References
- Alanen, J., E. Saukko, K. Lehtoranta, T. Murtonen, H. Timonen, R. Hillamo, P. Karjalainen, H. Kuuluvainen, J. Harra, J. Keskinen, et al. 2015. The formation and physical properties of the particle emissions from a natural gas engine. Fuel 162 (December):155–61. doi:https://doi.org/10.1016/j.fuel.2015.09.003.
- Amanatidis, S., L. Ntziachristos, B. Giechaskiel, D. Katsaounis, Z. Samaras, and A. Bergmann. 2013. Evaluation of an oxidation catalyst (‘catalytic Stripper’) in eliminating volatile material from combustion aerosol. J. Aerosol Sci. 57:144–55. doi:https://doi.org/10.1016/j.jaerosci.2012.12.001.
- Bainschab, M., A. Bergmann, P. Karjalainen, J. Keskinen, J. Andersson, A. Mamakos, B. Giechaskiel, C. Haisch, O. Piacenza, L. Ntziachristos, et al. 2017. “Extending Particle Number Limits to below 23 Nm: First Results of the H2020 DownToTen Project.” In 2017 ETH-Conference on Combustion Generated Nanoparticles, 49:3644–3652.
- Braisher, M., R. Stone, and P. Price. 2010. Particle number emissions from a range of European vehicles. SAE Technical Papers, no. Ci. doi:https://doi.org/10.4271/2010-01-0786.
- Cachón, L., D. Tóth, and E. Pucher. 2009. Real-world emission measurements of a high efficient monofuel CNG light duty vehicle. SAE Technical Papers, June, 1–8. doi:https://doi.org/10.4271/2009-01-1864.
- Catapano, F., S. Di Iorio, P. Sementa, and B. M. Vaglieco. 2017. Particle formation and emissions in an optical small displacement SI engine dual fueled with CNG DI and gasoline PFI. In SAE Technical Papers. Vol. 2017. doi:https://doi.org/10.4271/2017-24-0092.
- Chen, H., J. He, and X. Zhong. 2019. Engine combustion and emission fuelled with natural gas: A review. J. Inst. Energy 92 (4):1123–36. doi:https://doi.org/10.1016/j.joei.2018.06.005.
- De Filippo, A., and M. Matti Maricq. 2008. Diesel nucleation mode particles: Semivolatile or solid? Environ. Sci. Technol. 42 (21):7957–62. doi:https://doi.org/10.1021/es8010332.
- Dimaratos, A., Z. Toumasatos, S. Doulgeris, G. Triantafyllopoulos, A. Kontses, and Z. Samaras. 2019. Assessment of CO2 and NOx emissions of one diesel and one bi-fuel gasoline/CNG Euro 6 vehicles during real-world driving and laboratory testing. Front. Mech. Eng 5 (December): 6–7. doi:https://doi.org/10.3389/fmech.2019.00062.
- Dimaratos, A., Z. Toumasatos, G. Triantafyllopoulos, A. Kontses, and Z. Samaras. 2020. Real-World Gaseous and particle emissions of a bi-fuel gasoline/CNG Euro 6 passenger car. Transportation Research Part D: Transport and Environment 82:102307. doi:https://doi.org/10.1016/j.trd.2020.102307.
- European Automobile Manufacturers Association (ACEA). 2019. Economic and Market Report EU Automotive Industry Full-Year 2018. https://www.acea.be/uploads/statistic_documents/Economic_and_Market_Report_full-year_2018.pdf.
- Ferri, D., M. Elsener, and O. Kröcher. 2018. Methane oxidation over a honeycomb Pd-only three-way catalyst under static and periodic operation. Appl. Catal, B. 220:67–77. doi:https://doi.org/10.1016/j.apcatb.2017.07.070.
- Giechaskiel, B., 2019a. Differences between tailpipe and dilution tunnel Sub-23 Nm nonvolatile (solid) particle number measurements. Aerosol Sci. Technol. 53 and 5 (9): 1012–22. doi:https://doi.org/10.1080/02786826.2019.1623378.
- Giechaskiel, B. 2019b. Effect of sampling conditions on the Sub-23 Nm nonvolatile particle emissions measurements of a moped. Appl. Sci. 9 (15):7–8. doi:https://doi.org/10.3390/app9153112.
- Giechaskiel, B., A. Joshi, L. Ntziachristos, and P. Dilara. 2019. European regulatory framework and particulate matter emissions of gasoline light-duty vehicles: A review. Catalysts 9 (7):11–12. doi:https://doi.org/10.3390/catal9070586.
- Giechaskiel, B., T. Lähde, and Y. Drossinos. 2019. Regulating particle number measurements from the tailpipe of light-duty vehicles: The next step? Environ. Res. 172 (December):1–9. doi:https://doi.org/10.1016/j.envres.2019.02.006.
- Giechaskiel, B., and G. Martini. 2014. Engine exhaust solid sub-23 Nm particles: II. Feasibility study for particle number measurement systems. SAE Int. J. Fuels Lubr. 7 (3):935–49. doi:https://doi.org/10.4271/2014-01-2832.
- Guerreiro, C., F. de Leeuw, and E. E. A. A. G. Ortiz. 2015. Air quality in Europe — 2015 report. Report. 5:23–24. doi:https://doi.org/10.2800/62459.
- Hajbabaei, M., G. Karavalakis, K. C. Johnson, L. Lee, and T. D. Durbin. 2013. Impact of natural gas fuel composition on criteria, toxic, and particle emissions from transit buses equipped with lean burn and stoichiometric engines. Energy 62:425–34. doi:https://doi.org/10.1016/j.energy.2013.09.040.
- He, X., M. A. Ratcliff, and B. T. Zigler. 2012. Effects of gasoline direct injection engine operating parameters on particle number emissions. Energy Fuels 26 (4):2014–27. doi:https://doi.org/10.1021/ef201917p.
- Jahirul, M. I., H. H. Masjuki, R. Saidur, M. A. Kalam, M. H. Jayed, and M. A. Wazed. 2010. Comparative engine performance and emission analysis of CNG and gasoline in a retrofitted car engine. Appl. Therm. Eng. 30 (14/15): 2219–26. doi:https://doi.org/10.1016/j.applthermaleng.2010.05.037.
- Karjalainen, P., L. Pirjola, J. Heikkilä, T. Lähde, T. Tzamkiozis, L. Ntziachristos, J. Keskinen, and T. Rönkkö. 2014. Exhaust particles of modern gasoline vehicles: A laboratory and an on-road study. Atmos. Environ. 97 (November): 262–70. doi:https://doi.org/10.1016/j.atmosenv.2014.08.025.
- Khalek, I., Bougher, T. 2011. Development of a solid exhaust particle number measurement system using a catalytic stripper technology. SAE International Journal of Engines. 4 (1):639–49. doi:https://doi.org/10.4271/2011-01-0635.
- Kontses, A., G. Triantafyllopoulos, L. Ntziachristos, and Z. Samaras. 2020. Particle number (PN) emissions from gasoline, diesel, LPG, CNG and hybrid-electric light-duty vehicles under real-world driving conditions. Atmos. Environ. 222:117126. doi:https://doi.org/10.1016/j.atmosenv.2019.117126.
- Kumar, P., A. Robins, S. Vardoulakis, and R. Britter. 2010. A review of the characteristics of nanoparticles in the urban atmosphere and the prospects for developing regulatory controls. Atmos. Environ. 44 (39):5035–52. doi:https://doi.org/10.1016/j.atmosenv.2010.08.016.
- Louis, C., Y. Liu, S. Martinet, B. D'Anna, A. M. Valiente, A. Boreave, B. R'Mili, P. Tassel, P. Perret, and M. André. 2017. Dilution effects on ultrafine particle emissions from Euro 5 and Euro 6 diesel and gasoline vehicles. Atmos. Environ. 169 (November):80–8. doi:https://doi.org/10.1016/j.atmosenv.2017.09.007.
- Lyyränen, J., J. Jokiniemi, E. I. Kauppinen, U. Backman, and H. Vesala. 2004. Comparison of different dilution methods for measuring diesel particle emissions. Aerosol Sci. Technol. 38 (1):12–23. doi:https://doi.org/10.1080/02786820490247579.
- Magara-Gomez, K. T., M. R. Olson, J. E. McGinnis, M. Zhang, and J. J. Schauer. 2014. Effect of ambient temperature and fuel on particle number emissions on light-duty spark-ignition vehicles. Aerosol Air Qual. Res. 14 (5):1360–71. doi:https://doi.org/10.4209/aaqr.2013.06.0183.
- Mathissen, M., V. Scheer, R. Vogt, and T. Benter. 2011. Investigation on the potential generation of ultrafine particles from the tire-road interface. Atmos. Environ. 45 (34):6172–9. doi:https://doi.org/10.1016/j.atmosenv.2011.08.032.
- Mayer, A. C., A. Ulrich, J. Czerwinski, and J. J. Mooney. 2010. Metal-oxide particles in combustion engine exhaust. SAE Technical Papers. doi:https://doi.org/10.4271/2010-01-0792.
- Melas, A. D., V. Koidi, D. Deloglou, E. Daskalos, D. Zarvalis, E. Papaioannou, and A. G. Konstandopoulos. 2020. Development and evaluation of a catalytic stripper for the measurement of solid ultrafine particle emissions from internal combustion engines. Aerosol Sci. Technol. 54 (6):704–17. doi:https://doi.org/10.1080/02786826.2020.1718061.
- Miller, M. R., J. B. Raftis, J. P. Langrish, S. G. McLean, P. Samutrtai, S. P. Connell, S. Wilson, A. T. Vesey, P. H. B. Fokkens, A. J. F. Boere, et al. 2017. Inhaled nanoparticles accumulate at sites of vascular disease. ACS Na 11 (5):4542–52. doi:https://doi.org/10.1021/acsnano.6b08551.
- Napolitano, P., C. Guido, C. Beatrice, V. Fraioli, and S. Alfuso. 2019. Particle and gaseous emissions from a heavy-duty SI gas engine over WHTC driving cycles. In. doi:https://doi.org/10.4271/2019-01-2222.
- NGVA-Europe. 2018. “Report of Activities 2017 - 2018,” January. https://www.ngva.eu/wp-content/uploads/2018/12/NGVA-Europe_Report-of-Activities-2017-2018.pdf.
- Nithyanandan, K., Y. Lin, R. Donahue, X. Meng, J. Zhang, C. Fon, and F. Lee. 2016. Characterization of soot from diesel-CNG dual-fuel combustion in a CI engine. Fuel 184 (x):145–52. doi:https://doi.org/10.1016/j.fuel.2016.06.028.
- Ntziachristos, L., and Z. Samaras. 2010. The potential of a partial-flow constant dilution ratio sampling system as a candidate for vehicle exhaust aerosol measurements Leonidas Ntziachristos. J. Air Waste Manag. Assoc. 60 (10):1223–36. doi:https://doi.org/10.3155/1047-3289.60.10.1223.
- Paul, R., and K. Owen. 2014. Automotive fuels reference book. 3rd ed. Society of Automotive Engineers. https://www.sae.org/publications/books/content/r-297/.
- Pey, J., X. Querol, A. Alastuey, S. Rodríguez, J. P. Putaud, and R. Van Dingenen. 2009. Source Apportionment of urban fine and ultra-fine particle number concentration in a Western Mediterranean City. Atmos. Environ. 43 (29):4407–15. doi:https://doi.org/10.1016/j.atmosenv.2009.05.024.
- Raza, M., L. Chen, F. Leach, and S. Ding. 2018. A review of particulate number (PN) emissions from gasoline direct injection (Gdi) engines and their control techniques. Energies 11 (6):1417. doi:https://doi.org/10.3390/en11061417.
- Rönkkö, T., L. Pirjola, L. Ntziachristos, J. Heikkilä, P. Karjalainen, R. Hillamo, and J. Keskinen. 2014. Vehicle engines produce exhaust nanoparticles even when not fueled. Environ. Sci. Technol. 48 (3):2043–50. doi:https://doi.org/10.1021/es405687m.
- Rönkkö, T., A. Virtanen, J. Kannosto, J. Keskinen, M. Lappi, and L. Pirjola. 2007. Nucleation mode particles with a nonvolatile core in the exhaust of a heavy duty diesel vehicle. Environ. Sci. Technol. 41 (18):6384–9. doi:https://doi.org/10.1021/es0705339.
- Samaras, Z. C., J. Andersson, A. Bergmann, S. Hausberger, Z. Toumasatos, J. Keskinen, C. Haisch, et al. 2020. Measuring automotive exhaust particles down to 10 Nm - ‘DownToTen’ Project. SAE Powertrains, Fuels & Lubricants Meeting 2017:1–12. doi:https://doi.org/10.4271/2020-01-2209.Abstract.
- Schreiber, D., A. M. Forss, M. Mohr, 2007. and, and P. Dimopoulos. Particle characterisation of modern CNG, gasoline and diesel passenger cars. SAE Technical Papers 2007-Septe. doi:https://doi.org/10.4271/2007-24-0123.
- Shen, M., M. Tuner, B. Johansson, P. Tunestal, and J. Pagels. 2016. Influence of injection timing on exhaust particulate matter emissions of gasoline in HCCI and PPC. In SAE Technical Papers. Vol. 2016-Oct. doi:https://doi.org/10.4271/2016-01-2300.
- Vouitsis, I., L. Ntziachristos, C. Samaras, and Z. Samaras. 2017. Particulate mass and number emission factors for road vehicles based on literature data and relevant gap filling methods. Atmos. Environ. 168:75–89. doi:https://doi.org/10.1016/j.atmosenv.2017.09.010.
- Wang, X., M. A. Grose, R. Caldow, B. L. Osmondson, J. J. Swanson, J. C. Chow, J. G. Watson, D. B. Kittelson, Y. Li, J. Xue, et al. 2016. Improvement of engine exhaust particle sizer (EEPS) size distribution measurement – II. Engine exhaust particles. J. Aerosol Sci. 92:83–94. doi:https://doi.org/10.1016/j.jaerosci.2015.11.003.
- WHO. 2012. Burden of Disease from Household Air Pollution for 2012. World Health Organization, Global Health Risks 1 (February): 1 –17. http://www.who.int/phe/health_topics/outdoorair/databases/FINAL_HAP_AAP_BoD_24March2014.pdf.
- Yusaf, T. F., D. R. Buttsworth, K. H. Saleh, and B. F. Yousif. 2010. CNG-Diesel engine performance and exhaust emission analysis with the aid of artificial neural network. Appl. Energy 87 (5): 1661–9. doi:https://doi.org/10.1016/j.apenergy.2009.10.009.
- Zimmerman, N. K. J., Godri Pollitt, C. Heon Jeong, J. M. Wang, T. Jung, J. M. Cooper, J. S. Wallace, and G. J. Evans. 2014. Comparison of three nanoparticle sizing instruments: The influence of particle morphology. Atmos. Environ. 86:140–7. doi:https://doi.org/10.1016/j.atmosenv.2013.12.023.