The major task of Chinese water governance has gradually shifted away from environment protection to ecology remediation, and the trace organic pollutants, including persistent pollutants antibiotics, attracted growing concern. present study examined seasonal distribution sources typical antibiotics in six representative lower reaches Yangtze River, as well their ecological risk environment. Si...

Abstract Honey is a suitable matrix for the evaluation of environmental contaminants including organochlorine insecticides. The present study was conducted to evaluate residues fifteen insecticides in honey samples unifloral and multifloral origins from Dir, Pakistan. (5 g each) were extracted with GC grade organic solvents then subjected Rotary Evaporator till dryness. extracts mixed n-Hexane ...

The Organisation for Economic Co-operation and Development has completed phase 2 of an international validation program for the rodent uterotrophic bioassay. The purpose of the validation program was to demonstrate the performance of two versions of the uterotrophic bioassay, the immature female rat and the adult ovariectomized rat, in four standardized protocols. This article reports the dose-...

A novel approach of modeling gas-particle partitioning using polyparameter linear free energy relationships (ppLFERs) is implemented into three different multimedia box models (the OECD Pov and LRTP screening tool (The Tool), ChemRange, and CliMoChem) and compared to approaches based on the octanol-air partition coefficient (K(OA)). In all three multimedia models, calculated overall persistence...

Abrasion of tire wear is one the largest sources microplastics to environment. Although most particles settle into soils, studies on their ecotoxicological impacts terrestrial environment are scarce. Here, effects (<180 μm) three ecologically relevant soil invertebrate species, enchytraeid worm Enchytraeus crypticus, springtail Folsomia candida and woodlouse Porcellio scaber, were studied. Thes...