Analisis mutu air Danau Area Gelanggang Expo dengan metode indeks pencemaran di kota Jayapura

This study aims to determine the current status of lake water quality in Gelanggang Expo area using Pollution Index (IP) method. It is found that there has been pollution Lake Sentani with high concentrations certain pollutants, such as Nitrite NO2-N (0.06 - 0.15 mg/L), Phosphate PO4-P (0.2 0.45 Sulfide S-H2S (0.002 4.26 Cadmium (0.01 0.3 Chromium valence 6 (0.05 0.26 Copper (0.02 2.15 Zinc 0.5 Phenolic compounds (1 9.53 ?g/L), and free chlorine (0.03 2, 1 mg/L). The concentration these substances exceeded standard set by government through PP 82 2001 concerning management control. declared moderately polluted an IP value 6.78. caused eight parameters have standard, namely temperature, BOD, COD, Sulfide, Pb, Cu, Phenol, chlorine.