Ozone
O₃Ozone (O₃) is a pale blue gas with a distinctive sharp, chlorine-like smell, often described as the fresh smell after thunderstorms. While stratospheric ozone protects Earth from UV radiation, ground-level ozone is a harmful pollutant and a key component of smog. Ozone is produced by electrical discharges, UV light, and as a byproduct of certain equipment including photocopiers, laser printers, and arc welding. Industrial applications include water treatment, air purification, and bleaching. OSHA PEL is 0.1 ppm TWA. Ozone is highly oxidizing and toxic to the respiratory system. Detection is required in water treatment ozonation systems, print shops, and areas with high electrical discharge activity.
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Key Information
Essential safety and exposure information for Ozone
Health Effects
- Respiratory issues
- chest pain
- coughing
- throat irritation
- and aggravation of asthma and other lung diseases.
Common Sources
- Industrial processes
- water treatment
- food processing
- and formed by UV light reactions with pollutants.
Exposure Limits
- OSHA PEL
- 0.1 ppm
- NIOSH REL
- 0.1 ppm (C)
- ACGIH TLV
- 0.05-0.2 ppm
Regulatory Status
- OSHA PEL
- 0.1 ppm TWA
- NIOSH REL
- 0.1 ppm ceiling
- IDLH
- 5 ppm
- ACGIH TLV
- 0.05-0.1 ppm (work-dependent)
- EPA
- NAAQS Criteria Pollutant
- Standard
- 0.070 ppm (8-hour)
Detection Requirements
- Sensor Technology
- Electrochemical or Metal Oxide Semiconductor
- Detection Range
- 0-1 ppm (safety) or 0-10 ppm (industrial)
- Response Time
- <60 seconds (T90)
- Calibration Frequency
- Semi-annual to annual
- Alarm Setpoints
- Low 0.08 ppm, High 0.1 ppm (OSHA PEL)
Related Applications
Industries and environments where Ozone detection is critical
Wastewater Treatment
Hydrogen sulfide, methane, and oxygen monitoring for pump stations, digesters, and enclosed treatment areas
Breweries
Gas detection and monitoring of CO2, O2, and Ozone in breweries ensures the safety of patrons and employees.
Welding Shops
Combustible gas, oxygen, and fume detection for fabrication facilities and metal working environments
Pools & Aquatics
Gas detection systems for monitoring leaks within indoor pools ensures the health and safety of swimmers and employees.
Commercial Kitchens
Toxic and combustible gas hazards should be monitored in commercial kitchens to ensure a safe working environment.
Schools
Continuous monitoring of carbon monoxide, carbon dioxide, natural gas, and nitrogen dioxide protects students and staff across school facilities - from boiler rooms and science labs to bus loading areas and cafeteria kitchens.
Wineries
Gas detection and monitoring in wineries is imperative due to a significant amount of CO2 generated during fermentation.
Detection Solutions
Sensors and detectors for Ozone monitoring
Related Gases
Other Toxic Gases we detect