On-road measurements of NMVOCs and NOX: Determination of light-duty vehicles emission factors from tunnel studies in Brussels city center

摘要

Emission factors (EFs) of pollutants emitted by light-duty vehicles (LDV) were investigated in the Leopold II tunnel in Brussels city center (Belgium), in September 2011 and in January 2013, respectively. Two sampling sites were housing the instruments for the measurements of a large range of air pollutants, including non-methane volatile organic compounds (NMVOCs), nitrogen oxides (NOX) and carbon dioxide (CO2). The NMVOCs and NOX traffic EFs for LDV were determined from their correlation with CO2 using a single point analysis method.