ISSN 2285-6064, ISSN CD-ROM 2285-6072, ISSN-L 2285-6064, Online ISSN 2393-5138
 

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Georgi PATRONOV, Diana KIRIN, Petya ZAHARIEVA, Radoslava ZAHARIEVA, Dimitrinka KUZMANOVA

Research was conducted on the state of atmospheric air in the region of the village of Voyvodino, Maritsa municipality, and Plovdiv district, Bulgaria, influenced by industrial sources of impact. The indicators of main pollutants of the atmospheric air above populated areas were measured (PM10, SO2, CO, NO2, NO, O3, Benzene, Toluene, m-p-xylene, o-xylene). The research was carried out according to established standards. The chemical and ecological state is presented. The air quality index is analyzed. An ecological assessment of the state of atmospheric air was carried out. The risk to human health, the impact of pollution on living organisms, on protected species, habitats and territories was assessed. Measures to improve the ecological state of the air have been identified.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Teuta BUSHI, Aida BANI, Selma MYSILHAKA, Franz OTTNER, Ilaria COLZI, Isabella BETTARINI, Seit SHALLARI

The objective of this study was to evaluate the ability of clay (nano- montmorillonite) to the remediation of natural (Ni) rich soils, having the nickel hyperaccumulator Odontarrhena calchidica test plant. The experiment was conducted in a greenhouse in a completely randomized design, with three replicates. The experiment was conducted in 2 kg plastic plot. We used four doses of clays: 0.0, 21.4, 44.3 and 64g kg-1, corresponding to 0, 30, 60 and 90 t ha-1, respectively. Throughout the experiment, the plants were regularly irrigated, and NPK fertilization was applied to ensure optimal growth conditions. After 60 days, the soil analyzed for total nickel in XRF and available nickel DTPA extraction in Atomic Absorption. The BFP and BFR of Odontarrhena chalcidica decreased significantly as a function of increasing doses of nano-montmorillonite, indicating an increase in the adsorption of nickel in the soil. However, the BFP and BFR values were high, indicating hyperaccumulation potential of O. chalcidica. Based on the results, the application of clay in agricultural nickel rich soils favors their improvement.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Irina POPA, Vasilica VASILE, Alexandrina MUREȘANU

Agriculture is one of the main sources generating significant quantities of natural agro-industrial by-products, such as stalks, fibrous residues, husks and cobs, etc. Based on the principles of the circular economy, such natural materials can have numerous possibilities for superior valorization, often as biocomposite materials, in various fields, not least in construction. Starting from the recognized potential for valorization of natural agro-industrial by-products in this sector, the paper presents aspects regarding the importance of compatibility and interaction between two natural materials, namely rice husks and industrial hemp fibers, and a synthetic resin as their binder. The implications of the compatibility and interactions between such types of materials and how this can influence the evolution over time of some characteristics of the biocomposite material expected to be used in the construction field as coatings are also presented.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Mădălin CRISTEA, Adrian ROȘU, Bogdan ROȘU, Daniel-Eduard CONSTANTIN, Simona CONDURACHE-BOTA, Mirela VOICULESCU, Cătalina ITICESCU, Puiu-Lucian GEORGESCU, Silvia DRĂGAN

Fine particulate matter (PM) pollution is a significant environmental and public health concern in urban areas. This study presents an extensive assessment of PM concentrations in Galați, Romania, using the RAPID-E monitoring system. The equipment was deployed at the RI REXDAN (Research Infrastructure REXDAN – George Coşbuc no. 98) to continuously measure PM concentrations at 0.3, 0.5, 1, and 5 µm from December 31, 2023 (22:00) to December 30, 2024 (22:00). The collected data were analysed to determine temporal variations in particulate matter, including monthly means, daily averages, weekday versus weekend patterns, and variations between working days and weekends. By identifying key pollution trends and fluctuations over the monitoring period, this study provides insights into the dynamics of urban air quality and potential emission sources. The findings contribute to a better understanding of PM pollution variability and support the development of effective air quality management strategies in urban environments.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Nikolina ILIEVA, Diana KIRIN

The study presents the data on the contamination of Cd, Cu, Hg, Ni, and Pb in the samples of skin, muscles, and liver of freshwater bream (Abramis brama (Linnaeus, 1758)), as well as in water and sediments samples from the studied ecosystem of the protected wetland Mandra-Poda, Black Sea Region, Bulgaria. Basic ecological indices have been determined. New data for the bioindicator significance of freshwater bream for the accumulation of trace elements in skin, muscles, and liver has been reported. Basic correlation dependencies have been indicated. Discussions on the use of freshwater bream as a food resource have been attached. The risk of pollution to human health and the environment has been assessed.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Ionela-Alexandra ION, Carmen Otilia RUSĂNESCU, Sabrina-Maria BĂLĂNESCU

Research on climate change has become a cornerstone of the global scientific and political response to one of the most pressing environmental crises. This paper provides an overview of major climate research directions, with a focus on international, European, and national institutional frameworks. Based on the analysis of strategic documents and institutional sources, the paper identifies key trends, structural gaps, and opportunities for advancing national climate research in Romania. It highlights the need for interdisciplinary approaches and stronger links between science and public policy as critical components of effective climate action.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Vlad PAUNESCU, Divyani KOHLI, Raluca MANEA, Mariana (CALIN) CIOLACU, Alexandru Iulian ILIESCU

Land fragmentation is a phenomenon that affected Western Europe in the past and, starting from 1989, the countries of Eastern Europe. One of the ways in which the effect of land fragmentation can be diminished is the process of land consolidation. Through land consolidation, owner can get better shaped parcels that can help increase agricultural productivity. Using the existent literature in the field of land consolidation, this exploratory study proposes a series of factors for land evaluation for the land consolidation process. These factors are applied in Saschiz administrative unit in Romania using different type of data to calculate the score for each factor. The result shows how this framework functions in real conditions.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Alexandru-Florin SIMION, Angela-Nicoleta GĂMAN, Sorin SIMION, Marius KOVACS

Volatile Organic Compounds (VOCs) are organic chemicals with high vapor pressure, originating from natural and anthropogenic sources, and are major contributors to environmental issues like photochemical smog and atmospheric pollution. This study introduces an optimized TD-GC-MS method for detecting and quantifying VOCs in ambient air, employing internal standards and certified reference materials to ensure analytical accuracy and traceability. The method is designed to deliver exceptional sensitivity, precision, and reproducibility, suitable for diverse environmental conditions. Key improvements include optimized thermal desorption, fine-tuned chromatographic separation, and calibrated mass spectrometric detection. Aligned with Eurachem guidelines, the integration of internal standards mitigates instrumental variability, while certified reference materials ensure traceable calibration, enhancing result reliability. The research demonstrates the method's applicability to air quality monitoring, environmental assessments, and public health research. The findings validate TD-GC-MS as a robust, reliable solution for continuous VOC monitoring and routine environmental applications, providing critical insights into pollution sources and impacts, particularly in urban and industrial contexts. This research addresses the needs of scientists, policymakers, and environmental professionals seeking effective tools to combat air pollution.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Silviu-Laurenţiu BADEA, Carmen CONSTANTIN, Liliana BĂDULESCU

Many legacy and emerging chemicals pose significant environmental concerns due to their persistence, bioaccumulation potential, toxicity, and widespread presence in environment. Among those, are organochlorine (OCs) and organophosphate (OPs) pesticides. This study aimed to develop a GC-MS/MS method for the targeted analysis of selected OCs (1,2,3,4,5,6-hexachlorocyclohexane (HCH) isomers, aldrin, and chlordecone) and OPs (dichlorvos, chlorpyrifos, and chlorpyrifos-methyl). The linearity of the developed method was assessed for selected organochlorine and organophosphate pesticides, yielding good R2 values (≥ 0.98) for all target compounds except chlordecone. Furthermore, a spiking procedure in sol and compost was developed for OCs and OPs. To quantify OCs and OPs in soil and compost, Soxhlet extraction with toluene was used, followed by clean-up with silica-based chromatographic columns. Good recoveries were obtained for aldrin and chlorpyrifos-methyl. Lower correlation with spiked concentrations for some compounds was likely due to matrix effects. The results showed that GC-MS/MS is an efficient method for the quantification of OCs, and OPs, in complex matrices as soil and compost, highlighting their applicability for environmental monitoring and contamination assessment.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Antonia Mariana PASC, Teodor Eugen MAN, Robert Florin BEILICCI, Erika BEILICCI, Mircea VISESCU

To ensure the realization and efficient technical and economic operation of an irrigation system, it is important that, from the design, a correct dimensioning of the network of underground sprinkler irrigation pipes and, respectively, of the pressure station to ensure the necessary flow and pressure on all sections of the network, starting from the calculation of the irrigation regime, is ensured. The paper presents a calculation model for the correct dimensioning of the network of underground pipes within an irrigation plot, applied to the case study of the Fântânele - Sagu plot, Arad County, which takes into account the determination of the diameter of the main, secondary pipes and the antennas in such a way as to ensure the transport of the necessary water flow in each point of the plot and respectively to ensure the pressure necessary for the operation of the mobile watering equipment at all existing hydrants on this network. In the case study, the project for the modernization and retechnology of the secondary irrigation infrastructure is presented of the SPP Fântânele - Sagu plot.

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