environmental samples Articles

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Quantitative Determination of Volatile Organic Compounds in Drinking Water by EPA Method with Headspace Trap GC-MS

by Shimadzu Scientific Instruments Inc  (Aug. 6, 2014)

Volatile Organic Compounds (VOCs) refer to a group of easily vapourised organic compounds. Under atmospheric pressure, these compounds boil below 250C. Studies have shown that prolonged exposure to the VOCs could increase the risk of various health problems, such as cancer. VOCs are commonly present in gasoline, dry cleaning solvents and ...

Biodiversity Detectives Solve Mysteries with Environmental DNA

by Ensia  (Aug. 4, 2014)

For years, Monterey Bay Aquarium’s 1.2 million gallon main tank has been a source of thrill for visitors seeking fish-eye views of life in the pounding Pacific Ocean right outside its doors. Now, thanks to advances in DNA sequencing, it’s also becoming a model for how to survey life inthat vast ocean with just a few glasses of water. ...

Direct detection of Mycobacterium avium in environmental water and scale samples by loop-mediated isothermal amplification

by IWA Publishing  (Jun. 18, 2014)

We previously demonstrated the colonization of Mycobacterium avium complex in bathrooms by the conventional culture method. In the present study, we aimed to directly detect M. avium organisms in the environment using loop-mediated isothermal amplification (LAMP), and to demonstrate the efficacy of LAMP by comparing the results with those ...

C6-C10 Gasoline range Hydrocarbons in Soil case study

by Sitelab Corporation  (May 1, 2014)

These case studies illustrate the performance using Sitelab’s UVF-3100 analyzer testing gasoline range organic (GRO) hydrocarbons, also called volatile petroleum hydrocarbons (VPH). The analyzer has optical filters sensitive and selective to hydrocarbons in the C6-C10 carbon range, including benzene, xylene and other BTEX compounds abundant ...

Eijkelkamp equipment reveals 100.000 year old records of environmental change - Case Study

by Eijkelkamp Agrisearch Equipment  (Jul. 23, 2014)

Michael Bird of the James Cook University (Centre for Tropical Environmental & Sustainability Sciences) in Cairns and his team are looking for 100.000 year old records of environmental change in the north of Australia. Michael Bird uses Eijkelkamp equipment to take sediment samples. Check the ...

Biofuel - Energy Supplier of the Future?

by Fritsch GmbH - Milling and Sizing  (May 16, 2014)

Biofuel like biodiesel, plant oil, ethanol, bio methane or the synthetic biomass- to- liquid (BtL)- fuels everyone is talking about them. They are at present the only renewable alternative in the mobility sector and already today make up 6.1 % of the fuel consumption in Germany. However, in the past months and years biofuels had the reputation ...

Sorption of per‐and polyfluoroalkyl substances (PFASs) on filter media: Implications for phase partitioning studies

by John Wiley & Sons, Ltd.  (Sep. 15, 2014)

Per‐and polyfluoroalkyl substances (PFASs) including perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) are ubiquitous in the environment. Investigations into their fate and potential phase‐partitioning behaviour require separation of solid from aqueous phases via filtration. However, sorption of aqueous‐phase PFASs on ...

Profile: Factors that influence properties of FOG deposits and their formation in sewer collection systems

by IWA Publishing  (Aug. 29, 2014)

The quantification of the factors that may affect the formation of the fat, oil, and grease (FOG) deposits and their chemical and rheological properties were predominantly covered in the paper. The factors included the types of fats used in food service establishments (FSEs) and the types of calcium sources and environmental conditions (i.e. pH ...

Environmental impact of irrigation with greywater treated by recirculating vertical flow constructed wetlands in two climatic regions

by IWA Publishing  (Jun. 25, 2014)

Reuse of greywater (GW) has raised environmental and public health concerns. Specifically, these concerns relate to onsite treatment operated by non-professionals; systems must therefore be reliable, simple to use and also economically feasible if they are to be widely used. The aims of this study were to: (a) investigate GW treatment efficiency ...

We’re farmers – of course we’re optimistic

by YARA  (Sep. 11, 2014)

"People think that farmers are unwise, that we only work with our hands. But that’s not true, we work with our brains,” says German farmer Thomas Kläber. The sun is breaking through the clouds and shedding its light on the golden fields. We’re in the German region of Brandenburg that surrounds the capital Berlin, and while ...

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