The former is specified as injurant cycanuric, 6 chromium, mercury and cadmium, etc 24, biochemical oxygen demand (BOD), chemical oxygen demand (COD), iron, Tin 16.

• 对前者指定的有害物为氰、6价铬、汞、镉等24项，对后者为生化需氧量(BOD)、化学需氧量(COD)、铁、锡等16项。