assay Articles
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Genotoxicity & Environmental Pollution
The Comet assay is playing an increasing role in studies to determine possible links between environmental pollutants and DNA integrity. The assay is an ideal biomarker for such investigations due to its sensitivity and reliability in detecting DNA damage and repair. Many research groups use our Comet Assay scoring systems as part of their efforts to determine the ...
By Instem Group
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Ecotoxicological Hazard Assessment of Solid-Phase Samples
Abstract: 14 samples originating from Estonia, collected from the oil-shale region (7), oil-polluted sites (4), presumably non-polluted areas (2) and 1 sediment sample from the harbor were studied for the toxicity and presence of the priority pollutants. The soil aqueous extracts were analyzed with a test battery of organisms of different trophic levels (photobacteria, crustacea, algae and ...
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Soil-mixing effects on inorganic nitrogen production and consumption in forest and shrubland soils
Abstract Soils that are physically disturbed are often reported to show net nitrification and NO3 – loss. To investigate the response of soil N cycling rates to soil mixing, we assayed gross rates of mineralization, nitrification, NH4+ consumption, and NO3 – consumption in a suite of soils from eleven woody plant communities in Oregon, New Mexico, and Utah. Results suggest that the common ...
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Specific PCR Assays for the Detection and Quantification of DNA from the Biocontrol Strain Trichoderma harzianum 2413 in Soil
Strain identification in situ is an important factor in the monitoring of microorganisms used in the field. In this study, we demonstrated the use of sequence-characterized amplified region (SCAR) markers to detect genomic DNA from Trichoderma harzianum 2413 from soil. Two primers (SCAR A1/SCAR A1c) were tested against DNA of 27 isolates of Trichoderma spp. and amplified a 990-bp fragment from T. ...
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Risk assessment and brownfields-determining exposure to site contaminants
The USEPA’s Brownfields Program was developed to facilitate the rehabilitation of contaminated property for re-development. EPA has set forth criteria that must be met for a revitalized property to be used for residential, commercial or industrial purposes. The main thrust of these criteria is the long-term protection of residents or visitors (including shoppers and business employees). As ...
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Risk Assessment and Contaminated Properties: Determining Exposure to Site Contaminants
USEPA’s Brownfields Program was established to facilitate the rehabilitation of contaminated property for redevelopment. EPA has set forth criteria that must be met before a revitalized property can be used for residential, commercial or industrial purposes. The focus of these criteria is the long-term protection of residents, employees or visitors of a new facility. There are numerous ...
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Risk Assessment and Brownfields: Determining Exposure to Site Contaminants
The USEPA’s Brownfields Program USEPA’s Brownfields Program was established to facilitate the rehabilitation of contaminated property for redevelopment. EPA has set forth criteria that must be met before a revitalized property can be used for residential, commercial or industrial purposes. The focus of these criteria is the long-term protection of residents, employees or visitors of ...
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