Acute Toxicity Testing Articles & Analysis
69 articles found
Abstract : The acute toxicities of the first 50 chemicals (dextropropoxyphene hydrochloride excluded) of the multicentre evaluation of in vitrocytotoxicity (MEIC) programme were determined on four aquatic invertebrates and a bacterial strain (Photobacterium phosphoreumfor the MicrotoxTM test) commonly used in ecotoxicology ...
Additionally, different pre-treatments were used to break the cells before extraction. Acute toxicity was determined with the fairy shrimpThamnocephalus platyurus, subchronic effects were detected in embryos and larvae of the zebrafishDanio rerio. ...
Acute and chronic bioassays were carried out with a battery of test organisms. The acute toxicity was assessed using Daphnia magna (crustacea) and Vibrio fischeri (luminescent bacteria). The chronic toxicity was tested with Selenastrum capricornutum (green algae) and Lepidium sativum (a higher ...
Abstract : A 24 h acute toxicity test for freshwater is described using the rotifer Brachionus rubens hatched from cysts. ...
Abstract :A new method is presented for determination of the acute toxicity of chemicals and effluents to larvae of the freshwater anostracanStreptocephalus proboscideus(Frauenfeld), using resting eggs (cysts) as the source of test organisms. The larvae are obtained by controlled hatching of standard reference eggs. For the ...
Abstract : The Microtox acute toxicity test using the luminescent bacterium Vibrio fischeri, was chosen as a complementary descriptive parameter of toxic pollution in the framework of monitoring surface water quality in Wallonia, Belgium. ...
Abstract : The influence of selected environmental conditions on the acute toxicity of 3 selected chemicals (K2Cr2O7, CuSO4and Na pentachlorophenate) to instar II-III larvae ofStreptocephalus proboscideuswas evaluated. ...
The prerequisite for the use of Fluotox tests as (rapid) alternatives to acute toxicity tests is a good correlation of the results of the former with those of the latter. ...
Abstract : In the framework of the multicentre evaluation ofin vitrocytotoxicology (MEIC) programme, the first ten chemicals of the prescribed list were tested for acute toxicity in four standardised cyst-based aquatic invertebrate tests, consisting of two rotifer species (the estuarineBrachionus plicatilisand the ...
Abstract :A standardized 24-h acute toxicity test for the marine environment using the rotiferBrachionus plicatilisis described. ...
These include 1) adapting the Microtox® acute toxicity assay in a 96-well microplate format to markedly increase its sample throughput capabilities, 2) employing the SOS Chromotest™ to determine the genotoxic status of major industrial effluents discharging to the Saint-Lawrence River and their potential impact on downstream biota, 3) developing an ...
In order to determine the usefulness of some of these new microbiotests, comparative experiments have been carried out on the sensitivity of 2 Toxkit tests with the crustaceans Thamnocephalus platyurus and Daphnia magna, versus that of the crustacean Ceriodaphnia affinis and the protozoan ciliate Paramecium caudatum which are the test species indicated in the ...
In order to get a more holistic and synthetic evaluation of the ecotoxicological quality of the aquatic environment, the results from different toxicity tests are integrated and expressed in one single toxicological index. As a first step the results from the acute toxicity tests are integrated into a sub-index, ...
EPA states that the goal of the pilot program is to “evaluate the utility and acceptability of the GHS Mixtures Equation as an alternative to animal oral and inhalation toxicity studies for pesticide formulations.” For this pilot program, EPA is requesting submission of acute oral and acute inhalation toxicity study ...
Toxicity Data Acute Oral Toxicity (Limit-Test) Approximate (A) LD50 > 5000 mg/kg body weight of up to 3 % (w/v) AGRAGEL as a gel in 0.9 % (w/v) saline applied with stomach tube to 5 male and 5 female rats each. ...
As an important component of the ecologically relevant meiobenthic fauna, nematodes can be used for sediment assessments, with various assay tools ranging from single‐species toxicity tests to field studies. In this study, microcosms containing sediment to investigate direct and indirect effects of zinc on natural nematode assemblages, and acute ...
To evaluate the performance of the process using chitosan, we also carried out tests with aluminium sulphate (Al2 (SO4)3.14 H2O) as coagulant. In addition, acute toxicity tests were carried using the duckweed Lemna minor and the guppy fish Poecilia reticulata as test organisms. ...
The three diets were evaluated by comparing twenty weeks of culturing data, along with the organism's response to standard 96‐hour toxicity testing with ammonium chloride over a range of pH and temperature. ...
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 ...
A series of acute toxicity tests with the amphipod Hyalella azteca was performed to quantify the synergistic effect of piperonyl butoxide (PBO) on pyrethrins toxicity. PBO concentrations less than 4 µg/L caused no toxicity enhancement, while toxicity increased with PBO concentrations between ...