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Paragraph 1.1 Limit values for sulphur dioxide

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

Averaging periodLimit valueMargin of tolerancef1Date by which limit value is to be met
1

Hourly limit value for the protection of human health

1 hour350 μg/m3, not to be exceeded more than 24 times a calendar year120 μg/m3 on 19th July 2001, reducing on 1st January of each following year by equal annual amounts to reach 0 μg/m3 by 1st January 20051st January 2005
2

Daily limit value for the protection of human health

24 hours125 μg/m3, not to be exceeded more than 3 times a calendar yearNone1st January 2005
3

Limit value for the protection of ecosystems

Calendar year and winter (1st October to 31st March)20 μg/m3None19th July 2001

Annotations

Footnotes

f1

The figures for margins of tolerance for each of the relevant pollutants given in this Schedule are calculated from those given in Annexes I to IV to Directive 99/30/EC.