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Volume 3
![Global NEST Journal cover](/sites/default/files/styles/large/public/2024-05/journal_cover_3_1.png?itok=Mqgdf50u)
Volume
Malaria situation in Bulgaria and surveillance measures (1991-2000)
General
The malaria situation in Bulgaria during the past decade of the century was analysed and the evaluation of the risk of re-emerging of the diseases and factors determining it in the phase of maintanence of malaria eradication was carried out. The epidemiological analysis of malaria cases notified...
Tropospheric ozone in the Czech Republic, 1994-2000
General
Air pollution is changing the ecosystems, especially in Europe. Tropospheric ozone may adversely affect tree growth, with critical levels for ozone being exceeded in many parts of Europe, especially in the Czech Republic. This research reports the information on exceedances of ozone threshold values...
Electricity generation and atmospheric pollution: The role of solid fuels gasification
General
Electricity generation in solid fuel fired power stations is currently the main source of flying particulates and greenhouse gases emissions. Environmental pollution is expected to deteriorate dramatically in the coming century unless pollution abatement technologies for solid fuels energy...
Laboratory Evaluation of Ash materials as Acid-Disturbed Land Amendments
General
Fly ash (FA) and fluidized bed ash (FBA) solutions were evaluated as amendments for acid-disturbed lands, more specifically for treating acidic and metal contaminated soil. While titrating the ash materials with different volumes of acid, pH changes were monitored as a function of time and the acid...
A rainfall simulation study of erosion of some calcareous soils
General
In order to study the erodibility characteristics of some calcareous soils from Central Greece, the instability of aggregates of 2.0-4.7 mm in water was studied. Soil loss experiments were also conducted in the laboratory using a rain simulator where soil loss was measured and the soils attitude...
Influence of Diphenyloxide Disulfonate Surfactants on Biodegradation of Hydrocarbons
General
Testing was conducted with anionic diphenyloxide disulfonate (DPDS) surfactants (C12 and C16 alkyl moieties) with naphthalene in aqueous systems and phenanthrene in soil systems to investigate the influence of these surfactants on biodegradation of hydrocarbons. A potential for enhancement in the...
The ways to prevent formation of water-soluble fluorine compounds when producing phosphate fertilizers
General
Natural phosphate raw materials contain up to 3.5% of fluorine. In reprocessing natural phosphate raw material 30 - 100 % of fluorine emits into the environment as toxic compounds. The acid is used for decomposing the carbon dioxides that are contained in raw materials. The way and technology of...
Setting priorities for wildfires suppression policy in Greece, using a relation between yearly burned areas and recovery time
General
In the Mediterranean region, fire is a natural factor, which contributes in the shaping of landscape and the preservation of a high degree of biodiversity. However, often repeated burning has negative impacts on the forested landscapes. When the processes of natural or artificial regeneration are...
Using GAC to Control THMs in drinking water, an experimental study at the Athens Water Works and an economic evaluation of the method
General
An experimental study has been carried out in an attempt to verify the efficiency of GAC (granular activated carbon) in removing THMs (trihalomethanes), and in particular CHCl3, CHCl2Br, CHClBr2 and CHBr3 from drinking water. The experiments have been conducted at a pilot scale filtering plant that...
Determination of Heavy Metals in Wet Deposition of Athens
General
The concentrations of ten industrial metals (Pb, Cd, Ni, As, Cr, Zn, Fe, Cu, Al and Mn) in 20 samples of rainwater collected at the station of Athens University Campus (AUC) during the cold period 1/10/97 - 31/3/98 were determined. In general, low concentrations were observed. The Spearman...