Division B Information and alert thresholds for ozone
United Kingdom
| For the implementation of Article 24, the exceedance of the threshold is to be measured or predicted for three consecutive hours. | ||
| Purpose | Averaging period | Threshold |
|---|---|---|
| Information | 1 hour | 180 μg/m3 |
| Alert | 1 hourf1 | 240 μg/m3 |
Annotations
Footnotes
- f1
-
For the implementation of Article 24, the exceedance of the threshold is to be measured or predicted for three consecutive hours.