In this issue
- Krassimir Georgiev: NATO ARW on Advances in air pollution modelling for environmental security
- Karen Callebaut: Exchange of information
- Ivan Bešlic, Krešimir Šega and Zvjezdana Bencetic Klaic: PM10 and PM2.5 levels in urban part of Zagreb, Croatia: self-constructed vs. reference samplers
- Ekaterina Batchvarova: Environmental pollution and biodiversity
- Marko Kaasik, Tiiu Alliksaar: Spheroidal particles as passive tracers of spreading and deposition of fly ash from high-temperature combustion
Front cover: Stork nests on the main highway of Sofia.