Acid Gases Acetic Acid Acetone Acetylene Adenosine Triphosphate (ATP) Alcohol Alkalinity Ammonia Aromatic Isocyanates (TDI & MDI) Arsine Bacteria/APC Benzene Bromine Butane Carbohydrazide Carbon Dioxide Carbon Monoxide Chloride Chlorine Chlorine Dioxide Chromate COD Combustibles Copper Cyanide DEHA Detergents Diborane Dimethylamine E. Coli Ethane Ethanol Ethylene Ethylene Oxide Fluoride Fluorine Formaldehyde Freon Germane Glutaraldehyde Glycol Hardness Helium Hexane Hydrazine Hydride HydroCarbons Hydrogen Hydrogen Bromide Hydrogen Chloride Hydrogen Cyanide Hydrogen Fluoride Hydrogen Peroxide Hydrogen Selenide Hydrogen Sulfide Hypochlorite Iodine Iron Isobutane Isobutylene Manganese Mercaptobenzothiazole Mercury Methane Molybdate Monochloramine Nitrate Nitric Oxide Nitrite Nitrogen Nitrogen Dioxide Nitrogen Oxides NMHC Oxygen Ozone Particulate Matter Pentane Peracetic Acid Perchloroethylene pH Phenols Phosgene Phosphate Phosphine Silane Silica Sodium Persulfate Sulfate Sulfide Sulfite Sulfur Dioxide Sulfur Hexafluoride Thiosulfate Total Dissolved Solids (TDS) VOC Zinc