- Latest available (Revised)
- Original (As adopted by EU)
Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe
After exit day there will be three versions of this legislation to consult for different purposes. The legislation.gov.uk version is the version that applies in the UK. The EU Version currently on EUR-lex is the version that currently applies in the EU i.e you may need this if you operate a business in the EU.
The web archive version is the official version of this legislation item as it stood on exit day before being published to legislation.gov.uk and any subsequent UK changes and effects applied. The web archive also captured associated case law and other language formats from EUR-Lex.
EU Directives are being published on this site to aid cross referencing from UK legislation. After IP completion day (31 December 2020 11pm) no further amendments will be applied to this version.
Without prejudice to Annex I, the following criteria shall be used for checking validity when aggregating data and calculating statistical parameters:
a The requirements for the calculation of annual mean do not include losses of data due to the regular calibration or the normal maintenance of the instrumentation. | |
Parameter | Required proportion of valid data |
---|---|
One hour values | 75 % (i.e. 45 minutes) |
Eight hours values | 75 % of values (i.e. 6 hours) |
Maximum daily 8-hour mean | 75 % of the hourly running eight hour averages (i.e. 18 eight hour averages per day) |
24-hour values | 75 % of the hourly averages (i.e. at least 18 hour values) |
Annual mean | 90 %a of the one hour values or (if not available) 24-hour values over the year |
a Already in force since 1 January 2005 | |||
b The maximum daily eight hour mean concentration will be selected by examining eight hour running averages, calculated from hourly data and updated each hour. Each eight hour average so calculated will be assigned to the day on which it ends i.e. the first calculation period for any one day will be the period from 17:00 on the previous day to 01:00 on that day; the last calculation period for any one day will be the period from 16:00 to 24:00 on that day. | |||
c Already in force since 1 January 2005. Limit value to be met only by 1 January 2010 in the immediate vicinity of the specific industrial sources situated on sites contaminated by decades of industrial activities. In such cases, the limit value until 1 January 2010 will be 1,0 μg/m3. The area in which higher limit values apply must not extend further than 1 000 m from such specific sources. | |||
Averaging Period | Limit value | Margin of tolerance | Date by which limit value is to be met |
---|---|---|---|
Sulphur dioxide | |||
One hour | 350 μg/m3, not to be exceeded more than 24 times a calendar year | 150 μg/m3 (43 %) | —a |
One day | 125 μg/m3, not to be exceeded more than 3 times a calendar year | None | —a |
Nitrogen dioxide | |||
One hour | 200 μg/m3, not to be exceeded more than 18 times a calendar year | 50 % on 19 July 1999, decreasing on 1 January 2001 and every 12 months thereafter by equal annual percentages to reach 0 % by 1 January 2010 | 1 January 2010 |
Calendar year | 40 μg/m3 | 50 % on 19 July 1999, decreasing on 1 January 2001 and every 12 months thereafter by equal annual percentages to reach 0 % by 1 January 2010 | 1 January 2010 |
Benzene | |||
Calendar year | 5 μg/m3 | 5 μg/m3 (100 %) on 13 December 2000, decreasing on 1 January 2006 and every 12 months thereafter by 1 μg/m3 to reach 0 % by 1 January 2010 | 1 January 2010 |
Carbon monoxide | |||
maximum daily eight hour meanb | 10 mg/m3 | 60 % | —a |
Lead | |||
Calendar year | 0,5 μg/m3 c | 100 % | —c |
PM10 | |||
One day | 50 μg/m3, not to be exceeded more than 35 times a calendar year | 50 % | —a |
Calendar year | 40 μg/m3 | 20 % | —a |
Latest Available (revised):The latest available updated version of the legislation incorporating changes made by subsequent legislation and applied by our editorial team. Changes we have not yet applied to the text, can be found in the ‘Changes to Legislation’ area.
Original (As adopted by EU): The original version of the legislation as it stood when it was first adopted in the EU. No changes have been applied to the text.
Geographical Extent: Indicates the geographical area that this provision applies to. For further information see ‘Frequently Asked Questions’.
Show Timeline of Changes: See how this legislation has or could change over time. Turning this feature on will show extra navigation options to go to these specific points in time. Return to the latest available version by using the controls above in the What Version box.
Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:
This timeline shows the different versions taken from EUR-Lex before exit day and during the implementation period as well as any subsequent versions created after the implementation period as a result of changes made by UK legislation.
The dates for the EU versions are taken from the document dates on EUR-Lex and may not always coincide with when the changes came into force for the document.
For any versions created after the implementation period as a result of changes made by UK legislation the date will coincide with the earliest date on which the change (e.g an insertion, a repeal or a substitution) that was applied came into force. For further information see our guide to revised legislation on Understanding Legislation.
Use this menu to access essential accompanying documents and information for this legislation item. Dependent on the legislation item being viewed this may include:
Click 'View More' or select 'More Resources' tab for additional information including: