biological contaminant Articles
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Linking field‐based metabolomics and chemical analyses to prioritize contaminants of emerging concern in the Great Lakes basin
The ability to focus on the most biologically relevant contaminants affecting aquatic ecosystems can be challenging because toxicity assessment programs have not kept pace with the growing number of contaminants requiring testing. Because it has proven effective in assessing biological impacts of potentially toxic contaminants, profiling of endogenous metabolites (metabolomics) may help screen ...
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Physiological and cellular responses of oysters (Crassostrea hongkongensis) in a multimetal‐contaminated estuary
The Pearl River estuary, southern China, suffers from multiple sources of metal contamination as a result of the rapid industrial development in the region; but the biological impacts of contamination remain unknown. In the present study, a euryhaline oyster, Crassostrea hongkongensis, was collected from different sites of the Pearl River estuary; and various physiological (heart rate, ...
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Resuspended contaminated sediments cause sub‐lethal stress to oysters: A biomarker differentiates TSS and contaminant effects
Resuspended contaminated sediments (RCS) represent an important route of contaminant exposure for aquatic organisms. Filter‐feeding organisms are exposed to contaminants, both in the dissolved (at the gills) and particulate form (in the digestive system), during resuspension events. In addition, these organisms must manage the physical stress associated with an increase in total suspended ...
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Soil Remediation
Remediation (the action of reversing or stopping environmental damage) and health risk assessment are increasingly required by both industry and property developers as more is understood about risks from contaminated land, and regulations become more stringent. Remediation of an industrial site may be required when an environmental permit is surrendered, or following an accidental release ...
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Biodegradation of total petroleum hydrocarbon (TPH) in Jordanian petroleum sludge
Bioremediation, or the use of micro-organisms to decontaminate soil or groundwater, is being increasingly seen as an effective, environment-friendly treatment for oil-contaminated sites. In this study, the results are presented concerning a laboratory screening of several natural bacterial consortia and laboratory tests to establish the performance in degradation of hydrocarbons contained in oily ...
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Sustainable Soil Remediation: A Complete Guide To Effective Solutions
Introduction Soil Remediation is an essential process to ensure the health and safety of our environment. Contaminated soils can have far-reaching effects on our ecosystem, as well as the health of humans and wildlife. This article aims to provide an in-depth understanding of soil remediation techniques and the most efficient methods for restoring contaminated soils to a healthy ...
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Urban and Soil Remediation
Urban and Soil Remediation (the action of reversing or stopping environmental damage) and health risk assessment are increasingly required by both industry and property developers as more is understood about risks from contaminated land, and regulations become more stringent. Remediation of an industrial site may be required when an environmental permit is surrendered or following an accidental ...
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Biofiltration: An Innovative Technology for The Future
Biofiltration refers to the biological transformation or treatment of contaminants present in the gas phase, usually air. The fact that air contaminants can be biodegraded by active bacteria has been known for quite some time. However, it is only in the last 10 years, that biofiltration has begun to emerge as an economically viable treatment process. Initially, biofiltration involved the use of ...
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Pulp and Paper Industry Facing Water Issues
Water-reuse and waste-to-energy technologies can lessen environmental impact The pulp and paper (P&P) industry is one of the largest users of water in the industrial economy of the United States. It requires an average of 54 m3 of water to produce a metric ton of pulp or paper, and almost all phases of manufacturing require water. On the downstream side, P&P mills also create ...
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Ex Situ Biological Treatment for Soil, Sediment, and Sludge
The main advantage of ex situ treatment is that it generally requires shorter time periods than in situ treatment, and there is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil. However, ex situ treatment requires excavation of soils, leading to increased costs and engineering for equipment, possible permitting, and ...
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In Situ Biological Treatment for Soil, Sediment, and Sludge
The main advantage of in situ treatment is that it allows soil to be treated without being excavated and transported, resulting in potentially significant cost savings. However, in situ treatment generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in soil and aquifer characteristics and because the efficacy of the ...
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