ChlorineChlorine CompoundsDisinfectantsChloraminesDisinfectionSwimming PoolsOxidesSodium HypochloritePorphyrinsWater MicrobiologyWater SupplyWater PurificationBrominePhotochemotherapyHalogenationPhotosensitizing AgentsMesoporphyrinsHypochlorous AcidChlorophenolsAroclorsDecontaminationSterilizationVirus InactivationHydrocarbons, ChlorinatedPeracetic AcidCalicivirus, FelineGasesGiardiaPolychlorinated BiphenylsColony Count, MicrobialOzoneHydrogen-Ion ConcentrationSanitary EngineeringPoliovirusElectrolysisInhalation ExposureBiodegradation, EnvironmentalChemical Warfare AgentsFiltrationCoccidiaMethyl ChlorideFresh WaterChloride PeroxidaseRadiation-Sensitizing AgentsHalogensWater PollutionRecyclingTemperature