Wuppertal ATOM Feed NO2 measurement data (passive collector) from 2008

The ATOM Feed Download Service for NO2 measurement data (passive collectors) from 2008 provides a dataset for download, which includes the monthly mean values of the nitrogen dioxide concentration (as of 05/2021) determined by the evaluation of passive collectors (as of 05/2021) 42 municipal measuring stations in the Wuppertal city area. As of 05/2021, the data set contains 3938 measured values of 30 currently in operation stations and 12 stations whose operation has been discontinued in the meantime. The passive collectors are tubes hung in protective housings filled with adsorber material (“sample collection tubes”) in which the nitrogen dioxide is enriched by natural diffusion over an exposure period of about one month. Each row of the data set contains a monthly mean value of the nitrogen dioxide concentration in the unit µg/m³ (attribute MESSWERT) determined by laboratory analysis of a sampling tube. Using the station number in the measurement point attribute, the measured values can be linked to the location data in the data set “Air Measurement Stations Wuppertal (Passive Collector)” published separately as Open Data. In addition, each row contains the reference month (Year and MONAT attributes) and the day-sharp exposure period (attributes ZEIT_VON and ZEIT_BIS). The dataset is updated monthly. Due to the duration of the evaluation and data control, the measured values of the previous month are transferred to the database and published at the end of the month. However, the data that the download service accesses is updated on a regular basis. The data set provided is available in CSV format under an open data license (CC BY 4.0).