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Sci Rep. 2017 Aug 30;7(1):10058. doi: 10.1038/s41598-017-09822-w.

Characterizing particulate polycyclic aromatic hydrocarbon emissions from diesel vehicles using a portable emissions measurement system.

Scientific reports

Xuan Zheng, Ye Wu, Shaojun Zhang, Jingnan Hu, K Max Zhang, Zhenhua Li, Liqiang He, Jiming Hao

Affiliations

  1. School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, P. R. China.
  2. School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, P. R. China. [email protected].
  3. State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, P. R. China. [email protected].
  4. Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, 14853, USA. [email protected].
  5. State Environmental Protection Key Laboratory of Vehicle Emission Control and Simulation, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
  6. Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, 14853, USA.
  7. State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing, 100084, P. R. China.

PMID: 28855647 PMCID: PMC5577249 DOI: 10.1038/s41598-017-09822-w

Abstract

Particulate polycyclic aromatic hydrocarbons (p-PAHs) emitted from diesel vehicles are of concern because of their significant health impacts. Laboratory tests, road tunnel and roadside experiments have been conducted to measure p-PAH emissions. While providing valuable information, these methods have limited capabilities of characterizing p-PAH emissions either from individual vehicles or under real-world conditions. We employed a portable emissions measurement (PEMS) to measure real-world emission factors of priority p-PAHs for diesel vehicles representative of an array of emission control technologies. The results indicated over 80% reduction in p-PAH emission factors comparing the China V and China II emission standard groups (113 μg kg

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