1.  VOLATILE ORGANIC DISINFECTION BY PRODUCTS DETERMINATION IN DISTRIBUTION SYSTEM FROM CLUJ NAPOCA.

          Authors: MELINDA-HAYDEE KOVACS, DUMITRU RISTOIU, SIDONIA VANCEA, LUMINIŢA SILAGHI-DUMITRESCU.

2.  CHEMICAL CONTENTS IDENTIFICATION ON GC-MS FROM SELECTED SPECIES OF MACROMYCETES.

          Authors: DUMITRU RISTOIU, EMOKE-DALMA KOVACS, MARCEL PÂRVU, LUMINIŢA SILAGHI-DUMITRESCU.

3.  CHLORINATED SOLVENTS DETECTION IN SOIL AND RIVER WATER IN THE AREA ALONG THE PAPER FACTORY FROM DEJ TOWN, ROMANIA.

          Authors: VANCEA SIDONIA, MELINDA-HAYDEE KOVACS, DUMITRU RISTOIU, LUMINIŢA SILAGHI-DUMITRESCU.

4.  KINETIC MODEL FOR CHLORINE DECAY AND DISINFECTION BY-PRODUCTS FORMATION USING ABTS METHOD AND DPD METHOD.

          Authors: MELINDA-HAYDEE KOVACS, DUMITRU RISTOIU, SIDONIA VANCEA, LUMINIŢA SILAGHI-DUMITRESCU.

5.  OPTIMIZATION OF METHODS FOR THE DETERMINATION OF DISINFECTION BY-PRODUCTS IN DRINKING WATER.

          Authors: MELINDA-HAYDEE KOVACS, DUMITRU RISTOIU.

6.  SOURCE ZONE CHARACTERIZATION OF CHLORINATED SOLVENT CONTAMINATED SITES IN DEJ, ROMANIA.

          Authors: MELINDA-HAYDEE KOVACS, DUMITRU RISTOIU, SIDONIA VANCEA.

7.  TRIHALOMETHANES EVOLUTION IN DISTRIBUTION SYSTEM OF CLUJ-NAPOCA.

          Authors: MELINDA-HAYDEE KOVACS, DUMITRU RISTOIU.

8.  AIR TEMPERATURE TRENDS IN CLUJ-NAPOCA (1978-2007).

          Authors: DUMITRU RISTOIU, CONSTANTIN COSMA, SANDU-VALER TAHÂȘ.

9.  ASPECTS CONCERNING THE NANO - SEDIMENTS COMPOZITION AND DISTRIBUTION IN ST. ANA LAKE - ROMANIA.

          Authors: GEORGE ARGHIR, DUMITRU RISTOIU, RAMONA FLAVIA CAMPEAN.

10.  ATOMIC ABSORPTION SPECTROMETRY (AAS) VS. ATOMIC EMISSION SPECTROMETRY WITH INDUCTIVELY COUPLED PLASMA (ICP) IN MONITORING HEAVY METALS IN SOIL AND VEGETATION.

          Authors: DUMITRU RISTOIU, ANA ANGELA CORDOŞ.

11.  NO₂ DETERMINATION FROM AMBIENT AIR IN URBAN MEDIUM BY UV-VIS SPECTROMETRY AND CHEMILUMINESCENCE METHODS.

          Authors: DANA FLORINA MUNTEAN, DUMITRU RISTOIU.

12.  THE RELATIONSHIP BETWEEN SOLAR ACTIVITY AND THE ANNUAL PRECIPITATION IN THE CLUJ-NAPOCA AREA, ROMANIA.

          Authors: SANDU-VALER TAHÂȘ, DUMITRU RISTOIU.

13.  TRENDS OF THE GLOBAL SOLAR RADIATION AND PRECIPITATION IN CLUJ-NAPOCA, ROMANIA.

          Authors: DUMITRU RISTOIU, SANDU-VALER TAHÂȘ.

14.  IN DEPTH VARIATION OF WATER PROPERTIES FOR St. ANA LAKE – ROMANIA RELATED TO SEDIMENTS IN SUSPENSION.

          Authors: GEORGE ARGHIR, DUMITRU RISTOIU, CLAUDIA TOMA, NELI-KINGA OLAH, RAMONA FLAVIA CÂMPEAN.

15.  UV-VIS STUDY REGARDING THE INFLUENCE OF TWO POTENTIAL ENVIRONMENTAL POLLUTANTS ON THE TOTAL FLAVONOID CONTENT IN TRITICUM AESTIVUM L. AND SECALE CEREALE L..

          Authors: VIRGINIA COMAN, DUMITRU RISTOIU.

16.  FOOTPRINT AND DIRECT IMPACT OF ANTHROPOGENIC ACTIVITIES ON GROUNDWATERS FROM MEDIAS AREA.

          Authors: CECILIA ROMAN, DUMITRU RISTOIU.

17.  GROUNDWATER CHEMISTRY RENDERING USING DUROV, PIPER AND ION BALANCE DIAGRAMS. STUDY CASE: THE NORTHERN PART OF SIBIU COUNTY.

          Authors: CECILIA ROMAN, CLAUDIU TĂNĂSELIA, DUMITRU RISTOIU.

18.  INCLUSION COMPOUNDS OF β-CYCLODEXTRIN-PITOFENONE HYDROCHLORIDE. INVESTIGATIONS OF SOLID FORMS.

          Authors: IOAN BRATU, DUMITRU RISTOIU.

19.  THE IMPACT OF THE HERBICIDE GLYPHOSATE ON WATER SOURCES. A REVIEW.

          Authors: DUMITRU RISTOIU, ANDREEA DRAGUS.

20.  HEALTH RISK ASSESSMENT ASSOCIATED WITH NITROGEN COMPOUNDS CONTAMINATED DRINKING WATER IN MEDIAS REGION.

          Authors: OANA CADAR, ERIKA LEVEI, DUMITRU RISTOIU.

21.  THE EVALUATION OF THE METAL CONTAMINATION OF DRINKING WATER SOURCES FROM MEDIAS TOWN, ROMANIA USING THE METAL POLLUTION INDICES.

          Authors: CECILIA ROMAN, DUMITRU RISTOIU.

22.  COMPARATIVE STUDIES REGARDING THE USE OF RECYCLED PVC IN FINITE PRODUCTS.

          Authors: RADU MIHĂIESCU, MIHAIL SIMION BELDEAN-GALEA, DUMITRU RISTOIU, ZOSIN SERGIU PETRI.

23.  CONTRIBUTIONS OF THE SCIENTISTS FROM CLUJ TO THE COSMIC SPACE RESEARCH.

          Authors: DUMITRU RISTOIU.