Part I Information on ozone levels
The following information on ozone concentrations must be obtained and collated:
| Type of station | Level | Averaging /accumulation time | Provisional date for each month from April to September | Report for each year | |
|---|---|---|---|---|---|
(a) in this Schedule, “AOT40” has the same meaning as in paragraph (d) of Part I to Schedule 1. | |||||
(b) maximum daily 8-hour mean. | |||||
| Information threshold | Any | 180μg/m3 | 1 hour | — for each day with any exceedance: date, total hours of exceedance, maximum 1 hour ozone and related NO2 values when required. — monthly 1 hour maximum ozone. | -for each day with any exceedance: date, total hours of exceedance, maximum 1 hour ozone and related NO2 values when required. |
| Alert threshold | Any | 240μg/m3 | 1 hour | — for each day with any exceedance: date, total hours of exceedance, maximum 1 hour ozone and related NO2 values when required. | — for each day with any exceedance: date, total hours of exceedance, maximum 1 hour ozone and related NO2 values when required. |
| Health protection | Any | 120μg/m3 | 8 hours | — for each day with any exceedance: date, 8 hours maximum f1 | — for each day with any exceedance: date, 8 hours maximum |
| Vegetation protection | Suburban, rural, rural background | AOT40 f2 = 6,000 μg/m3·h | 1 hour, accumulated from May to June | Value | |
| Forest protection Materials | Suburban, rural, rural background Any | AOT40 =20,000 μg/m3·h 40μg/m3 | 1 hour, accumulated from April to September 1 year | Value Value | |
Annotations
Footnotes
- f1
(b)
maximum daily 8-hour mean.
- f2
(a)
in this Schedule, “AOT40” has the same meaning as in paragraph (d) of Part I to Schedule 1.