Issues


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Downloads: 923

Relationships between air pollutants and meteorological parameters in Yundola ecological stationary monitoring site

Elena Tsvetkova

University of Forestry Sofia

Abstract:

The article includes datafrom 2004 for meteorological parameters and the content of the main pollutants of Yundola ecological stationary monitoring site West Rhodopes. In modelling the interactions between single pollutant concentrations and some meteorological parameters, the strongest linear relationship identified (O3 concentration as afunction of air temperature) explained only 22 % of the variation in the data. This requires identifying more complex multiple models to describe adequately the concentration of major pollutants as afunction of some more important meteorological parameters. The five multi-linear models were calculated, among which the best demonstrated model (Multiple R = 0.62) includes datafor the concentration of O3 in the light part of the day (9.00 a.m. to 17.00 p.m.). The curve of above mentioned model explains about 40 % of the datafor the concentration of O3 during the day, i.e. these are 2407 average of half-an-hour measurements.

(Forestry Ideas, 2009, Vol. 15, No. 2) [Download]
Downloads: 1051

Solar and wind power a comparative study and assessment of the environmental impacts that may occur

Pavlina Pavlova, Nikolay Minkov, Petar Petrov, Evgeni Sokolovski

 

University of Chemical Technology and Metallurgy Sofia 

Abstract:

In this work a comparison of the environmental impacts between the generation of solar and wind energy is made. Although the analysis is still preliminary, the impact assessment on the atmosphere, water, landscapes (land usage), noise and biodiversity gave us a general outlook concerning the less aggressive type of renewable energy source for the environment.

(Forestry Ideas, 2009, Vol. 15, No. 2) [Download]
Downloads: 747

Some detailsfor the verification of the annual reportsof the operators participating in the European greenhouse gas emission trading scheme

 

Evgeni Sokolovski, Ivan Dombalov

University of Chemical Technology and Metallurgy Sofia 

Abstract:

In this paper the principal steps over the EU ETS, concerning greenhouse gas emissions permits, annual reports, verification process and the registry, are examined. A review of the basic steps over the preparation of a verification report, strategic analysis, risk analysis, etc on the basis of the experience of leading verifiers in Bulgaria is made. The main disadvantages during the preparation of annual reports are determined.  

(Forestry Ideas, 2009, Vol. 15, No. 2) [Download]
Downloads: 4585

Contemporary Physics Methods for Diagnosticand Control of Environmental Pollution

Yordanka Georgieva, Nadka Ignatova

University of Forestry Sofia 

Abstract:

Physics as an element of the fundamental tuition in ecology includes not only knowledge of the environmental processes and phenomena, and the effect of different physics factors on the environmental conditions but also knowledge of the fundamental physics methods of analysis and control of the undesirable changes in it.

All devices analyzing the condition and changes in the main environmental factors are built upon the same basic principles of operation mechanical, thermal, magnetic, electrical and optical. Following this logic we showcase the fundamental physics methods for diagnostic and control, which include: heavy metals, toxic compounds and free radicals detection methods; nuclear emission, UV, IR and nuclear absorption analysis; molecular florescence analysis; EPR; NGR, methods for remote measuring of pollutants concentration in the atmosphere through the utilization of lasers; methods for measuring of the ionizing and non-ionizing radiation; methods for measuring noise and vibrations; etc.

(Forestry Ideas, 2009, Vol. 15, No. 2) [Download]
Downloads: 917

Analysis of dynamics and spread of forest fires

Luben Elenkov

South-West University Neofit Risky Blagoevgrad

Abstract:

All forest fires are specific in their nature, but when analyzing them, certain similar objective laws are established. They are specific because time and constant parameters as well as the condition of the flammable materials are in many cases different. Scientific researchers, experiments, practical observations and experience gathered in cases of real fires broaden and enlarge the knowledge. A detailed analysis on the spread of forest fires helps orienting fast and deciding on the in time fire localization.

(Forestry Ideas, 2009, Vol. 15, No. 2) [Download]
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