Through related analysis, Au, Ag, Cu, Pb, Zn, As, Sb, Bi, Hg and Ni are direct correlation, and are negative correlation with Hg and Sn.

• 通过相关分析,金、银、铜、铅、锌、锑、铋、钴、镍呈正相关,与汞、锡呈负相关。