High-quality research is utilized to develop services to benefit our everyday life. Visible examples are improvement of weather forecasts, development of new expert and warning services as well as applications of the newest research results.
FMI's researchers publish about 300 peer-reviewed articles annually.
In Science News we publish current information about FMI's studies on the weather, the sea and the climate.
Chemical composition of submicron particles (aerodynamic diameter < 1.0 μm) was investigated at three locations, rural, urban, and urban receptor environment, in the Santiago Metropolitan Region (SMR), Chile.
Measured aerosol species were black carbon (BC), chloride, nitrate, sulfate, ammonium, and organic matter. Additionally, ozone concentration and meteorological parameters were obtained from the public air quality network. The average mass concentration of submicron particles was smallest in winter at the rural site (13 µg m-3) and largest in winter at the urban site (44 µg m-3).
Both winter and spring the mass of submicron particles was dominated by organic matter followed by nitrate, ammonium, black carbon, sulfate, and chloride. In general, all the measured species were present in higher concentrations during winter, except sulfate that increased during spring. Based on wind patterns and the hourly profiles of chemical species, the study shows that during daytime the polluted air masses from the urban center can move to the northeast part of the region (urban receptor site) leading to the formation of submicron particles as well as photochemical ozone.
Researcher Hilkka Timonen, email@example.com
Researcher Sanna Saarikoski, firstname.lastname@example.org
Tagle, M., Reyes, F., Vásquez, Y., Carbone, S., Saarikoski, S., Timonen, H., Gramsch, E., and Oyola, P.: Spatiotemporal variation in composition of submicron particles in Santiago Metropolitan Region, Chile, Frontiers of Environmental Science, doi: 10.3389/fenvs.2018.00027, 2018.
Scientific Director Ari Laaksonen
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Meteorological and Marine Research Programme
Director Sami Niemelä
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Climate Research Programme
Director Hannele Korhonen
tel. +358 29 539 2135
Space and Earth Observation Centre
Director Jouni Pulliainen
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FMI´s own publications series are:
All publications from 2016 onwards can be found on Helda.