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)
Detection Solutions Coming Soon
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