Montse Mari 1, Francisco Sánchez-Soberón1, Carme Audí-Miró2, Barend L. van Drooge3, Albert Soler2, Joan O. Grimalt3, Marta Schuhmacher1

  • 1 Environmental Analysis and Management Group, Departament d’Enginyeria Química, Universitat Rovira i Virgili, 43007 Tarragona, Catalonia, Spain
  • 2 Grup de Mineralogia Aplicada i Geoquímica de Fluids, Departament de Mineralogia, Petrologia i Geologia Aplicada, Facultat de Ciències de la Terra, Universitat de Barcelona (UB), 08028 Barcelona, Spain
  • 3 Institute of Environmental Assessment and Water Research, CSIC, 08034 Barcelona, Catalonia, Spain

Received: June 29, 2016
Revised: September 27, 2016
Accepted: October 26, 2016
Download Citation: ||https://doi.org/10.4209/aaqr.2016.06.0276  


Cite this article:
Mari, M., Sánchez-Soberón, F., Audí-Miró, C., van Drooge, B.L., Soler, A., Grimalt, J.O. and Schuhmacher, M. (2016). Source Apportionment of Inorganic and Organic PM in the Ambient Air around a Cement Plant: Assessment of Complementary Tools. Aerosol Air Qual. Res. 16: 3230-3242. https://doi.org/10.4209/aaqr.2016.06.0276


HIGHLIGHTS

  • Traffic and the cement plant were the main sources of inorganic PM.

  • Organic PM was mainly influenced by biomass and fossil fuel combustion.

  • Organic dust was a significant source of PM10.

  • PCA, MCR-ALS and carbon isotopes gave complementary information.

  • Combination of techniques gives more reliability to source apportionment results.

 

ABSTRACT


In this study, we analyzed the sources of ambient PM inorganic and organic components near a cement plant using fossil fuels as well as alternative fuels, such as sewage sludge and biomass. Source apportionment methodologies, i.e., principal component analysis (PCA) and multivariate curve resolution by alternating least squares (MCR-ALS), and carbon isotope analysis (δ13C) were used to determine the potential sources and their contributions. Four sources of PM10 main tracer compounds constituents were identified: marine and secondary inorganic aerosol, cement plant/industrial, traffic and crustal. The contributions of those sources varied significantly depending on the period of the year. However, the inorganic tracer PM species in the area were mainly released by combustion sources, namely traffic and the activity of the cement plant, especially in winter months. The analyses of tracer organic compounds also indicated combustion sources, i.e., biomass burning and fossil fuel combustion, as the predominant contributors to ambient air PM (62, 59 and 69%, in PM10, PM2.5 and PM1, respectively). Organic dust was a significant source of PM10 (33%) while its contribution was found to be minor in the finest fractions (9 and 2% in PM2.5 and PM1, respectively). Results of δ13C corroborated a significant contribution of combustion sources, traffic or biomass fuel as well as a higher influence of mineral (calcite) powder in larger particles.


Keywords: Particulate matter; Cement plant; Principal component analysis (PCA); Multivariate curve resolution by alternating least squares (MCR-ALS); Carbon isotopes


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