Paragraph 1.1 Limit values for sulphur dioxide
| Averaging Period | Limit value | Margin of tolerancef1 | Date by which limit value is to be met | |
|---|---|---|---|---|
1 Hourly limit value for the protection of human health | 1 hour | 350 μg/m3, not to be exceeded more than 24 times a calendar year | 150 μg/m3 (43%) on 19 July 1999, reducing on 1 January 2001 and every 12 months thereafter by equal annual percentages to reach 0% by 1 January 2005 | 1 January 2005 |
2 Daily limit value for the protection of human health | 24 hours | 125 μg/m3, not to be exceeded more than 3 times a calendar year | None | 1 January 2005 |
3 Limit value for the protection of ecosystems | Calendar year and winter (1 October to 31 March) | 20 μg/m3 | None | 19 July 2001 |
Annotations
Footnotes
- f1
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The figures for Margins of Tolerance for each of the relevant pollutants given in this Schedule are calculated from those given in Annex 1 of Directive 99/30/EC. This gave a figure above the limit value for each relevant pollutant, reducing by equal annual percentages from the date of entry into force of that Directive in 1999.