Biomonitoring Articles

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Ninth Circuit Denies EPA’s Request for Six-Month Extension on Chlorpyrifos Decision; Grants Three-Month Extension

by Bergeson & Campbell, P.C.  (Aug. 23, 2016)

On August 12, 2016, a three-judge panel of the Ninth Circuit Court of Appeals issued an order denying the U.S. Environmental Protection Agency’s (EPA) request for an additional six months to decide whether to ban agricultural uses of chlorpyrifos. The court opted instead to afford EPA a three month extension, stating that “this is the ...

EPA Issues FIFRA SAP Minutes on EPA Proposal to Use Biomonitoring Data to Derive a PoD for Chlorpyrifos

by Bergeson & Campbell, P.C.  (Aug. 2, 2016)

On July 20, 2016, the U.S. Environmental Protection Agency (EPA) issued a memorandum attaching minutes from the April 19-21, 2016, FIFRA Scientific Advisory Panel (SAP) meeting, Transmittal of Meeting Minutes of the April 19-21, 2016 Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) ...

E-guide for Measuring TAN and TBN in Oil

by Spectro Scientific  (Jul. 19, 2016)

Monitoring TAN and TBN is an important test for measuring lubricant condition. There are several methods available ranging from expensive laboratory methods to quick field tests. In a laboratory setting, methods are chosen based on the highest accuracy and repeatability that can be achieved with a decent throughput. Out in the field, it is most ...

E-Guide Measuring Oil Viscosity

by Spectro Scientific  (Jul. 13, 2016)

The most important physical property of a lubricating oil is viscosity. Viscosity determines the load carrying ability of the oil as well as how easily it circulates. The correct balance between high viscosity for load carrying and low viscosity for ease of circulation must be considered for any lubricant and its application. ...

5 Hallmarks of a world-class Behavior Based Safety Program - White Paper

by Intelex Technologies Inc.  (Jul. 13, 2016)

What are some of the key aspects you should consider when implementing a behavior based safety system? In an effort to improve safety performance, organizations are continuously challenged to find new ways to prevent incidents or injuries. A Behavior Based Safety system allows organizations to identify trends associated with at-risk behaviors in ...

Four Methods to Measure TAN/TBN in Lubrication Oil

by Spectro Scientific  (Jun. 21, 2016)

TOTAL ACID NUMBER A high concentration of acidic compounds in a lubricant can lead to corrosion of machine parts and clogged oil filters due to the formation ...

Sorption and toxicity reduction of pharmaceutically active compounds and endocrine disrupting chemicals in the presence of colloidal humic acid

by IWA Publishing  (Jun. 8, 2016)

This study investigated the toxicity changes and sorption of pharmaceuticals and endocrine disrupters in the presence of humic acid (HA). For the sorption experiment, a dead end filtration (DEF) system was used to separate bound and free-form target compounds. An algae growth inhibition test and E-screen assay were conducted to estimate the ...

Top International News in Chemical Policy and Regulation

by Acta Group  (May 30, 2016)

AUSTRALIA Australia Releases Third Consultation Paper Concerning NICNAS Reform: On April 29, 2016, the National Industrial Chemicals Notification and Assessment Scheme (NICNAS) published the third consultation paper on its  ...

A modular diagnosis system based on fuzzy logic for UASB reactors treating sewage

by IWA Publishing  (Mar. 31, 2016)

A modular diagnosis system (MDS), based on the framework of fuzzy logic, is proposed for upflow anaerobic sludge blanket (UASB) reactors treating sewage. In module 1, turbidity and rainfall information are used to estimate the influent organic content. In module 2, a dynamic fuzzy model is used to estimate the current biogas production from ...

An improved method for determining microbially available phosphorus in drinking water

by IWA Publishing  (Mar. 15, 2016)

Microbially available phosphorus (MAP) is the labile phosphorus that is readily assimilated by microorganisms, which is linearly correlated to bacterial re-growth in drinking water in some regions. The conventional MAP bioassay for drinking water was originally developed by Markku based on the growth potential of Pseudomonas fluorescens P17 ...

Measuring willingness-to-pay for water and sanitation by people living with HIV and AIDs in South Africa

by IWA Publishing  (Feb. 16, 2016)

The ill-provision of water and sanitation services poses the greatest risk to people living with HIV and AIDS in South Africa – a majority of whom reside in slum settlements. People living with HIV and AIDS (PLWHA) die after succumbing to opportunistic infections, especially water-borne diseases (e.g., diarrhoea, cholera). This study was based ...

Development of Helisoma trivolvis pond snails as biological samplers for biomonitoring of current‐use pesticides

by John Wiley & Sons, Ltd.  (Feb. 15, 2016)

Non‐target aquatic organisms residing in wetlands are commonly exposed to current‐use pesticides through spray drift and runoff. However, it is frequently challenging to measure exposure due to rapid dissipation of pesticides from water and reduced bioavailability. Our hypothesis is that freshwater snails can serve as bioindicators of pesticide ...

Comparative study on toxicity evaluation of anaerobically treated parboiled rice manufacturing wastewater through fish bioassay

by IWA Publishing  (Jan. 19, 2016)

Short term aquatic bioassay has been developed into a useful tool in water quality management. These tests give information on comparative toxicity of several compounds. The objective of this study was to evaluate the acute toxicity of raw and anaerobically treated effluents of the parboiled rice manufacturing industry. The acute toxicity test ...

Generation of mt:egfp transgenic zebrafish biosensor for the detection of aquatic zinc and cadmium

by John Wiley & Sons, Ltd.  (Jan. 11, 2016)

Zebrafish embryo toxicity test has become a popular method for detecting the environmental pollutions. But our research showed that zebrafish embryos exhibited no visible paramorphia, malformation or mortality when exposed to heavy metals in a range above the environmental standard limits, indicating that zebrafish embryo an imprecise model in ...

Chronic effects of non‐weathered and weathered crude oil and dispersant associated with the deepwater horizon incident on development of larvae of the eastern oyster, Crassostrea virginica

by John Wiley & Sons, Ltd.  (Jan. 8, 2016)

In this study we examined the effects of chronic exposure of eastern oyster (Crassostrea virginica) larvae to the water‐accommodated fractions of fresh and weathered oils collected from the Deepwater Horizon (DWH) incident, with and without additions of the dispersant Corexit 9500A, as well as to solutions of Corexit alone. We found that both ...

Cam correlation analysis using Acoustic discharge measurement

by HydroVision GmbH  (Dec. 4, 2015)

The low head hydro power plant in Wettingen, Switzerland, is in operation since 1933 and no effective cam optimization has been carried out up to now. The goal of the measuring campaign was to provide data enabling an economic study for a retrofit and upgrade project of the plant and the measurement of the efficiency improvement of turbines after ...

Discharge Measurement in a Short Intake with a Converging Section – a Case Study

by HydroVision GmbH  (Dec. 4, 2015)

In the context of a planned retrofit and upgrade of the hydropower plant Wettingen, operated by the Elektrizitätswerke Zürich, three intakes were equipped with acoustic transit time flow measuring devices. Since the flow meters are installed in a converging section, downstream of a pier, it became necessary to perform numerical flow ...

The Challenge AER-200 Respirqmeter System for anaerobic applications

by Challenge Technology  (Nov. 25, 2015)

The CHALLENGE AER-200 Respirometer System consists of one or more biological reaction vessels, gas flow measuring cells, and a computer. The gas measuring base contains eight flow cells and associated interconnecting circuitry. As gas flows through each cell under the influence of a slight pressure caused by gas production in the reaction vessel, ...

A Bayesian network-based data analytical approach to predict velocity distribution in small streams

by IWA Publishing  (Oct. 23, 2015)

Developing a reliable data analytical method for predicting the velocity profile in small streams is important in that it substantially decreases the amount of money and effort spent on measurement procedures. In recent studies it has been shown that machine learning models can be used to achieve such an important goal. In the proposed ...

Measuring total mercury due to small-scale gold mining activities to determine community vulnerability in Cihonje, Central Java, Indonesia

by IWA Publishing  (Oct. 5, 2015)

This research is comparative study of gold mining and non-gold mining areas, using four community vulnerability indicators. Vulnerability indicators are exposure degree, contamination rate, chronic, and acute toxicity. Each indicator used different samples, such as wastewater from gold mining process, river water from Tajum river, human hair ...

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