1. Centre for Environmental Health, National Institute of Public Health, Ljubljana, Slovenia
2. Regional Unit Koper, National Institute of Public Health, Koper, Slovenia
3. Department of Agronomy(Biotechnical Faculty), University of Ljubljana, Ljubljana, Slovenia
4. Department for Environment and Health Maribor, National Laboratory for Health, Environment and Food, Maribor, Slovenia
5. Department for Environment and Health Maribor, National Laboratory for Health, Environment and Food, Ljubljana, Slovenia
6. Regional Unit Ravne na Koroškem, National Institute of Public Health, Ravne na Koroškem, Slovenia