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Speciated PM Composition and Gas and Particle Emission Factors for Diesel Construction Machinery in China

Category: Air Pollution and Health Effects

Article In Press
DOI: 10.4209/aaqr.2018.07.0272
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Qingyao Hu1, Cheng Huang 1, Liping Qiao1, Yingge Ma1, Qiang Yang2, Wei Tang2, Min Zhou1, Shuhui Zhu1, Shengrong Lou1, Shikang Tao1, Yun Chen3, Li Li 1

  • 1 State Environmental Protection Key Laboratory of Cause and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China
  • 2 Hangzhou Institute of Environment Sciences, Hangzhou 310014, China
  • 3 Hangzhou Motor Vehicle Exhaust Pollution Management Office, Hangzhou 310014, China

Highlights

  • RDE test were performed on 9 diesel machineries under real-world conditions.
  • Gaseous and particulate emission factors of the tested machineries were determined.
  • The OC, EC, and WSIs, elements, OM of PM from the tested machineries were analyzed.

Abstract

On-board emission measurements were performed on nine diesel construction machines operated under real-world conditions in China. The emission factors (EFs) for NOx, CO, the total hydrocarbons, PM, and the particle number concentration were determined under actual operating conditions, i.e., during idling, moving, and working. To investigate the chemical composition of PM from diesel machinery, organic carbon (OC), containing particulate organic matter (POM); elemental carbon (EC); water-soluble ions (WSIs); and elements were also analyzed herein. OC was the most abundant component (contributing 39.3 ± 11% of the mass), followed by EC (37.7 ± 13%). POM species, including n-alkanes, hopanes, polycyclic aromatic hydrocarbons (PAHs), and n-fatty acids, contributed approximately 2.4–6.4% of the total PM mass. Compounds with 3 or 4 aromatic rings, including pyrene, phenanthrene, and fluoranthene, dominated the particulate PAHs, accounting for 62% of the total mass. These results are consistent with those of previous studies and can

Keywords

Non-road machinery Emission factors PM components PAH emissions Diesel emissions


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