MicroBioTests Inc. articles

Particles from the tread of vehicle tyres are a global pollutant, which are emitted into the environment. Recent research highlights the chronic toxicity of tyre-tread particles and leachates on Daphnia magna, a key species in freshwater ecosystems. These tiny water fleas play a critical role in maintaining the ecological balance, but exposure to microplastics and chemicals from tyre wear could impair their survival and reproduction and global aquati

Model organisms play a crucial role in ecotoxicology, providing reliable data to assess the environmental impact of pollutants. From algae and crustaceans to bacteria, these test organisms help us understand ecological risks and safeguard ecosystems.

At Microbiotests Inc, we offer a diverse and scientifically validated test battery of test biota and bioassays to meet your ecotoxicological

Abstract :An intensive review on the use of algae in ecotoxicological testing is herein described. The state of the art in algal toxicity testing is given and the currently applied algal tests in hazard assessment schemes are emphasized. However, the need of an alternative, rapid and cost-effective algal tests is underscored considering the inequality between the plethora of new chemicals being produced each year and the need of toxicity data of these chemicals. The static al

Abstract : The chemical composition and toxicity of five phenolic wastewaters samples collected from the Kohlta-Järve (Estonia) oil-shale industry region were analysed. The total phenolic contents (HPLC data) of these samples ranged from 0.7 mg/l to 195 mg/l. A total of 11 phenol (up to 84 mg/l) and p-cresol (up to 74 mg/l). Artificial phenolic mixtures were also composed, to mimic the content of phenolic compounds in the wastewater samples. The theoretical toxicities of

Abstract : The number of available aquatic toxicity tests is large and increases every year. For certain types of applications such as the routine screening of large numbers of environmental samples, standard conventional tests may be perceived as being unpractical. This has lead to the development of a (increasing) number of alternative small-scale toxicity tests also called microbiotests. The present paper reviews the potential use and limitations of a number of these alter

Abstract :Linear and non-linear modelling of human acute toxicity (as human lethal concentrations; HLCs) of the 38 organic chemicals from the 50 priority compounds of the Multicentre Evaluation ofIn VitroCytotoxicity (MEIC) programme was investigated. The models obtained were derived either from a set of 23 physicochemicals properties of the compounds of from their acute toxicities to five aquatic non-vertebrates together with the physicochemical properties. For the linear type, modelling was

Abstract :Small-scale biological tests (microbiotests) have steadily increased in development and application over the last 30 years in the field of aquatic ecotoxicology. Multitrophic level assessment requirements, attractive features of microbiotests, and the constant search for simplicity and cost efficiency of testing are reasons explaining the expanding use of microbiotests. In this article, the major characteristics that advantageously confer popularity on microbiotests

Abstract : The western part of Teshima Island in the Seto Inland Sea (Japan) had been used as an illegal dumping ground for more than 10 years and the accumulated waste was estimated to be about 510.000 tons. There has been no systematic toxicity assessment conducted on this waste. In this study, a battery of bioassays was applied to the collected leachates. Toxicity of the leachates was evaluated using the Microtox test, umu test (a mutagenicity assay), yeast inhibition zone

Abstract : The primary objective of this project was to evaluate six Toxkits and the IQ Toxicity TestsTM, for suitability in the role of screening of whole effluents in DTA required by Resource Consents. As an extension, their role as \`up the pipe\` toxicity identification tests were also evaluated.

Screening tests must be cost effective (so that regular testing may be performed), easy to use (at site desirable but not essential), readily available, sensitive to a

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 Microtox^TM test) commonly used in ecotoxicology testing. Three of the aquatic invertebrate tests consisted of cyst-based toxicity tests (Artoxkit M withArtemia salina, Streptoxkit F withStrept