Ozone
Exposure Definition
Ground-level ozone (O3) is a secondary pollutant formed when nitrogen oxides and volatile organic compounds react in the presence of sunlight. It exacerbates respiratory conditions including asthma.
Proxies
| Name | Unit | Measurement | Data source |
|---|---|---|---|
| O3 | ppb | UV absorbance | EPA AQS |
Biological Systems Affected
respiratory
Ozone induces oxidative stress and airway inflammation
Sensitive Developmental Windows
childhood (0-18)
Developing lungs more susceptible
GxE Highlights
No GxE highlights recorded.
Tissue-Specific Notes
bronchial epithelium— inflammatory
References
- 1.EPA (2020). Ozone and respiratory health. [link]