Details

Autor(en) / Beteiligte

• Rey, M.D.
• Font, R.
• Aracil, I.

Titel

PCDD/F emissions from light-duty diesel vehicles operated under highway conditions and a diesel-engine based power generator

Ist Teil von

• Journal of hazardous materials, 2014-08, Vol.278, p.116-123

Ort / Verlag

Kidlington: Elsevier B.V

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• •A new methodology is proposed for sampling the exhaust of small vehicles.•PCDD/F emissions from various diesel vehicles are measured in on-road conditions.•The effect of the engine temperature on the PCDD/F emissions is assessed.•Contribution of power generators to atmospheric pollution is estimated. PCDD/F emissions from three light-duty diesel vehicles – two vans and a passenger car – have been measured in on-road conditions. We propose a new methodology for small vehicles: a sample of exhaust gas is collected by means of equipment based on United States Environmental Protection Agency (U.S. EPA) method 23A for stationary stack emissions. The concentrations of O2, CO, CO2, NO, NO2 and SO2 have also been measured. Six tests were carried out at 90–100km/h on a route 100km long. Two additional tests were done during the first 10min and the following 60min of the run to assess the effect of the engine temperature on PCDD/F emissions. The emission factors obtained for the vans varied from 1800 to 8400pg I-TEQ/Nm3 for a 2004 model year van and 490–580pg I-TEQ/Nm3 for a 2006 model year van. Regarding the passenger car, one run was done in the presence of a catalyst and another without, obtaining emission factors (330–880pg I-TEQ/Nm3) comparable to those of the modern van. Two other tests were carried out on a power generator leading to emission factors ranging from 31 to 78pg I-TEQ/Nm3. All the results are discussed and compared with literature.