Furthermore, the annual PM10 limit of 40 µg/m³ was not complied with in measurements made at the Stuttgart Neckartor site.
As UBA Vice President Dr. Thomas Holzmann sees it, there is no reason to breathe easily, commenting that “the mild winter and rainy summer of 2007 were conditions in which particulate matter did not have an adverse impact on health as much as it had in previous years. However, this might change again soon, so we must make further reductions in the long term“.
Air pollution with nitrogen dioxide (NO2) remained high in 2007: more than half the measuring stations near roads registered annual mean values of NO2 above the 40 µg/m³ cap which must be complied with as of 2010.
Should NO2 emissions show no significant changes by 1 January 2010, levels of NO2 significantly higher than the limit value can be expected at these sites.
NO2 is an indicator for the waste gas mixture emitted by industrial plants, power and district heating stations, building heating systems, and traffic. Nitrogen dioxide is harmful to the respiratory tract.