Review of local, national and international systems developed in Africa, Australia, Canada, China, Europe, India, South America and the USA. Reprinted from Vegetatio Volume 118.
1. Framework for the analysis and assessment of regional emissions. 2. Atmospheric dispersion models and methods. 3. Models and risk assessment methods for the hydrological cycle. 4. Models and assessment methods for environmental exposure and health impacts. 5. Towards integrated risk assessment and safety management at regional level. Appendix A: Compilation of US emission factors. Appendix B: Sample calculations. Appendix C. Additional graphs for the estimation of the diffusion parameters (y and z).