Air measurement values for nitrogen oxides — time series of urban measuring stations

The dataset contains the archive data with the measured values for nitrogen oxides from the urban measuring stations. The values are expressed in µg/m³. The annual averages and the latest measured values are provided in corresponding data sets. The files with the most up-to-date values are automatically supplemented once per hour by another measured value. Other pollutants for which data are available are benzene, ozone, soot and daily values for fine dust. In addition to the archive data for the daily fine dust values, data on exceedance days and annual average values are also provided here. The state capital of Düsseldorf carries out air quality measurements and evaluates the results on the basis of the legal basis. It is currently the Federal Immission Protection Act in combination with the 39. Federal Immission Control Regulation. Further information can be found on the ‘Air Quality’ page of the Environmental Agency. The values of the urban measuring stations on Dorotheenstraße and Brinckmannstraße are updated every hour. The spatial information of the urban measuring stations is available in a separate dataset. The files for nitric oxide and for nitrogen dioxide shall contain the following column information: Date: Date of measurement Time: Time of measurement Summaries: Values of the measuring station at Ludenberger Allee (measurements discontinued at the end of 2013) Doro: Values of the measuring station on Dorotheenstraße BRINCK: Values of the measuring station at Brinckmannstraße Aaper: Values of the measuring station in the Aaper Forest (measurements discontinued at the end of 2013)