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Aoibhinn Leyden, left, of Colaiste Muire, Ennis, whose project for this year's BT Young Scientist competition is entitled "The Study and Analysis of Local Air Quality", Aoibhinn has built an Arduino device with sensors to record atmospheric data such as NO2, PM10 and PM25, indicators of pollution from car exhausts and the burning of fossil fuels for home heating. Aoibhinn has been recording data with her device around Ennis town for the last month and is being assisted in the photo by her friend Lucy Murphy, who was also successful in having her project accepted into the "Social and Behavioural Sciences" category. Photograph by John Kelly
