ChromiumChromium CompoundsChromatesChromium AlloysRNA, BacterialWeldingPotassium DichromateChromium IsotopesCarcinogens, EnvironmentalTanningChromium RadioisotopesElectroplatingDiphenylcarbazideSpectrophotometry, AtomicMetals, HeavyNickelWater Pollutants, ChemicalCobaltStainless SteelSodium CompoundsHazardous WasteSoil PollutantsAir Pollutants, OccupationalPterygiumTrace ElementsOccupational Exposure