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This study comprehensively investigated the concentrations, distribution patterns, sources, and health risks of 16 polycyclic aromatic hydrocarbons (PAHs) found in soils around two thermal power plants in Shandong, China. The total concentrations of the 16 total PAHs (Σ₁₆PAH) in the Longguang (LG) and Xinyuan (XY) thermal power plants were 1,031.78-2,744.06 and 1,383.8-2,924.8 μg/kg, respectively,...
This study looks at using partially purified peroxidase extracted from peels of sweet lime (Citrus limetta) for decolorizing textile industry effluent. The ideal pH and thermal conditions of the enzyme were 7 and 35ºC. The Km and Vmax for guaiacol were 0.66 mM and 6666 μmol/mL/min, respectively. We found that sweet lime peroxidase was very effective in decolorizing textile industry effluent. Almost...
Although environmental problems caused by metal mining have become increasingly prominent, the pollution by associated heavy metals is easily neglected. In general, molybdenum mines are lowgrade and hence the high level of associated heavy metals easily causes pollution in the surrounding areas. Here we investigated the total concentrations and forms of Mo and associated Cu, Cd, Pb, and Zn in soils...
Urban plants have been proven to mitigate ambient particulate matter (PM), which can benefit urban planners in their attempts to control urban air pollution. In this study, PM depositions on the leaves of 8 tree species were quantitatively analysed in 7 functional areas of the city of Nanjing, China, over the course of one year. The results demonstrated that leaf PM included different particle size...
Two common Potamogeton species, Potamogeton pectinatus L. and Potamogeton crispus L., were collected in 2016 and 2017 from a lowland, sandy bed in the Wilga River in Poland to investigate the ability of the plants to adapt to changing hydrological conditions. Measurements included biomechanical properties as well as the morphological characteristics of their stems. Specifically, experiments included...
Grinding materials as a pretreatment contribute to successful composting. Here the grinding ratio of 4 raw materials and compost samples with different maturity degrees were compared and discussed. Results revealed that the highest grinding ratio was obtained when drying the 3 straws into constant weight, but keeping water content around 10% for sewage sludge. The carbon-to-nitrogen ratio (C/N) was...
Chlorpyrifos, one of the common broad-spectrum insecticides, can damage the human nerve system – even to the point of death under long-term exposure. In addition, chlorpyrifos is hard to be naturally degraded because of its strong combination with soil particles and long half-life. So repairing the polluted soil is urgently needed. In this study, the embedding and crosslinking immobilization techniques...
Over the last 5 decades, runoff from the upstream area of the Yongding River basin has greatly decreased because of changes in the climate and in the intensity of human activities. The Mann-Kendall rank correlation trend test, cumulative anomaly method, and double mass curve of precipitation and runoff were applied to analyse the hydrological sequence trends and altered features in the upstream area...
The objective of this paper was to investigate the applicability of using biowaste materials prior to reverse osmosis treatment of water and wastewater effluents. The physico chemical properties of wheat bran, maize cob, and olive waste, and adsorption parameters such as metal concentration, adsorbent dose, contact time, and temperature of Cd(II) onto wheat bran are presented. The optimal parameters...
The aim of this paper is to compare results obtained via the well-known regression method ordinary least squares (OLS) and the alternative regression method called multiple model regression estimation (MM-estimation). This is motivated by the fact that exceptional crop yield observations (outliers and leverage points) can cause misleading results if least squares regression is applied. The paper demonstrates...
The research area was situated in Kujawskie Lakeland (central Poland), where agricultural landscape, arable lands, and improved grasslands prevail. River water samples for physico-chemical analyses were collected in the years 1999, 2006, and 2010, together with macrophyte data. All studied sites were localised in the rural landscape with insignificant impact of shading on the structure of aquatic...
Some rhizobacteria are capable of improving metal tolerance and growth of plants under heavy metal stress. The objective of the current study was isolation and subsequent application of cadmium-resistant rhizobacteria in phytoremediation by Catharanthus longifolius. The screened bacterial isolate exhibited growth-promoting attributes, including phosphate solubilization, ACCD activity, auxin, and siderophores...
In arid areas, the vegetation is sparse, the ecological environment is fragile, the number of vegetation species is scarce, the community structure is unstable, and the impact of different environmental factors on the plant community is unclear. In this study, the lower reaches of the Tarim River were used as the study area, and the plant community characteristics and environmental factors were investigated...
The main objectives of waste management are environmental preservation, the safeguarding of human health, and natural resources conservation. Material flow analysis/ substances flow analysis (MFA/SFA) method takes into account the consideration of the “metabolic” system of waste management, which means monitoring waste flows and substances within the model for waste management, and examining all inputs...
Fine particles (PM₂.₅) and particulate matter (PM₁₀) monitoring data from 2015 to 2016 in 18 major cities in the Yangtze River Delta were analyzed to determine the temporal and spatial distribution characteristics of PM₂.₅ and PM₁₀ pollution in the Yangtze River Delta urban agglomeration, China. The results showed that the cities with the most serious PM₂.₅ and PM₁₀ pollution were mainly distributed...
Brutian pine (Pinus brutia Ten.) is one of the most common and precious coniferous tree species in Turkey. Except for its main distribution areas such as the Mediterranean and Aegean regions, brutian pine can be found in isolated areas due to its different forest site factors. Therefore, our aim was to obtain a model and map of this species in the Aydınca District, which is one of these isolated areas...
Our article presents the results of research aimed at determining the effect of precipitation on the level of the groundwater table and the impact of meteorological drought on the hydrogeological groundwater level in the area of Kujawy and Wielkopolska in the years 1981-2015. Monthly sums of precipitation came from Bydgoszcz and Poznan. Underground water table levels were measured by the Geological...
The Huaihe River Basin is located in-between the north-south climate transitional zone in China and is China’s important congested area and production base. The land-use of the environment was occupied by the land-use for social and economics. This paper aims to have a comprehensive understanding about land-use and vegetation evolution of the basin over the past 30 years. In view of 5 years (1985,...
Our paper presents the results of heavy metal (HM) (Zn, Cu, Pb, Cd) content in bottom sediments from retention tanks along Oliwa Stream in Gdańsk, Poland, before a flood (BF) and after a flood (AF) 14-15 July 2016. The flood had a huge impact on the quality of bottom sediments and their displacement. The concentrations of HM differed significantly for research series conducted 3 months BF and 8 months...
Our study navigated investigated the metal adsorption ability of bacterial Bacillus cereus strain HM-5 isolated from manganese ore. The effects of pH, initial metal ions concentration, biomass dose, contact time, and temperature on biosorption were studied. The results showed that the biosorption capacity of the B. cereus strain HM-5 for the metallic ions reached up to 98.9% for Mn at 600 mg/L initial...
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