Workpackage 1: literature review (M. Nieuwenhuijsen, UK et al.)

Workpackage 2: Ecological study (V. Bencko, CZ, et al.)

Workpackage 3: Case-control study (U. Ranft, B. Pesch, K. Unfried, D, et al.)

Workpackage 4: Urinary As speciation (P. Jakubis, P. Miscovic, SK, et al.)

Workpackage 5: As in soil, dust, ash, coal (I. Thornton, T. Keegan, UK, et al.)

Workpackage 6: As immission model (R. Colvile, UK, et al.)

Workpackage 7: Risk assessment in Romania (E. Cordos, RO, et al.)

Workpackage 8: Best industrial practice (P. Docx, R. Rautiu, UK, et al.)