Probability of Biodegradation, a Novel Concept for Improving Chemical Classification and Risk Assessment

Blok, J.

doi:10.1006/eesa.2000.1965

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…It may be also expected that the fraction of biomass able to grow on a xenobiotic chemical is lower than the fraction growing on substances commonly found in sewage. Previous ring studies have shown that the percentage of positive results in biodegradability tests is approximately proportional to the logarithm of the total viable cell density at the beginning of the test [27]. In this way, Zahn-Wellens test gave 79-98% positive results, whereas in RBT this value varied around 40%.…”

Section: Effect Of Cell Density On Biodegradability Testsmentioning

confidence: 83%

Standardization of activated sludge for biodegradation tests

et al. 2011

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Activated sludges are an inoculum source commonly used in biodegradation studies, as wastewater treatment facilities constitute an entry point to the environment for many chemicals. In this paper, the main issues relating to the use of activated sludge in biodegradability tests are presented. Special attention is also devoted to discussing the factors affecting both the activity of the microbial communities and the test results. After a short survey of the state of the art of microbiology of activated sludge, the paper focuses on the methods used to reduce the variations in the diversity, quality and quantity of these communities. Finally, use of surrogates as reference materials in biodegradability tests is discussed.

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Section: Effect Of Cell Density On Biodegradability Testsmentioning

confidence: 83%

Standardization of activated sludge for biodegradation tests

et al. 2011

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“…The most relevant approach for the environmental hazard assessment is the combination of the chemical and ecotoxicological/biological methods that has not so far been often used, mostly due to the lack of respective legislation. However, there is a growing awareness among environmental toxicologists that for the meaningful environmental hazard assessment an interdisciplinary effort of biotesting and environmental chemistry measures, considering physicochemical, molecular, toxicological, physiological and ecological processes should be used [24,32,[50][51][52][53][54][55][56][57][58][59][60].…”

Section: Ecotoxicology In Environmental Hazard Assessmentmentioning

confidence: 99%

Environmental Hazard of the Waste Streams of Estonian Oil Shale Industry: An Ecotoxicological Review

Kahru¹,

Põllumaa²

2006

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In Estonia there is the largest industrially-used oil-shale basin in the world. This review addresses the environmental hazard of the waste streams of oilshale industry via solid waste-and water-path, mainly focusing on ecotoxicological risk due to open semicoke deposition inducing hazard to surrounding soils and groundwater. This is the first comprehensive ecotoxicological review of available data on oil shale industry pollution in Estonia as well as world-wide.

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