PROFESSOR ALFRED J. VELLA
DEPARTMENT OF CHEMISTRY

• Vella A.J. and Decelis R. Contamination of outdoor settled dust by butyltins in Malta, Applied Organometal. Chem. In press.
• Vella A.J. and Camilleri R. (2005) Fine dust emissions from softstone quarrying in Malta, Xjenza, v. 10, 47 – 54.
• Said Pullicino D., Vella A.J. (2005) Adsorption characteristics of tributyltin on municipal solid waste compost, Applied Organometal. Chem. v.19, 719-726.
• Vella A.J. (2005) University mathematics, science and technology education in Malta: Are we on course towards the Lisbon goals? In Camilleri R (ed) The Lisbon Objectives and Maltese Education Provision; Rising to the Challenge:, Proceedings. Education Division, Ministry of Education, Youth and
  Employment, Malta. pp145-155.
• Said Pullicino D., Gigliotti G., Vella A.J. (2004) Environmental fate of triasulfuron in soils amended with municipal waste compost, J. Environ. Qual.
  v.33, 1743-1751.
• Axiak V., Micallef D., Muscat J., Vella A.J., Mintoff B., (2003) Imposex as a biomonitoring tool for marine pollution by tributyltin: some further
  observations, Environment International, v. 28, 743 – 749.
• Cassar J. and Vella A.J. (2003) Methodology to identify badly weathering limestone using geochemistry: case study on the Lower Globigerina Limestone of the Maltese islands, Quarterly J. Engineering Geology and Hydrogeology, v. 36, no. 1, pp. 85-96(12)
• Grima J.N. and Vella A.J. (2002) Adequacy of pre-university mathematics curriculum as a preparation for a tertiary education in the sciences. In Gatt S (Ed) Proceedings of Conference: Linking Science, Mathematics and Technology education and their social relevance. CASTME Europe, Education Division, Faculty of Education, University of Malta, pp. 341-352.
• Vella A.J., Callus J., Galea H., Vella D.A. (2002) Air quality. In State of the Environment Report for Malta, 2002, Ministry for Home Affairs and
  Environment, 32pp.
• Vella A.J. and Vassallo R. (2002) Emission to air of volatile organotins from TBT-contaminated harbour sediments, Applied Organometal Chem. v. 16, 239 – 244.
• Vassallo R. and Vella A.J. (2002) Sorption of tributyltin by municipal solid waste compost, Applied Organometal Chem, v.16, 21-26.
• Vella A.J. and Tabone Adami J.P. (2001) Preliminary evidence for in vitro methylation of tributyltin in a marine sediment, Applied Organometal Chem, v. 15, 901-906.
• Vella A.J. (2000) Local councils and waste management: what to do and what not to do, in National Conference on Waste in Malta: the problem and its
  Management 3rd June 2000, Fondazzjoni Guze Ellul Mercer/Friedrich Ebert Stiftung.
• Axiak V., Vella A.J., Agius D., Bonnici P., Cassar G., Cassone R., Chircop P., Micallef D., Mintoff B., Sammut M., (2000) Evaluation of environmental levels and biological impact of TBT in Malta, Sci Total Environ, v. 258, 89-97.
• Vella A.J., Mintoff B., Axiak V., (2000) Analytical aspects of the gas chromatographic determination of tributyltin and metabolites in environmental
  samples, Sci Total Environ, v. 258, 81-88.
• Vella A.J. (2000) Review of studies on atmospheric pollution in urban Malta. Proceedings: Atmospheric Pollution Seminar April 1999, University of Malta, 84 - 91.
• Vella A.J. and Bugeja D. (1999) Report on air quality. In State of the Environment Report for Malta, 1998, Environment Protection Department, Ministry for the Environment, Malta, 21pp.
• Axiak V., Gauci V., Mallia A., Mallia E., Schembri P.J., Vella A.J. (1999) State of the Environment Summary Report for Malta 1998, Malta Univ. Press., 130pp.
• Vella A.J. and Gaerty O. (1998) Benzene and toluene in urban air in Malta, Xjenza, v.3(2) 29 - 32.
• Vella A.J., Mintoff B., Axiak V., Agius D., Cassone R. (1998) Organotin pollution in Malta coastal zone, Toxicological and Environmental Chemistry, v. 67/3-4, 491-510.
• Vella A.J. (1998), University participation towards achieving NEHAP environmental and health goals, in Department of Health Policy and Planning,
  Ministry of Health (Malta), Abstracts: NEHAP Workshop: Implementation Through a Co-ordinated Multisectoral Approach, 9th June 1998, 6.
• Vella A.J., Testa S., Zammit C., (1997) Geochemistry of the soll facies of the Lower Globigerina Limestone Formation, Malta, Xjenza, v. 2(1) 27-33.
• Axiak V. and Vella A.J. (1996) Monitoring environmental quality of coastal waters in Malta in Axiak, V (Ed), Marine Pollution in Malta, the problem and its management, Malta Council for Science and Technology, 42- 51.
• Vella, A.J. (1996) Science education in a restructured sixth form, Xjenza, v. 1(2) 44-45.
• Vella, A.J., Camilleri AJ, Tabone Adami JP, (1996) Limestone surfaces in built-up environment as indicators of atmospheric pollution, Environmental
  Geochemistry and Health, 18(40) 165-170.
• Vella, A.J., (1996) Arson fire as a cause of explosion in limestone buildings, Fire and Arson Investigator, 47(4): 10-14.
• Axiak V., Vella A.J., Schembri P.J., Agius D., Bonnici P., Borg J., Cassar G., Cassone R., Chircop P., Mallia A., Micallef D., Mintoff B., Sammut M., Pisani S., Vasa A. (1995) Evaluation of levels and environmental impact ofTBT in Malta, in Conference Proceedings: Costs vs Benefits of TBT and Alternative Antifoulants, An International Conference Malta 4-6 December 1995, Euro-Mediterranean Centre on Insular Coastal Dynamics, 5-8.
• Vella, A.J., Mintoff B., Axiak V., (1995) Pollution by tributyltin in the marine environment in Malta, in Conference Proceedings: Costs vs Benefits ofTBT and Alternative Antifoulants, An International Conference Malta 4-6 December 1995 Euro-Mediterranean Centre on Insular Coastal Dynamics, 21.
• Axiak V., Vella A.J., Micallef D., Chircop P., Mintoff B., (1995) Imposex in Hexaplex trunculus (Gastropoda: Muricidae): first results on biomonitoring of tributyltin contamination in the Mediterranean, Marine Biology, 121:685-691.
• Vella, A.J. (1994), Fire incidents in Malta: a review, Insurance Quarterly, v. 9, 5-9.
• Taliana C., Cassar J., Vella A.J., Ventura F. (1994) Factors causing deterioration of frescoes within a mediaval church in Malta and a proposed solution, International Symposium on the Conservation of the Relics of Mediaeval Monumental Architecture, Warsaw-Lednic, 24-26 May 1994, 125 – 130.
• Vella, A.J. (1994) Laboratory explosion danger from mixing magnesium and copper oxide, Journal of Chemical Education, v 71, 4, 328.
• Vella A.J. (1994) Fuel mixtures: a forensic question, Education in Chemistry, v31, 2,46-49.
• Axiak V., Vella A.J., Micallef D., Chircop P., Mintoff B. (1993) Biological markers of coastal contamination by antifouling organotins: a case-study in Malta (Central Mediterranean), Proc. Clean Seas 93 Conference.
• Axiak V., Sammut M. and Vella A.J. (1993) Laboratory and field investigations on the effects of organotin (tributyltin) on the oyster Ostrea Edulis, in Environmental toxicology: hazards to the environment and man in the Mediterranean region Abstract Book, Regional Meeting of the Society of Exotoxicology and Environmental Safety, September 1993, Rome, 74.
• Vella A.J., Demanuele J. and Caruana S., (1993) Atmospheric sulphur dioxide pollution in Malta: a preliminary study, Maltese Medical Journal, v 5, 2, 34 - 38.
• Vella A.J. (1992) Arson investigation using the Ion Trap Detector, Journal of Forensic Science Society, v.32(2), 131-142.
• Vella A.J., (1992) Ion trap detector mass spectrometry: practical considerations, Organic Mass Spectrometry, v.27, 145-150.
• Vella A.J. (1992) Chemical analysis by ion trap detector mass spectrometry, Ellul-Micallef and Fiorini S (Ed) Collected Papers, University of Malta, Malta, 589 – 601.
• Vella A.J. and Holzer G. (1992) Distribution of isoprenoid hydrocarbons and alkylbenzenes in immature sediments: evidence for direct inheritance from bacterial/algal sources, Organic Geochemistry, v.l8, 2, 203-210.
• Vella A.J. and Mallia E.A. (1991) Nitrate content of Malta and Gozo tapwater, Occasional Publication of the Institute of Energy Technology, University of Malta, Malta, 18pp.
• Vella A.J., Cassar J., Brincat D., Copperstone S. (1991) Water seepage in Hal Saflieni Hypogeum, Malta: tracing the source by chemical analysis, in Ganorkar M.C. and Rama Rao N. (Ed) Proc. 1st Int'l. Colloqium on the Role of Chemistry in Archaeology, Birla Institute of Scientific Research, Hyderabad, India, 9 -16.
• Vella A.J. (1990) Redox reactions and the electropotential axis, Journal of Chemical Education, v.67, 6, 479-481.
• Vella A.J. and Holzer G. (1990) Ether-derived alkanes from sedimentary organic matter, Organic Geochemistry, v.l5, 2, 209-214.
• Vella A.J. and Borg V. (1989) Change in fluoride content of Maltese tap waters: implications for oral health, Maltese Medical Journal, v.l, 3, 14-17.
• Vella A.J. (1988) Air pollution and the proposed power station at Delimara, in Critical Report on Proposed Power Station at Delimara, Zghazagh ghall-Ambjent, Malta, 15-38.
• Vella A.J. (1987) Chemical stress on the environment, Proc. Nat'l. Training Workshop Environ. Educ. (Malta), UNESCO/IDEA/FIS, 25-37.
• Vella A.J. (1987) A didactic approach to bond energy terms, Science Teacher, v.3, 17-24.Vella, A (1986): Origin of petroleum, Spectra, v.4, 14-20.
  MacCarthy, P., Vella A., and Hill Z.D.(1983): A novel procedure for implementing the mole-ratio method, Abstr. Proc. 25th Rocky Mountain Conf., Colorado, Soc. Appl. Spectroscopy, 20.
• Vella A. (1981) Answer to oxidation number question, Chem 13 News, v.125, 8.
• Vella A. (1980) More about inorganic complexes, Hyphen, v.2, 3, 123-129.Vella, A (1978): Inorganic complexes: an introduction, Hyphen, v.l, 3, 31- 39.
• Vella A. (1976) Some aspects of molecular symmetry, School Science Review, v.57, 201, 673 - 685