A Peugeot 406 2.2l HDi passenger car was driven around Cambridge and its environs whist monitoring the particulate size spectrum in real-time using a Cambustion DMS50 mobile fast particulate spectrometer. As well as the full spectrum, nucleation and accumulation mode number, CMD and GSD and accumulation mode mass were calculated. Using the logged road speed, the tests were then repeated on a more traditional chassis dynamometer (“rolling road”) facility to compare real world emissions with those in a laboratory environment.
