I2 TOXIC CONTAMINATION << Main contaminants, their concentrations and sources >> (Qk) SITE: Station 1 YEAR: 1985 Name of contaminant Range of concentration [ppm] ------------------------------------------------------ Cd <0.002 CN, Organic P N.D. PCB, Alkyl-Hg N.D. Pb <0.02 Cr(III) <0.05 As <0.02 Total Hg <0.005 CNP <0.00001