heavy metals Articles
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Cysteine synthesis in Scorpiurum circinatum as a suitable biomarker in air pollution monitoring
Heavy metals enter ecosystems by both natural and anthropogenic processes. An excess of metals in the environment damages plant metabolism, leading to oxidative stress in the cell. Most metal ions present in the cell are bound to low molecular mass ligands. The major types of S-containing ligands involved in metal binding are derived from cysteine. The authors show, for the first time in ...
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Monitoring and assessing heavy metals in topsoils as potential diffuse pollutants in the Pyeongchang River Basin, Korea
Topsoils, mainly from crop fields, orchards, forests, and barns around the Pyeongchang River, were collected to investigate their heavy metal concentrations. Pollution load index, ecological risk index, and enrichment factor were applied to assess levels of heavy metal contamination for topsoils. The concentrations of cadmium (Cd) (1.7 mg/kg) and chromium (Cr) (4.1 mg/kg) exceeded the troublesome ...
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Innovative approach to contaminated soil phytoremediation: Heavy metal phytoextraction using energy crops
Heavy metal accumulation potential in the biomass and different plant parts of the selected species of energy crops cultivated on contaminated soil was evaluated. Phytoextraction potential, biomass yield and qualitative parameters of bioenergy plants grown on heavy metal contaminated soil has been measured. Finally heavy metal influence on biomass utilization possibilities, energy recovery and ...
By Biovala
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Heavy metal pollution of soils along North Shuna-Aqaba Highway, Jordan
Attention to heavy metal contamination associated with highways or motorways has risen in the last decades because of the associated health hazards and risks. The present study analysed the metal content in soil samples of one of the main highways along the western part of the Jordanian border, the North Shuna–Dead Sea–Aqaba Highway. The metals analysed were Pb, Zn, Cd, Co and Ni. In the samples ...
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Analysis of the heavy metal pollutants in sediment samples collected from Thane Creek of Maharashtra, India
The wetland of Thane Creek, located at Thane, Mumbai, India, has attracted much attention of environmental biologists over the last few decades, as this creek has been subjected to a lot of pollution from the Asia's biggest Thane–Belapur industrial complex located at the south of Mumbai harbour along the west coast of India. This paper advocates ecological studies with special reference to the ...
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Affinity–based biosensors for heavy metal detection
In recent years, there has been a pressing need for fast and reliable methods for environmental monitoring. Among the various pollutants, the heavy metals are some of the most harmful because these substances are non–biodegradable and retained by the ecological system. Conventional analytical techniques for heavy metals imply high cost, trained personnel and the repute that they are mostly ...
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Pollutant monitoring in sludge treatment wetlands
Phragmites australis for sludge dewatering and stabilization processes have been widely proved. The presence of reeds, indeed, efficiently allows solids dewatering and organic matter stabilization in order to obtain a stabilised product that can be suitable for land application, even if its environmental impact has to be considered. The actual revision of the European Union's Working Document on ...
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Evaluation of statistical distributions to analyze the pollution of Cd and Pb in urban runoff
Heavy metal pollution in urban runoff causes severe environmental damage. Identification of these pollutants and their statistical analysis is necessary to provide management guidelines. In this study, 45 continuous probability distribution functions were selected to fit the Cd and Pb data in the runoff events of an urban area during October 2014–May 2015. The sampling was conducted from the ...
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Effects of a porous pavement with reservoir structure on runoff water: water quality and fate of heavy metals
ABSTRACTThe present paper reports a study conducted to compare pollutant loading of runoff waters either collected at the outlet of a porous pavement with reservoir structure or coming from a nearby catchment drained by a conventional separate sewarage system, on the experimental site of Rezé (France). The mean pollutant loads measured at the reservoir structure appear notably lower than those ...
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A statistical approach applied to trace metal data from biomonitoring studies
This work underlines the importance of the statistical procedures necessary for the significant assessment of analytical data of heavy metals derived from marine organisms (biomonitors) collected at five stations in Ustica at the Southern Tyrrhenian Sea. The statistical method described indicates that, where the differences among the averages of Pb, Cu and Zn concentrations in the molluscs of the ...
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The effect of human activities on the pollution of water in southwest Giza area, Egypt
Southwest Giza area is one of the most complicated regions in Egypt because of the combination of agricultural, industrial and urbanization activities with few studies about water resources contamination with heavy metals. In this study, ten surface water samples and eight groundwater samples were collected and analyzed for pollution with Fe, Mn, As, Cr, Cd, Pb and Cu. The samples were ...
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Biomonitoring of concentrations of platinum group elements and their correlations to other metals
Biomonitoring of Pt, Pd, Pb, Mn, Cu, Fe and Zn was conducted using leaves (two and six months old) of laurel (Laurus nobilis L.) ornamental shrubs grown in 14 sampling sites located on the central green belts of six avenues and streets of Athens. In this biomonitoring, we determined, for the first time in Greece, the concentrations of the new urban "pollutants" Pt and Pd, and we estimated the ...
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Distribution of chromium, cadmium, nickel and lead in agricultural soils collected from Kazanli-Mersin, Turkey
This study reports total levels of chromium, cadmium, nickel and lead in the agricultural land adjacent a factory producing chromate compounds in Kazanli-Mersin. Surface soil samples were collected from fields around the factory as well as from fields farther away to measure contamination due to aerial transportation and deposition of dust produced in the industrial process. Heavy metals in soil ...
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Zebrafish as a model system to study toxicology
Monitoring and assessing the effects of contaminants in the aquatic eco‐environment is critical in protecting human health and the environment. The zebrafish has been widely used as a prominent model organism in different fields because of its small size, low cost, diverse adaptability, short breeding cycle, high fecundity, and transparent embryos. Recent studies have demonstrated that ...
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Use of a three-dimensional model to predict heavy metal (copper) fluxes in the Oujiang estuary
Measuring pollutant concentrations in major tributaries is the standard method for establishing pollutant fluxes to the sea. However, this method is costly and difficult, and may be subject to a great deal of uncertainty due to the presence of unknown sources. This uncertainty presents challenges to managers and scientists in reducing contaminant discharges to water bodies. As one less costly ...
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Levels of cadmium, manganese and lead in water and algae; Spirogyra aequinoctialis
This study assessed the ability of filamentous green algae; Spirogyra aequinoctialis to accumulate manganese, cadmium and lead from water. Water pH was also determined. Samples of S. aequinoctialis and their respective water environments were taken from designated sampling points in the city of Blantyre and Malawi during the rainy and dry season in order to capture seasonal variations. The ...
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Wastewater Monitoring in Akouedo/Abidjan, Cote d´ Ivoire with Gaiasafe Passive Collectors (PC)
Abstract Contamination load and distribution of contaminants is shown. Gaiasafe Passive Collectors have been used successfully to determine single compounds out of the contamination load. Furthermore the spreading and biodegradation of contaminants was monitored over a large area in Abidjan. Only a few days after the dumping the chemical waste from Probo Koala was detected in the surface water, ...
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Guidelines for the use of mosses and soils in monitoring contaminant fallout
In 1999 Italy’s Environmental Protection Agency (ANPA) published a paper on the methods to be used in the case of mosses and soils. After nearly a decade, a review is advisable. The attached Guidelines take account of numerous experiments in the environmental field and include a short description of bryophyte biology. A great many pollutants are present in our environment. In addition to ...
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ANDalyze product Brochure
One of the most important discoveries in the last decade is that DNA/RNA are not only materials for genetic information storage and transfer, but also catalysts for a variety of biological reactions, and thus called catalytic DNA/RNA, (deoxy)ribozymes, or DNA/RNAzymes. Because metal ions play essential roles in the structure and function of DNAzymes, the study and application of these new ...
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Monitoring - Pollution Prevention Guidelines
Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum emissions ...
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