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Aerosol Science

International Networks

Aerosols, Clouds, Trace gases and Research Infrastructure (ACTRIS) network

Aerosol Chemical Speciation Monitors
ACTRIS is a European Project aiming to integrate European ground-based stations equipped with advanced atmospheric probing instrumentation for aerosols, clouds, and short-lived gas-phase species.

ACTRIS has the essential role to support building of new knowledge as well as policy issues on climate change, air quality, and long-range transport of pollutants. An essential part of the ACTRIS agenda is the coordinated long-term measurement of aerosol chemistry with Aerodyne™ Aerosol Chemical Speciation Monitors (ACSM). The North Kensington urban background ‘supersite’ and the Chilbolton site both contribute data to the ACTRIS network.


The COLOSSAL project works to optimise and harmonise fine atmospheric aerosols online measurements, guaranteeing the transfer of knowledge. It coordinates overarching analyses to assess the spatial variability (across Europe), temporal variability (at a one hour time resolution or better), seasonality (using long term datasets), phenomenology (chemical composition) and sources of fine atmospheric aerosol.



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