The effect of the Low Emission Zone in Rotterdam on air quality

In this thesis, the effect of the Low Emission Zone (LEZ) in Rotterdam, which was introduced at January 1st, 2016, is evaluated using a difference in differences approach with measured data on NO2, NO and PM10. There are data from 2013-2017 on 11 measuring stations in Rotterdam, Vlaardingen, The Hague and Amsterdam, from which 2 are in the LEZ and 2 are very close to the LEZ. No significant effect was found, which could very well be due to a shortage of measuring locations and confounding factors influencing the result. It could also be because the amount of NO2 emitted by cars has not gone down much.