Session of scientific communications - October 3, 2011
Environmental metal ions pollution effect on honey quality
Prof. Dr. Elena DIACU1, Ing. Alexandru Anton IVANOV2,
1-UPB-CASM, Department of analytical chemistry and instrumental analysis, 2-ACS-INCDPM
| This work covers the subject of “Environmental metal ions pollution effect on honey quality” and its intended purpose is to present the analytical methods employed for the cadmium content analysis from the honey samples (sample mineralization followed by GFAAS analysis) and to present the results obtained for 4 honey samples sampled from different geographic areas. Preliminary analysis of the results showed some correlations between the assumed environmental quality from the sampling locations and the cadmium content analyzed (Ilfov – 21.17µg/kg and Mureş – 0.016µg/kg). Additional 12 honey and 12 flower samples were sampled and analyzed in order to further investigate the correlation degree of the cadmium content of the honey samples with the content from the nearby flowers. The correlation between honey type and its corresponding environmental source were also investigated. A good correlation was found for the flowers cadmium content and the content of the respective honey samples. The best correlation was found for the multi-floral honey and floral mixtures from the same areas. In conclusion, the honey shows a good potential for use as a bio-indicator for environmental heavy metals background quality assessment in the areas were beekeeping is possible. |  |
Technical Solutions for Diminishing Sulphur Dioxide Atmospheric Emission
Cristian Ivanciu, Gabriela Pietrăreanu, Cristina Ene, Ana Maria Nicolescu
| Government Decision no. 440/2010 transposing EU Directive 2001/80/EC has the goal of estalishing measures to limit air emissions of certain pollutants, including sulphur dioxide(SO2) emissions from Large Combustion Plants (LCPs – with powers installed greater or equal to 50 MW). Emission inventory of air pollutants from Romania in 2009 revealed a total emission of sulphur dioxide of 500 Gg of which 424 Gg were from LCPs. The SO2 emissions ceiling established by the NEC Directive for 2010 is 336 Gg. This value is unlikely to be complied with. At present, the 2010 inventory is under preparation. For this reason solutions were investigated leading to compliance with the ceiling set. The proposed solutions are of two types. The first type of measures does not involve implementation of special equipment to reduce SO2 emissions. These solutions are related to the use of low sulphur fuels or the provision of multi-fuel burners. The paper refers to the second type of measures and in particular to the solution treatment with calcium hydroxide solution of flue gas containing SO2, with the formation of calcium sulphate. The paper also presents the solution of hydrogen sulphide adsorption on granular activated carbon. |
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Presentation of ADMS-Urban modeling software
Ana-Maria NICOLESCU, Andrei Cristian IOSIF
| Studing the dispersion phenomenon of pollutants in atmosphere with ADMS-Urban (Atmospheric Dispersion Modelling System) has many advantages for air quality management because through mathematical modeling we can: determine the pollutant concentrations at receptors, assess the contribution of sources, determine the environmental impact of pollution targets before they are built, design air quality monitoring networks, develop strategies to reduce air pollutants emissions to meet air quality standards for certain areas, adopt measures necessary to limit and eliminate the negative effects for environment. |
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