Cheap and simple Air-Quality stations; possibilities and outlook – Joost Wesseling
Sensing the quality of the environment has been popular on the Internet over the last several years. Several kits for DIY air quality measurements can be found. Also, several relatively cheap commercial kits are available, like the “Air Quality Egg”. For an important gaseous pollutant like nitrogen dioxide, several sensitive sensors have recently become available.
Both for cities as well as citizens new opportunities are emerging. Using the available cheap sensors in ever increasing numbers, combined with calibration derived from high-end sensors, it should (within several years) be possible to create air quality maps with sufficient quality to determine personal exposure.
At RIVM several experiments are running to determine the practical value of both cheap and expensive air quality sensors and to develop calibration strategies. First experiences and expectations for the future will be discussed.