1. CHEMICAL RISK AREA ESTIMATION AS A TOOL FOR EFFICIENT EMERGENCY PLANNING. Authors: ALEXANDRU OZUNU, NICOLAE AJTAI, ZOLTÁN TÖRÖK.2. AIR QUALITY MODELLING OF SO2 EMISSIONS ASSOCIATED TO METALLURGICAL PROCESSES. Authors: ALEXANDRU OZUNU, ZOLTÁN TÖRÖK, NICOLAE AJTAI.3. OPTIMIZATION OF LIDAR SYSTEMS MEASUREMENTS FOR DETECTION OF CLEAR AIR TURBULENCE. Authors: LIVIO BELEGANTE, RӐZVAN PÂRLOAGӐ, ALEXANDRU MEREUŢӐ, ANDREI RADOVICI, NICOLAE AJTAI, CAMELIA BOTEZAN, HORAŢIU ŞTEFӐNIE.