1. SRA-E-06: Innovation and Technical Progress – Benefit without risk? Ljubljana, 11 – 12 Sep 06 Land Use Planning in the Context of Seveso II establishments in Austria Maria.stangl@stmk.gv.at

2. Overview 1. Introduction & legal basis 2. Reference Scenarios and their role in LUP 3. Legal impact & practical problems 4. Questions and answers

3. Dangerous neighbourhood..

4. EU: Art. 12 of Dir 96/82/EC Ensure appropriate distances between „Seveso“ establishments and residential areas, areas of public use and of particular natural sensitivity additional technical measures in the case of existing establishments consulation procedures to make available technical advice on generic or case-by-case basis 1. Introduction & legal basis

5. Control siting of new establishments modification to existing establishments new developments  appropriate distances  reference scenarios Art. 12 of Dir 96/82/EG / 2

6. Austria general LUP: legislative & executive competence of 9 Länder both transposition & implement´n of Art 12 into LUP legislation & administrative procedures

7. P ermanent Seveso Working Group Discussion started in 1996. decision taken in 1999 concerning major scenarios LPG (highly) flammable liquid and solid substances, explosives and explosive gas-clouds decision on dispersion of toxic gases based on Report of TU Graz in 2000 first recommendation in 2001 Amended recommendation in 2005

8. P ermanent Seveso Working Group

9. 2. Reference Scenarios and their role in LUP Proper solution for adequate distances between „Seveso-establishments“ and „sensitive developments“ –Distance model (MIACC-guide: threshold – quantity related distances) –Standardized case-by-case assessment Accounting for active technical protective measures Avoid high incidence of coservative assumptions Determine calculation models and parameters

10. Distance model (examples) Part/noSubstanceThreshold (t)Quantity (t)Distance (m) 1/6chlorine10/25100440 1/14LPG/natural gas 50/200100 1,000 150 460 1/18methanol500/5,0001,000120 1/30Petroleum products 2,500/25,000100,000440 2/1Very toxic substances 5/205 50 150 390 2/2ammonia50/200100 10,000 150 690 2/2Toxic substances 50/200100 1,000 150 460 2/8Extremely flammable liquids R11 5,000/ 50,00010,000 100,000 120 370

11. Standardized case-by-case assessment SubstanceScenarioImpactAssessment value Liquefied flammable gases BLEVE, UVCEa)Shock wave b)B) thermal radiation a)0.050 bar b)500 TDU (see note) Flammable liquid substances Fire in the larges section/pool Thermal radiation 3.0 kW/m² ExplosivesExplosion of the biggest mass stored together Shock wave0.050 bar Explosive gas/vapour cloud UVCE after 1 min; release over a 25 cm pipe diameter (DN 250 for 10 min) Shock wave0.050 bar Toxic substances Release ofer a 25 cm pipe diameter (DN 250 for 10 min) Effect on human health IDLH

12. 3. Legal impact & practical problems Scenarios as recommendations for technical advice Case by case approach possible, if necessary

13. Practical problems New developments around existing establishments (very frequent case) No more new developments (esp. housing)? Additional technical measures? Public perception?

14. Practical problems / 2 Compensation to land-owners in case of prohibition of use for dedicated purpose (eg housing)?? State aids for relocation of establishments?? ( Direct application of Art. 12 of Dir. in cases of insufficient compliance?

15. Thank you For your attention. Questions and answers?