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|Title:||Sensitivity of VOC Sensors for Air Quality Monitoring within the EURAMET Key-VOC project|
|Authors:||SPINELLE LAURENT; GERBOLES Michel; KOK Gertjan; SAUERWALD Tilman|
|Publisher:||AMA Science (http://www.ama-science.org/ama-conferences)|
|Type:||Articles in periodicals and books|
|Abstract:||The Air Quality Directive AQD sets the limit value for benzene at 5 µg/m³ over a calendar year which corresponds to the upper range of concentration measured in air quality monitoring. Currently, the sensitivity of sensors represents the major challenge for measuring benzene in the ppb range. In 2005, benzene levels in ambient air less than 100 ppb were out of the range of gas sensors. Nowadays, the technological progress resulted in an improvement of sensor sensitivity and a few systems are able to reach the ppb or more rarely sub ppb level of sensitivity for monitoring benzene. The information available for the sensitivity of gas sensors either commercially available or extracted from research studies are presented for photo ionisation detectors, metal oxide sensors, electrochemical cells, UV spectrometers, micro GCs and electronic noses.|
|JRC Directorate:||Sustainable Resources|
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