Kemp, K., Ellermann, T., Brandt, J., Christensen, J., Ketzel, M., 2007. NERI Technical Report No. 623, 44 pp.
Summary and Conclusion
The Danish Air Quality Monitoring Programme (LMP IV) has been revised and is still under revision in accordance with the EU Frame-work Directive and the four daughter directives of SO2, NOx/NO2, PM10, lead, benzene, CO, ozone, arsenic, cadmium, mercury, nickel and polycyclic aromatic hydrocarbons. The data sets for year 2006 are almost complete for most stations. The monitoring programme consists of in total 10 stations. Also results from one station under the <st1:place w:st="on"><st1:PlaceType w:st="on">Municipality</st1:PlaceType> of <st1:PlaceName w:st="on">Copenhagen</st1:PlaceName></st1:place> are included in this report.
The concentrations in 2006 were almost the same as in 2005. Changes may mainly be due to meteorological conditions. Several exceedances of the limit value occurred for PM10, while 2 exceedances of the limit value + plus margin of tolerance were measured for NO2.
The limit value + the margin of tolerance for the annual average of NO2 (48 µg/m3 in 2006) was exceeded in <st1:City w:st="on"><st1:place w:st="on">Copenhagen</st1:place></st1:City> at the street stations on <st1:Street w:st="on"><st1:address w:st="on">H.C. Andersens Boulevard</st1:address></st1:Street> and Jagtvej. The limit value (to be complied with in 2010) of the annual average of NO2, was in 2006 exceeded at four out of five street stations. The NO2 concentrations seem to have been almost unchanged during the last ten years. Model calculations at selected streets in <st1:City w:st="on">Copenhagen</st1:City> and Aalborg showed that the limit value + margin of tolerance were exceeded on a large number of streets in central <st1:City w:st="on">Copenhagen</st1:City> while the concentrations in <st1:place w:st="on">Aalborg</st1:place> were slightly below this value.
The ozone level was in 2006 slightly higher than in 2005 at all rural and urban background stations but no clear trend was observed. The information threshold on 180 µg/m3 was exceeded two times. The target values were not exceeded, but the long-term objectives for both the max 8 hours on 120 µg/m3 and the AOT40 on 6000 µg/m3?h were exceeded at all non-traffic stations. The relative high values in 2006 are probably a result of the warm and sunny summer in Europe 2006. The O3 pollution in <st1:country-region w:st="on"><st1:place w:st="on">Denmark</st1:place></st1:country-region> is to a large extent caused by emissions in other European countries.
The limit value for the 35th highest daily average value for PM10 (50 µg/m3) was in 2006 exceeded at 4 stations. The limit value for the yearly average (40 µg/m3) was exceeded at one out of four stations (the margin of tolerance is = 0 from 2005). Emission in other European countries contributes significantly to the PM10 levels in <st1:country-region w:st="on"><st1:place w:st="on">Denmark</st1:place></st1:country-region> .
The SO2 and lead levels have been decreasing for more than two decades and are far below the limit values. The limit values for benzene and CO are not exceeded and the levels have been decreasing for the last decade.
Current data, quarterly reports, annual and multi-annual summaries are available at the website of NERI (http://www.dmu.dk/-International/-Air).
Full report in pdf-format (956 kB)
