Ten years (1990-2000) of quality control for air quality data in the Lombardy region
During the last decade the number of air quality monitoring stations in the Lombardy region has significantly increased. The large amount of data transmitted from the 11 provinces to the data bank in Milan required a data quality control. Through an agreement with the regional authorities, the JRC Environment Institute has for ten years validated the analysers operating in fixed monitoring stations by operating a mobile unit equipped with calibrated monitors. A data comparison has been made for 750 monitors of conventional parameters, such as sulfur dioxide, nitrogen monoxide/ nitrogen oxides, nitrogen dioxide, carbon monoxide, O(0), particulate matter as Total Suspended Particulate (TSP) and recently PM10. Ten years' results from this validation are statistically reviewed and discussed. The first practical result has been the validation of the tested monitors, which suggested a revision of some sampling and calibration procedures. Conditions in the field are more severe than laboratory conditions, so the region has set up some quality assurance initiatives to improve the data quality. In general, the data quality has been high for carbon monoxide but poor for TSP; O(3) data quality has significantly improved, while sulfur dioxide data is of less importance due to its low levels.
Bibliographic Reference: EUR 20139 IT (2002), pp.24. Euro: Free of charge
Availability: Available from European Commission, JRC Knowledge Management Unit, Ispra (IT) Tel: +39 033278 9843 or +39 033278 9864 Fax: +39 033278 9623 E-mail: email@example.com
Record Number: 200214619 / Last updated on: 2002-04-19
Original language: it
Available languages: it