Field study of diffusion collection rate coefficients of a NO2 passive sampler in a Mediterranean coastal area.

This study performs a field analysis of the diffusion collection rate coefficients of radial geometry passive samplers to measure NO2 in a Mediterranean coastal area. The study shows that the collection rate coefficients are not constant and depend on certain environmental parameters as well as on the levels of some co-pollutants. A mathematical model, which explains the variation of the collection rate coefficient, has been established.