PASTA - Particles in the Urban Environment

The principal objective of this project is to gain a better base for assessing the concentrations of particle mass, surface area and number in the urban environment, in this case Stockholm. The project has a monitoring part, with two fixed stations for mass and number (one at street level and the other at roof level), one modeling part and a health assessment part. The latter link is stressed by PASTA being part of the Swedish SNAP programme and the European HEAPSS study.

Modelling efforts have focused the coupling of an aerosol dynamics model (MONO32) to a CFD model, for studying different traffic microenvironments, and to the MATCH model for assessing the urban scale.

Duration: 2001-2004

Funded by: Swedish Agency Innovation Systems (Vinnova) and Swedish Environmental Protection Agency.

Responsible at SMHI: Lars Gidhagen

Web site:

References:

Gidhagen L., Johansson, C., Ström, J., Kristensson, A., Swietlicki, E., Pirjola, L., Hansson, H-C., 2003. Model simuation of ultrafine particles inside a road tunnel. Atmospheric Environment 37, 2023-2036.

Gidhagen, L., Johansson, C., Langner, J., Olivares, G., 2004. Simulations of NOx and ultrafine particles in a street canyon in Stockholm, Sweden. Submitted to Atmospheric Environment.