Ozone Exposure Risks
Ozone is a highly unstable substance with strong oxidizing power and high reactivity. It also exhibits strong toxicity at high concentrations. Since ozone is not easily absorbed by water, when introduced into the respiratory system, it reaches the deep part of the lungs and can cause respiratory disorders (pulmonary edema, etc.).
In Japan, the Japan Society for Occupational Health and the Japan Industrial Safety and Health Association specify
0.1 ppm as the control concentration in the working environment.
| Ozone concentration (ppm) | Effects and actions on living organisms |
|---|---|
| 0.01~0.02 ppm | Odor can be smelt. |
| 0.1 ppm | Strong odor, irritation of the nose and throat. |
| 0.2~0.5 ppm | Symptoms of decreased vision appear within 3-6 hours. |
| 0.5 ppm | The upper respiratory tract is clearly irritated. |
| 1~2 ppm | Headache, chest pain, upper respiratory tract dryness, and cough occur within 2 hours. |
| 5~10 ppm | Symptoms of increased pulse and pulmonary edema appeared. |
| 15~20 ppm | Small animals die within 2 hours. |
| 50 ppm | Danger for human life within 1 hour. |
For inquiries:
| Department | Environmental Catalyst Div. |
|---|---|
| Contact Form | |
| TEL | ARIOKA:+81-90-5398-5199 (Japanese, English) PIET:+81-80-4462-6530 (French, English) *Do not hesitate to reach out to us by using the contact form, we will come back to you as soon as possible. |