Part IV LEAD
| Averaging Period | Limit value | Margin of tolerance | Date by which limit value is to be met | |
|---|---|---|---|---|
| Annualr limit value for the protection of human health | Calendar year | 0.5μg/m3 PM10 | 100% 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 |