1. FLAME ATOMIC EMISSION DETERMINATION OF STRONTIUM IN FLOTATION TAILINGS USING THE METHANE-AIR FLAME AS EXCITATION SOURCE. Authors: LADISLAU KÉKEDY-NAGY, FRENŢIU TIBERIU, ANA-MARIA RUSU, MICHAELA PONTA, EMIL CORDOŞ.2. PRELIMINARY STUDIES OF AIRBORNE PARTICULATE EMISSIONS FROM THE AMPELLUM S.A. COPPER SMELTER, ZLATNA, ROMANIA. Authors: BEN J. WILLIAMSON, NICOLAE HAR, WILLIAM O. PURVIS, ANA-MARIA RUSU.3. PILOT ASSESSMENT OF CONTAMINANT ELEMENTS IN SOILS AND CRYPTOGAM PLANTS FROM EMISSIONS FROM AN ORE PROCESSING PLANT, ZLATNA REGION, ROMANIA. Authors: ANA-MARIA RUSU, KATALIN BARTÓK, WILLIAM PURVIS, WILLIAM DUBBIN.4. TRACE ELEMENT MEASUREMENT BY ICP-AES FOR THE ROUTINE MULTI-ELEMENT ANALYSIS OF LICHEN AND SOIL SAMPLES FOR ENVIRONMENTAL POLLUTANT STUDIES. Authors: ANA-MARIA RUSU, KATALIN BARTÓK, VICTOR DIN, WILLIAM PURVIS, WILLIAM DUBBIN.5. DIFFUSION CORONAS AROUND QUARTZ XENOCRYSTS IN BASALTIC ANDESITE FROM CĂPUŞ (CIONCA HILL, GILĂU MOUNTAINS - ROMANIA). Authors: NICOLAE HAR, ANA-MARIA RUSU.6. HEAVY METAL SOIL CONTENT AS AN INDICATOR OF POLLUTION. Authors: ANA-MARIA RUSU, WILLIAM DUBBIN, NICOLAE HAR, KATALIN BARTÓK, WILLIAM PURVIS, BEN J. WILLIAMSON.