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APPENDIX G - <br />LITERATURE INHIBITION VALUES <br />Reported Range of Activated Sludge <br />Pollutant Inhibition Threshold References* <br />Levels, mg/L <br />METALS/NONMETAL INORGANICS <br />Ammonia <br />480 <br />(4) <br />Arsenic <br />0.1 <br />(1), (2), (3) <br />Cadmium <br />1 -10 <br />(2),(3) <br />Chromium (VI) <br />1 <br />(2),(3) <br />Chromium (III) <br />10-50 <br />(2),(3) <br />Chromium (Total) <br />1-100 <br />(1) <br />Copper <br />1 <br />(2), (1), (3) <br />Cyanide <br />0.1-5 <br />5 <br />(1), (2), (3) <br />(1) <br />Iodine <br />10 <br />(4) <br />Lead <br />1.0-5.0 <br />10-100 <br />(3) <br />(1) <br />Mercury <br />0.1 - 1 <br />2.5 as Hg (II) <br />(2), (3) <br />(1) <br />Nickel <br />1.0-2.5 <br />5 <br />(2),(3) <br />(1) <br />Sulfide <br />25-30 <br />(4) <br />Zinc <br />0.3-5 <br />5-10 <br />(3) <br />(1) <br />ORGANICS <br />Anthracene <br />500 <br />(1) <br />Benzene <br />100-500 <br />125-500 <br />(3) <br />(1) <br />2 -Chlorophenol <br />5 <br />20-200 <br />(2) <br />(3) <br />1,2 Dichlorobenzene <br />5 <br />(2) <br />1,3 Dichlorobenzene <br />5 <br />(2) <br />1,4 Dichlorobenzene <br />5 <br />(2) <br />2,4-Dichlorophenol <br />64 <br />(3) <br />2,4 Dimethylphenol <br />40- 200 <br />(3) <br />2,4 Dinitrotoluene <br />5 <br />(2) <br />1,2-Diphenylhydrazine <br />5 <br />(2) <br />Ethylbenzene <br />200 <br />(3) <br />Hexachlorobenzene <br />5 <br />(2) <br />Naphthalene <br />500 <br />500 <br />500 <br />(1) <br />(2) <br />(3) <br />Nitrobenzene <br />30-500 <br />500 <br />500 <br />(3) <br />(1) <br />(2) <br />G-1 <br />