 0.39 & 0.08 & 0.02 & 0.87 \\ \cline{2-10}  & 20–30 & 93.22 \(\pm\) & 29.44 \(\pm\) & 40.58 \(\pm\) & 105.90 \(\pm\) & 22.60 \(\pm\) & 0.66 \(\pm\) & 0.11 \(\pm\) & 38.80 \(\pm\) \\  & cm & 5.56 & 2.14 & 0.71 & 1.81 & 0.77 & 0.02 & 0.01 & 1.92 \\ \hline \multirow{4}{*}{Average} & 99.44 \(\pm\) & 29.25 \(\pm\) & 38.99 \(\pm\) & 113.96 \(\pm\) & 31.02 \(\pm\) & 1.23 \(\pm\) & 0.38 \(\pm\) & 45.36 \(\pm\) \\  & 2.59 & 0.47 & 0.75 & 4.55 & 4.44 & 0.24 & 0.11 & 2.55 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Cont.