Biomonitoring Articles

186 Results found
  • Category: Monitoring & Testing ×

  • Subcategory: Biomonitoring ×

Detection of polycyclic aromatic hydrocarbons (PAHs) in raw menhaden fish oil using fluorescence spectroscopy: Method development

by John Wiley & Sons, Ltd.  (Apr. 13, 2015)

Raw menhaden fish oil was developed for biomonitoring polycyclic aromatic hydrocarbons (PAHs) using fluorescence spectroscopy. Menhaden (Genus Brevoortia) were collected from Delaware Bay, NJ (DBNJ), James River, VA, Vermillion Bay, LA (VBLA) and Barataria Bay, LA (BBLA) in 2010 and/or 2011. Barataria Bay, LA received heavy oiling from the ...

Improved sensitivity to heavy metals in the bioluminescence assay using alternative salt solutions

by microLAN On-line Biomonitoring Systems  (Apr. 1, 2015)

Introduction The marine bacterium Vibrio fischeri is widely used for the toxicity assessment of environmental samples. The toxicity is measured in a medium containing 2% NaCl. When the bacteria are exposed to toxic compounds, the light production is inhibited. Toxicity values are obtained after 15 and 30 minutes exposure and expressed as EC50 ...

Microbial fuel cell-based biosensors for environmental monitoring: a review

by IWA Publishing  (Mar. 27, 2015)

The microbial fuel cell (MFC) is an innovative technology that was initially designed to harness energy from organic waste using microorganisms. It is striking how many promising applications beyond energy production have been explored in recent decades. In particular, MFC-based biosensors are considered to be the next generation biosensing ...

Evaluation of acute ecotoxicity removal from industrial wastewater using a battery of rapid bioassays

by IWA Publishing  (Dec. 19, 2014)

The present study compares conventional wastewater treatment technologies (coagulation–flocculation and activated sludge) and powdered activated carbon (PAC) treatment for the removal of acute ecotoxicity from wastewater generated by tank truck cleaning (TTC) processes. Ecotoxicity was assessed with a battery of four commercially ...

Zebra mussels (Dreissena polymorpha) as a biomonitor of trace elements along the southern shoreline of lake michigan

by John Wiley & Sons, Ltd.  (Dec. 5, 2014)

The invasive zebra mussel (Dreissena polymorpha) has become an accepted biomonitor organism for trace elements, but it has yet to be studied along the Lake Michigan shoreline. Likewise, the relationships between tissue concentrations of elements, organism size and sediment concentrations of elements have not been fully explained. This study ...

Photo-Fenton-like treatment of K-acid: assessment of treatability, toxicity and oxidation products

by IWA Publishing  (Sep. 29, 2014)

Photo-Fenton-like treatment of the commercially important naphthalene sulphonate K-acid (2-naphthylamine-3,6,8-trisulphonic acid) was investigated using UV-C, UV-A and visible light irradiation. Changes in toxicity patterns were followed by the Vibrio fischeri bioassay. Rapid and complete degradation of K-acid accompanied with nearly complete ...

Eco-toxicity of oily wastes containing TENORM

by Inderscience Publishers  (Aug. 5, 2014)

Oily wastes are considered as one of the most hazardous waste types. Additionally to petroleum components, they can contain radioactive elements. This study aimed to estimate the toxicity of four raw and two treated waste samples obtained from petroleum production yard. Eight elutriate bioassays using plants ( Raphanus sativus and algae ...

Methylated phenanthrenes are more potent than phenanthrene in a bioassay of human aryl hydrocarbon receptor (AhR) signaling

by John Wiley & Sons, Ltd.  (Jul. 16, 2014)

Alkylated polycyclic aromatic hydrocarbons (APAHs) are abundant in petroleum but data regarding their toxicological properties are limited. A survey of all monomethylated phenanthrene structures revealed that they were 2‐5 times more potent than phenanthrene for activation of human aryl hydrocarbon receptor in a yeast bioassay. Phenanthrenes ...

Electrospun substituted polyphenylene vinylene nanofibres

by Inderscience Publishers  (Apr. 21, 2014)

Biosensors are a rapidly growing research field, which is being swiftly advanced due to recent advances in nanotechnology. However most of the sensors developed are solution based, which limits their commercial use. Thus, with the view of developing bio–nanosensors based on solid–state photoluminescent nanofibres the electrospinning process was ...

Exploring ecotoxicological fish bioassay for the evaluation of uranium reprotoxicity

by John Wiley & Sons, Ltd.  (Mar. 21, 2014)

Although reproduction in fish is known to be sensitive to metal exposure, few ecotoxicological studies have focused on the toxicological effects of metals on reproduction in fish. Because uranium (U) is naturally present in aquatic ecosystems (0.6–2 mg/L), freshwater organisms are subjected to chronic U exposure. Although new standardised ...

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