This paper presents a toxicokinetic/toxicodynamic analysis to appraise arsenic (As) bioaccumulation in farmed juvenile milkfish Chanos chanos at blackfoot disease (BFD)-endemic area in Taiwan, whereas probabilistic incremental lifetime cancer risk (ILCR) and hazard quotient (HQ) models are also employed to assess the range of exposures for the fishers and non-fishers who eat the contaminated fi...

The management of dredged sediments is a priority issue in the Mediterranean sea where sediments are historically polluted. The aims of this study were to evaluate the toxicity of port sediment samples and the effect of three mineral additives (hematite, zerovalent iron (ZVI) and natural zeolite (NZ)) on sediment elutriate toxicity. Four sediments (A, B, C and D) were provided by port authoriti...

Few studies have considered the environmental impacts of impurities and byproducts associated with low-efficiency nanomanufacturing processes. Here, we study the composition and aquatic toxicity of low-purity, as-produced fullerenes (C60) and metallofullerene waste solids, both of which were generated via arc-discharge synthesis. Scanning electron microscopy with energy dispersive X-ray spectro...

Correlations between carcinogenic potency (p or I,/TDsa) and acute toxicity (I-D& and between carcinogenic potency and maximum tolerated dose (MTD) have been described by several authors (l-5). The correlations have been attributed in part to a bias inherent in the carcinogenicity bioassay, namely, that the carcinogenic potencies of chemicals that are highly toxic and only weakly carcinogenic c...

The toxic effects of Fe 2+ ions and resorcinol on Lemna minor in their joint presence the aquatic environment were studied. test response bioassay solutions , resorcinol, mixtures was a violation permeability duckweed membranes. This parameter estimated from change electrical conductivity medium which plant placed, exposed to toxicant acute experiment (30 min). It found that addition both an eq...

Despite laws and directives for the regulation restriction of pesticides in farming, large use Plant-Protection Products (PPPs) paddy fields is a relevant worldwide cause environmental contamination. The aim this work to evaluate impact due PPPs by using an integrated approach based on chemical analyses ecotoxicological hazard assessment, supported statistical tools, order overcome issues relat...

The citrus red mite, Panonychus citri (McGregor), is an important pest of in China, where pesticides are commonly used orchards. In order to reduce the use chemical against P. and development resistance, screening biological control agents has attracted attention students. this study, seven plant essential oils with high toxicity were selected from 40 by leaf-dip bioassay, including lemongrass,...

Green toadfish Lagocephalus lunaris inhabits tropical and subtropical seas and contains high tetrodotoxin (TTX) levels in the muscle as well as liver and gonad. In 2008 to 2009, food poisoning due to ingesting L. lunais occurred in Western Japan. Five specimens of green toadfish caught in Kyushu coast, Japan, were analyzed for toxicity, toxins, and species identification. All five specimens wer...

The behavioral responses of zebrafish (Danio rerio) to sublethal concentrations of sodium hypochlorite (NaClO)-based household bleach were quantified in order to index toxicity of the solution. The swimming behavior of zebrafish was captured using nonplanar 3D stereocameras in combination with 3D coordinate computation with perspective correction (3DCCPC) to compute for actual 3D coordinates. S...

Background: The Pharmaceutical companies are very interested in the discovery of new natural bioactive molecules with an impoortant effect and less toxicity, order to replace old drugs, especially antibiotics which had lost their effectiveness following spread multi-resistant bacteria. This study was aimed investigate, vitro, some extracts (aqueous extracts, oily essential oils) arabic myrrh gu...