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For this study, geochemical data were examined to determine the main factors and mechanisms controlling the water chemistry and the salinity of low Soummam basin in Algeria. Parameters such as pH, EC, temperature, and major and minor element concentrations for two sampling campaigns at the extreme hydrological regimes were considered. The analytical results obtained were interpreted using in particular...
Environmental management in urban areas is a complex issue involving problems of natural resources conservation as well as general issues concerning the processes of urbanization and development. The wide range of these problematic aspects requires a strategic approach, relevant to the sustainable development principles along with the complex analysis of a given potential. Here, value chain analysis...
This paper discusses the issue of medical waste, which is highly significant from the perspective of environmental protection. It describes the waste classification criteria, the methods of its collection, and neutralization. They are based on the legislation, including above all the Waste Act of 27 April 2001. The priority goal of the Act is to ensure that human health and life are protected. The...
Interest in the determination and screening of pesticide residues in soil is caused by widespread use of chemical pesticides in agriculture, which increase soil contamination. Two extraction techniques, matrix solid phase dispersion (MSPD) and liquid-liquid extraction (LLE) of residual pesticides (acaricides, insecticides, herbicides, and fungicides) from soil were compared. Advantages and disadvantages...
To determine the growth rate and element contents of fingernails in young adults, 109 apparently healthy college students were recruited for determination. As a result, the average growth rate of the left thumb was 3.14±0.63 mm/month with significantly faster rates in male and taller participants. The concentrations for Ca, Na, P, K, and Mg were 701.1±274.8 µg/g, 452.3±353.9 µg/g, 33l.6±119.7 µg/g,...
The Water Framework Directive (WFD) introduced the obligation to monitor hydromorphological elements of rivers, including hydrological regime, river continuity, and riverbed morphology. It is estimated that by the year 2015 all uniform water bodies in the EU will be ensured at least very good (class I) or good (class II) ecological status plus good ecological potential. European standards define requirements...
Population pressure and land use activities in urban areas are deteriorating the health of ecologically rich tropical rivers. Despite various programs and enforcement carried out by government agencies, most river conservation projects are not sustained according to the expected objectives. Much of the blame is due to lack of public environmental awareness and participation. However, there is a lack...
Our study assessed the non-carcinogenic risks of heavy metals in the sources of drinking water treatment plants located along Huaihe River in Jiangsu Province, China. High-resolution inductively coupled plasma-mass spectrometry and inductively coupled plasma-atomic emission spectroscopy were used to determine the levels of eight metals in the water from 30 treatment plants. Non-carcinogenic risks...
Activated Sludge Model No. 1 (ASM1) was used in the modeling of an activated sludge system treating effluents from an oil refinery. The measurements of the diurnal variation in wastewater flow and composition at the wastewater treatment plant inlet and outlet were carried out. The calibrated model predicting the influence of changes in the wastewater composition and the operational parameters on the...
In an agricultural landscape small midfield ponds fulfill biocenotic and physiocenotic functions. A variety of species settle in areas of midfield ponds. The aim of our studies was to determine whether the occurrence of aquatic and marsh species in the studied bodies of water is a random effect or a result of spatial autocorrelation. On the basis of conclusions from ESDA, the hypothesis of spatial...
Four field experiments were conducted to determine the effects of the use of plane (Titan, Karnaval, Festival, and Natalka) and curled-leaf cultivars (Paramount, Petra), the quality of transplants raised in different cell volumes (95, 69.3, 32.0, 25.6, 10.0 cm³), Jiffy pots - (112.5 cm³) and the number of plants per cell (1, 2, and 3), as well as plant cover in the field with perforated foil fleece,...
To investigate the biological activities of anthocyanins, which are induced by cadmium in A. imbricata, the antioxidant properties of anthocyanins were investigated using various antioxidant assays, namely 1,1 -diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, 2,2'-azinobis-(3-ethylbenzthiazoline-6- sulfonic acid) (ABTS) radical scavenging activity, reducing power, and β-carotene bleaching...
Bee pollen belongs to bee products that are characterized by high nutritional value and biotic activity. These characteristics result from the wide variety of compounds that bee pollen contains. Our study determined the effects of storage conditions of bee pollen extracts on polyphenol content. The study was conducted with the use of three types of bee pollen extracts, namely ethanol extracts, enzymatic...
In our study conducted in north-central Poland in 2001-09 in the lessive soil of a very good rye complex, a relationship between the yielding of tansy phacelia and common sunflower grown as stubble catch crop and the weather conditions that prevailed during the growing period were estimated. The yield of the tested plants grown as stubble catch crop was significantly dependent only on the total precipitation...
The aim of the study was to determine the level of air bacteria and fungi in the horse stable and the emission of microorganisms to the external environment during different seasons of the year. The predominating fungi in the stable and outside were also identified. These results demonstrate that both in the stables and outdoors, the number of microorganisms was the highest in the summer. This tendency...
In this paper I studied the occurrence and distribution of zoosporic true fungi (Blastocladiomycota) and heterotrophic straminipiles (Hyphochytriomycota and Oomycota) from the water of three springs of the Biała River (Sobolewo, Dojlidy Górne, and Kurjany springs) in the vicinity of Białystok. Twenty-one species of zoosporic true fungi and heterotrophic straminipiles belonging to 10 genera of the...
The experimental materials comprised the fruits of tomato cv. Robin F1 and red pepper cv. Mira harvested from plants sprayed three times with the growth regulator Asahi SL, the biostimulator Biochikol 020 PC, the biocontrol agent Polyversum, and the fungicide Bravo 500 SC. Control plants were sprayed with sterile water. Total fruit yield, average fruit weight, and the concentrations of total extract,...
A field experiment was carried out in the Department of Agronomy of Poznań University of Life Sciences on the fields of the Research and Education Unit in Swadzim in 2009-10. Two different genotypes of maize cultivated for grain that exhibited different aging rates were compared: ES Palazzo and ES Paroli "stay-green"-type cultivar. The dynamics of dry matter accumulation were assessed 10...
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