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Page 11 of 11
Limit Values for the protection of human health
Pollutant
|
Averaging period |
Limit value*
|
Date by which value is to be met |
| Benzene |
Calendar year |
5 µg/m3 (1.54 ppb) |
1 January 2010 |
| Carbon monoxide (CO) |
8-hour, rolling basis |
10 mg/m3 (8.6 ppm) |
1 January 2005 |
Lead
|
Calendar year
|
0.5 µg/m3 |
1 January 2005 or, in specific cases, 1 January 2010 |
| Nitrogen dioxide (NO2) |
1-hour |
200 µg/m3 (105 ppb), not to be exceeded > 18 times a calendar year
|
1 January 2010 |
| Nitrogen dioxide (NO2) |
Calendar year |
40 µg/m3 (21 ppb) |
1 January 2010 |
Ozone (O3)
|
Maximum daily 8-hour mean Target Value |
120 µg/m3 (60 ppb), not to be exceeded > 25 days a calendar year averaged over 3 years |
1 January 2010
|
|
Particulate matter less than 10 microns in diameter Calendar year (PM10), Gravimetric**
|
24-hour
|
50 µg/m3, not to be exceeded > 35 times a calendar year |
1 January 2005 |
| Calendar year |
40 µg/m3 |
1 January 2005 |
| PM2.5 |
Calendar year |
25 µg/m3
|
1 January 2015 |
Calendar year, exposure reduction
|
20 µg/m3 |
1 January 2015 |
| Exposure reduction |
0-20% urban background reduction, to meet 18 µg/m3 by 2020.
|
between 2010 & 2020 |
| Sulphur dioxide (SO2) |
1-hour |
350 µg/m3 (132ppb), not to be exceeded > 24 times a calendar year
|
1 January 2005 |
24-hour
|
125 µg/m3 (47ppb), not to be exceeded > 3 times a calendar year
|
1 January 2005 |
| Arsenic (As) |
Calendar year |
Target value 6 ng/m3 |
1 January 2012 |
Cadmium (Cd)
|
Calendar year |
Target value 5 ng/m3 |
1 January 2012 |
Nickel (Ni)
|
Calendar year |
Target value 20 ng/m3
|
1 January 2012 |
Polycyclic Aromatic Hydrocarbons (PAH)
|
Calendar year |
Target value 1 ng/m3 (expressed as Benzo(a)pyrene)
|
1 January 2012 |
| Limit Values for the protection of vegetation (NOx) and ecosystems (SO2) |
| Oxides of nitrogen (NOx) |
Calendar year |
30 µg/m3 |
19 July 2001 |
| Sulphur dioxide (SO2) |
Calendar year & winter (1 Oct to 31 Mar) |
20 µg/m3 |
19 July 2001 |
* Limit Value is legally binding on member states. A target value is to be attained as far as possible by the attainment date and so is less strict than a limit value. ** Gravimetric refers to the method of measuring PM 10
|