Read the result with the test conditions attached.
This reference organizes reported ozone effects on bacteria, viruses, molds, fungi, biofilm, organics, and selected contaminants without separating a result from its concentration, contact time, medium, temperature, method, and source.
A name on a kill chart is not enough.
Reduction or inactivation data must identify the organism or contaminant, starting concentration, ozone exposure, contact time, medium, test method, endpoint, laboratory or publication, and limitations.
Publish O3 Science and third-party reports with identifying source details and readable result tables.
Continue →02Field EvidenceKeep laboratory evidence separate from crop and operational field outcomes.
Continue →03Technical QuestionsRequest the underlying source or discuss testing for a specific application.
Continue →What you see is a symptom. The system is sized to the load.
Color, staining, taste, odor, slime, turbidity, and plugging help identify a problem, but they do not establish the required ozone dose. Treatment is engineered from testing, flow, contaminant mass, ozone demand, transfer efficiency, contact time, and the required finished-water result.
Yellow, orange, red, brown, or black staining can indicate oxidized metals or deposits. Testing must distinguish dissolved metals, precipitated solids, and biological growth.
Earthy, musty, metallic, sulfur-like, or organic odors may have different causes. Oxidation, filtration, adsorption, or multiple treatment stages may be required.
Orange or reddish-brown slime can be associated with iron-oxidizing bacteria. Biofilm thickness, iron content, flow, and competing material affect treatment demand.
Suspended solids and precipitates can increase ozone demand, interfere with contact, restrict pipes, and plug filters or irrigation emitters.
Document color, odor, slime, staining, flow, pressure, and plugging.
Measure the organism or contaminant, water chemistry, solids, and baseline conditions.
Account for everything in the stream that can react with or consume ozone.
Set delivered concentration, transfer, mixing, contact time, flow, and downstream treatment.
Test the treated stream and confirm the actual endpoint under operating conditions.
Rapid response requires complete test context.
O3 Science testing recorded an unusually rapid response for iron bacteria. Earlier trials were below the method’s reliable exposure/time resolution; a measurable result was obtained after repeated testing. Exact values will be published only with their units, medium, method, starting load, delivered ozone, and endpoint attached.
Oxidize first, then capture and remove.
Ozone can oxidize arsenite—arsenic(III), As(III)—to arsenate—arsenic(V), As(V). Arsenate is generally easier to remove using an appropriate downstream process such as iron-based adsorption, coagulation and filtration, activated alumina, or other validated media. Both forms remain arsenic; oxidation alone does not remove arsenic or make the finished water safe.
Transformation is not always removal.
Ozone can oxidize, inactivate, transform, or destabilize target material. Depending on the application, that reaction may convert dissolved material into a form that is easier to settle, adsorb, filter, biologically treat, or otherwise remove. Ozone is therefore often one engineered stage in a complete treatment process—not automatically the entire solution.
Screen or prefilter when solids and competing material would interfere.
Apply and transfer the required ozone dose under controlled conditions.
Provide adequate mixing and reaction time for the intended endpoint.
Use settling, media filtration, adsorption, membranes, or activated carbon where appropriate.
Test the finished stream and adjust the treatment train from measured results.
Media selection matters: sediment filters, specialty iron or arsenic media, activated-carbon or carbon-block filters, adsorption media, membranes, and biological processes perform different jobs. The correct combination depends on the contaminant, its post-oxidation form, flow, loading, regulations, and required outcome.
Dialed in for each flow, load, and sanitation objective.
O3 Science systems are designed with adjustable operating controls so the delivered ozone can be commissioned for the actual water flow, ozone demand, contaminant or organism load, contact time, treatment equipment, and required sanitation endpoint. The objective is not simply to generate the highest possible ozone output. It is to establish an effective verified treatment range while controlling residual ozone and potential transfer into the surrounding air.
Flow, water quality, load, and baseline conditions.
Output, injection, transfer, mixing, and contact time.
Dissolved ozone, process response, and breathing-zone air where applicable.
Confirm the sanitation endpoint and refine settings from measured results.
Application-specific commissioning: settings used for a meat plant, fish processor, produce line, dairy, irrigation system, or other operation are not automatically interchangeable. Each installation requires its own evaluation, validation, operating procedure, and ongoing verification.
Supporting technical context: U.S. EPA assessment of ozone for color, taste, odor, iron, manganese and turbidity · EPA-indexed review of arsenic oxidation and removal · EPA arsenic drinking-water standard.
Clear language for unusually rapid results.
The historical notation “not susceptible” did not mean resistant to ozone. In this research record it meant the observed response occurred too quickly, or at too little ozone exposure, for the test method to assign a reliable time or dose.
Below the test’s measurable exposure/time threshold. A precise concentration or contact time should not be inferred when the method could not resolve it.
Bacteria, molds, fungi, and similar organisms are described using the laboratory’s measured reduction terminology. Viruses are described as inactivated, not killed.
Every numeric result must remain connected to its medium, ozone exposure, contact time, temperature, method, endpoint, laboratory, and source document.
Dissolved-ozone evidence
Organism or contaminant · starting concentration · dissolved ozone · contact time · water temperature · pH · endpoint · method · source.
Delivered-ozone evidence
Organism · delivered ozone · exposure time · temperature · relative humidity · chamber or room conditions · recovery method · endpoint · source.
Verification status: historical chart entries will be matched to their original laboratory reports before exact numeric values are published in the redesigned tables.
Performance-based technology—not ozone alone.
All ozone systems are not created equal. Results depend on generation, conditioning, transfer, application, control, and verification for the actual operating environment.
All ozone systems are not interchangeable.
Performance depends on how ozone is generated, conditioned, transferred, mixed, controlled, integrated with the full treatment train, monitored, and verified. O3 Science’s proprietary, patented technology is engineered around the actual application—not ozone output alone—to pursue the required result with adjustable, performance-based control.
Internal laboratory and field results.
These reported results come from O3 Science laboratory and field testing. They are presented separately from independent research and apply to the O3 system configurations and test conditions used.
A measurable result after six tests.
Earlier trials reacted below the practical measurement range. After six tests, O3 Science recorded the values shown above. They are preserved from the original test notation; their original units, medium, method, starting load, and endpoint will be attached when the source record is placed in the digital archive.
Do not use these values as equipment settings. Iron-bacteria treatment must be commissioned for flow, water chemistry, biofilm, iron concentration, solids, ozone demand, and the required result.
Reported 3,000–4,000× comparative result.
O3 Science reports repeated internal laboratory and field testing in which the measured sanitation performance of its aqueous-ozone process was approximately 3,000–4,000 times the bleach or chlorine comparison used in those tests. This is an O3 Science test result—not a universal oxidation-potential ratio for every ozone and chlorine product.
The process conditions source water, oxidizes reactive contaminants, filters and polishes the stream—including carbon-block treatment where specified—and then reinjects a controlled amount of ozone to create the final sanitation water.
Performance depends on the tested organism or target, concentrations, contact time, water conditions, flow, organic load, application method, and measured endpoint. Installation settings are established through application-specific commissioning and verification.
Supporting science—kept separate from O3 Science performance data.
These sources document ozone science, regulatory uses, and independently studied applications. They do not test, certify, or guarantee the performance of a particular O3 Science system.
Review of ozone inactivation evidence for viruses, Giardia cysts, Cryptosporidium oocysts, and surrogates—with emphasis on comparable methods and concentration-time conditions.
Open source →FOOD PROCESSINGFDA regulation · 21 CFR 173.368Authorizes ozone in gaseous and aqueous phases as an antimicrobial agent in food treatment, storage, and processing under prescribed conditions and current good manufacturing practice.
Open regulation →PROCESSING SANITATIONUSDA research projectResearch into ozone and other chlorine substitutes for sanitation and biological-growth control on food-processing contact surfaces.
Open source →PLANT PATHOGENSTexas A&M · PhytophthoraUniversity research examining ozone treatment conditions for Phytophthora capsici in recycled irrigation water.
Open study →WATER QUALITYEPA ozone assessmentTechnical discussion of ozone as an oxidant for color, taste, odor, algae, organics, sulfides, iron, manganese, turbidity, and disinfection.
Open source →ARSENICOxidation and downstream removalReview explaining oxidation of arsenite, As(III), to arsenate, As(V), followed by an appropriate adsorption, coprecipitation, softening, or filtration process.
Open source →Evidence rule: independent research may support a mechanism or application category, but every result remains attached to its source, medium, concentration, contact time, method, endpoint, and limitations. It is not relabeled as O3 Science laboratory data.
Scientific names explained.
The glossary helps readers understand what each entry represents without changing the organism name used in the source report.
Commonly called iron bacteria. Groups may include Gallionella, Leptothrix, and related organisms associated with orange or reddish-brown slime, staining, deposits, biofilm, and plugging.
Commonly called black mold. The exact species and test conditions must be identified; color alone does not establish mold identity.
Oomycetes commonly called water molds. They can spread through irrigation water and cause destructive root, crown, fruit, or foliar disease depending on the species and crop.
Commonly shortened to E. coli. Results must identify the strain or surrogate, medium, starting concentration, treatment conditions, and measured reduction.
Commonly called Listeria. A food-processing pathogen studied on products, water, and food-contact surfaces under specific treatment conditions.
A waterborne parasite that forms chlorine-tolerant oocysts. Ozone results are reported as inactivation under defined concentration-time and temperature conditions.
Research ownership & permitted use
Research initiated 1997 · Original compilation © 2015 Trent DeVoy Crapo · Licensed to Ozone Clean Pro in 2016 and O3 Science, Inc. · Expanded 2021 · Digital presentation © 2026 O3 Science, Inc. All rights reserved.
Scientific facts are presented with their stated source and context. The original selection, organization, classifications, explanations, charts, graphics, and digital presentation may not be commercially reproduced, republished, altered, stripped of attribution, or represented as another company’s performance data without written authorization. Read the full Intellectual Property & Proprietary Rights notice.