The detection included COD, NH + 4 N, NO 3 N, NO 2 N, DO, P, pH and heavy metals such as Pb, Cr, Cd, Mn, Zn, Cu, Fe, Al and so on.

• 监测内容包括 :化学需氧量 (COD)、氨氮 (NH+ 4 N)、硝酸盐 (NO 3 N)、亚硝酸盐 (NO 2 N )、溶解氧 (DO)、磷 (P)、酸度和重金属 (Pb、Cr、Cd、Zn、Mn、Cu、Fe、Al)。